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  • Mao-lin YAN, Wen-hua SHI, Xiao-liang ZHOU, Zhi-dan ZHANG, Yang ZHANG, Cheng-liang WU
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 643-653. https://doi.org/10.19802/j.issn.1007-9084.2022158

    To better understand import dependence and industrial safety on Chinese vegetable oils, two oilseeds (soybean and rapeseed) and 5 vegetable oils (soybean oil, peanut oil, rapeseed oil, sunflower oil and palm oil) were used as examples, to measure safety evaluation indexes, and to analyze the reliability and industrial safety status. Results showed that both soybean and rapeseed import concentrations are decreasing, dependence on single country became lower, thus the import reliability became higher. But the industrial safety index of both was higher than 80, still at a crisis state in 2020. In terms of main vegetable oils, the concentration of three oils (soybean oil, peanut oil and rapeseed oil) was decreasing, with low dependence on a single country with high import reliability, while sunflower oil and palm oil were relatively concentrated, with high dependence on single country in low import reliability. In 2020, the industrial safety index of soybean oil and peanut oil were 60 and 68 respectively, which were in an unsafe state. The industrial safety index of rapeseed oil, sunflower oil and palm oil were all greater than 80, which were all in crisis states. The safety problems of plant oilseed and oil industry are severe in China. We suggested that moderately expanding the cultivated area of oilseeds, cultivating high quality germplasm resources, improving mechanization level and domestic oil supply chain system, using the geopolitical advantage to establish good partnership, deepening the international trade cooperation, and encouraging competent agricultural enterprises to expand international raw material base and supply chain.

  • Ying-dong BI, Chao FAN, Guang-sheng ZHOU, Shu-feng DI, Wei LI, Miao LIU, Ling WANG, Jian-xin LIU, Wen-wei LIANG, Guang YANG, Ting-dong FU, Yong-cai LAI
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(3): 437-443. https://doi.org/10.19802/j.issn.1007-9084.2022080

    Heilongjiang Province is an important grain production region in China. Fertilizer and forage dual-purpose rape could compensate the lack of forage grass in this area. As a green manure crop, forage rape plays an essential role in improving soil structure and increasing soil organic matter content. The development of forage rape in Heilongjiang was reviewed in this paper, the introduction and selection of forage rape varieties, planting patterns, cultivation techniques, silage processing and utilization methods were summarized. Existing problems in the cultivation, processing and utilization of forage rape in cold regions of north China were also summarized, and the research and development of forage rape in cold area were prospected.

  • Meng-ying WANG, Yong YANG, Yue-peng LU, Liang-xiao ZHANG, Zhuo-long GUAN, Xiao-yi QIU, Zhe Chen
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 413-418. https://doi.org/10.19802/j.issn.1007-9084.2021319

    To better understand natural flavor in sesame oil, content of vanillin, ethyl vanillin and methyl vanillin in 42 commercial sesame oil and blend oil products were investigated, thus to provide reference for quality monitoring of edible oil. Results showed that vanillin was detected in 22 samples (52.4%) with a content ranging from 103 to 839 μg/kg. At the same time, the detection rates of vanillin in sesame oil and blended oil were both 100%, while ethyl vanillin and methyl vanillin were not detected in any sample. To exploring the source of vanillin in sesame oil, the content of 3 vanillin compounds in 12 freshly squeezed sesame oils were detected. The results showed that vanillin was detected in all samples with a content ranging from 210 to 640 μg/kg, while methyl vanillin and ethyl vanillin were not detected. In summary, it could be concluded that the background of vanillin found in sesame oil was natural.

  • Yu-qin TU, Jia-jia XIN, Yang ZHANG, Nan-feng ZHANG, Xing-lin DAI, Wei-feng TU, Jie TANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 675-683. https://doi.org/10.19802/j.issn.1007-9084.2022162

    Rapeseed (Brassica napus L.) is the largest oil crop in China, and the mechanized production is the inevitable trend of rapeseed industry. But the long flowering period and inconsistencies of silique mature caused by indeterminate inflorescence in rapeseed are key links affecting mechanized harvest. Therefore, gene mapping, candidate gene prediction and cloning of the determinate inflorescence trait are of great significance for the genetic improvement of rapeseed, the cultivation of new varieties suitable for mechanized harvest and the breaking of the bottleneck of rapeseed mechanized production. A natural and novel rapeseed mutant with determinate inflorescence was identified in this study. The F2 isolated population was constructed by crossing with Zhongshuang 11(ZS11).Two pools with 20 determinate and indeterminate inflorescence F2 lines were used for gene mapping of determinate inflorescence, 20× and 10× depth of whole genome re-sequencing were conducted for the two pools and parental lines, respectively. A total of 277 679 SNP and 302 625 InDel polymorphic sites were identified for whole genome mapping of determinate inflorescence traits. Using the △ SNP-index method for association analysis, a total of 892 polymorphic marker loci were screened, containing 683 genes, which were mapped on six significantly associated interval of chromosome A09, A10 and C09, of which, the locus on chromosome C09 exhibited the highest peak. By A. thaliana genome homologous sequence alignment, combined with gene functional annotation and sequence difference analysis, genes of BnaA09g34410D, BnaA09g37880D, BnaA09g38520D, BnaC09g40470D, BnaC09g40480D and BnaC09g49710D were predicted as potential candidate genes of determinate inflorescence within the association interval on chromosomes A09 and C09. The genes of BnaA09g34410D, BnaA09g37880D and BnaC09g49710D were involved in the control of flower development and flowering time, and the three genes located within associated interval of chromosome C09 with the highest peak having sequence differences of allelic genes, were predicted as the main genes controlling this determinate inflorescence trait. The results establish the theoretical foundation for the cloning and function identification of the determinate inflorescence genes in rape.

  • Ting LI, Jia-qi WANG, Wei-cong HUO, Jin-feng WU, Jia-shi PENG, Ding-gang ZHOU, Ming-li YAN, Da-wei ZHANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 711-719. https://doi.org/10.19802/j.issn.1007-9084.2022134

    Brassica juncea exhibites relatively tolerance to heavy metal cations. Because of NRAMP (natural resistance associated macrophage protein) is mainly involved in absorption and transport of metal cations, we used NRAMP homologous genes of Arabidopsis thaliana as reference, to better understand the NRAMPs in B. juncea. Thus 18 BjNRAMP memmbers in B. juncea were identified on 12 chromosomes. Phylogenetic analysis indicated that BjNRAMPs were clustered into 2 clades. Their expansionswere possibly caused by B.juncea genome triplication after the divergence of Arabidopsis and Brassica. Transcriptome sequencing data from roots and leaves under different concentration of cadmium (Cd) treatments indicated that expressions of BjNRAMPs were tissue-specific, in which BjNRAMP1.4 expression in root was increased under 30 mg/kg of Cd treatment. BjNRAMP2.2 expression in leaf was induced by 10 mg/kg of Cd treatment, but decreased in roots. After transformed into yeast, overexpression of BjNRAMP1.4 in Cd-sensitive yeast mutants significantly improved its tolerance to Cd. Promotion function of BjNRAMP2.2 played a limited role, not as good as BjNRAMP1.4.

  • Na ZHANG, Jun-yan WU, Wei-liang QI, Li MA, Rui ZENG, Xiao-lei TAO, Wen-xin YANG, Li-jun LIU, Xue-cai LI, Gang YANG, Wan-cang SUN
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 694-703. https://doi.org/10.19802/j.issn.1007-9084.2022176

    To study the function of VDAC1 gene in Brassica napus under low temperature stress, CDS region of BnVDAC1 gene was cloned using cDNAs as templates from both Tianyou 2288 (weak cold resistance) and 16NTS309 (strong cold resistance). Bioinformatics analysis found that their BnVDAC1 genes encoded 276 amino acids. The isoelectric points were 7.28 and 8.46 respectively. The proteins were stable (< 40). The secondary structures were mainly random coil, and the tertiary structures were composed of 2 β-barrels surrounded by β-sheets. Through pBI121-BnVDAC1-GFP fusion expression vector, tobacco leaf subcellular localization showed thatBnVDAC1 was mainly located in mitochondria or plasma membrane. The quantitative results showed that the relative conductivity, relative water content, H2O2 and O2?- content of the leaves of the 2 varieties were different under low temperature treatment. The expression level of BnVDAC1 was correlated with relative conductivity, relative water content and ROS changes. The differences in relative conductivity, relative water content, H2O2 and O2?- content of leaves between the 2 varieties under low temperature treatment were analyzed and compared. The quantitative results showed that the expression level of BnVDAC1 was correlated with relative conductivity, relative water content of leaves and ROS changes. The gene had obvious variety specificity and tissue expression specificity.

  • Chang-gui LEI, Yu-zhu Meng, Jin-ping CHEN, Xiao-dong ZHANG, Hua-zhen CAI, Xu-wei ZHANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(3): 454-461. https://doi.org/10.19802/j.issn.1007-9084.2022114

    Virgin coconut oil is a valuable source of medium chain fatty acids, with lauric acid comprising 44%-54% of the total fatty acids. With the deepening of research, virgin coconut oil has attracted growing attention in the field of food and medicine. Besides, its market scale is also expanding year by year. In this article, the nutrient components and physicochemical properties of VCO were introduced, and the health effects of VCO on antioxidant, antiviral, antibacterial and cardiovascular disease prevention and their potential mechanisms were reviewed. It was aimed to provide theoretical reference for the further development and popularization of virgin coconut oil.

  • Hai-yang ZHENG, Li-long HOU, Fu-bin CAO, Ru-ru WEI, Jian-guo XIE, Hong-wei JIANG, Qing-shan CHEN
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 283-292. https://doi.org/10.19802/j.issn.1007-9084.2022065

    For high yield soybean plant type breeding, QTL mapping for soybean plant height was performed by CSSLs (chromosome segment substitution lines). Among 208 lines in the CSSL population, 12 QTLs associated with plant height were detected. Among the QTLs, qPH7-1, qPH12-1 and qPH16-1 could be repeatedly detected in two years, which containing 35 genes. According to gene annotation, biparental sequence alignment and qRT-PCR, Glyma.16G198800 and Glyma.16G199000 were predicted as candidate genes regulating soybean plant height. Haplotype analysis results showed that the difference of SNP-4034 in Glyma.16G198800 between two parents might be responsible for plant height difference. The above results were expected to provide theoretical basis for soybean plant type breeding.

  • Chang-feng DING, Zhi-gao ZHOU, Xing-xiang WANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 215-220. https://doi.org/10.19802/j.issn.1007-9084.2022125

    In recent years, heavy metal contamination in soil and agricultural products has aroused widespread concerns. China has established a classified management system for agricultural land. According to the soil contamination degree, agricultural land is divided into 3 categories, priority protected, safe use and strict control. The adoption of risk control measures is encouraged, such as adjusting the planting structure of strictly controlled agricultural lands. But scientific and effective mode of planting structure adjustment is still needed for wide application. Peanut is an important source of edible vegetable oil and leisure food in China, with strong ability to accumulate cadmium (Cd) and other heavy metals in soil. Since Cd is mostly bound to protein in peanut kernel, Cd content in peanut oil is low enough for food, thus the directional development of oil peanut in heavy metal contaminated land in southern China might not only alleviate edible oil shortage and improve oil supply, but also solve the sustainability problem of crop rotation and planting structure of the limited cultivated land at present. For the differentiated demand of oil and edible peanut, suggestions were put forward on peanut distribution in South China including developing edible peanut in unpolluted upland sloping field, developing peanut-rice and peanut-rape rotation patterns in the areas with mild, moderate and severe Cd pollutions, respectively. Policy suggestions included diversifing peanut breeding and accelerating research and development of soil pollution risk control technology, establishing limit standards of heavy metals for edible peanut and oil peanut respectively, strengthening market supervision and monitoring of heavy metal content in peanut, and cultivating regional peanut oil processing enterprises.

  • Ge-ge ZHANG, Hai-dong LIU, De-zhi DU
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 231-239. https://doi.org/10.19802/j.issn.1007-9084.2022175

    In order to accelerate hybrids breeding for spring rapeseed, population structure of Brassica napus L. restorer lines and their core germplasm were studied. Whole-genome resequencing technology was used to scan a population of 144 restorer lines. Genetic distance was calculated by using 3 881 462 SNP markers, to determine the optimal subpopulations, and assess the degree of linkage disequilibrium. Stratified sampling was combined with the strategy of maximizing the number of alleles and rare alleles on core germplasm construction. Results showed that the population was divided into 7 subgroups based on both genetic distance and population structure. The degree of linkage disequilibrium was low in the whole population. Two superior core subsets, C30 and C40, were constructed by CoreHunter. Among them, C30 included 44 resources and C40 included 59. Both allele coverage reached 99% and polymorphic information content reached 0.24. They could represent the 144 original germplasm. In conclusion, C30 was determined to be used for heterosis analysis.

  • Yu-qi HE, Kun-jiang YU, Yuan-hong LI, Qian WANG, Xu YANG, Xian-ya WANG, En-tang TIAN
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 684-693. https://doi.org/10.19802/j.issn.1007-9084.2022147

    To achieve stable high yield and suitable mechanized cultivar for rapeseed(Brassica napus L.), QTLs on developmental plant height were studied using an population named AH, which composed of 189 recombined inbred members. Net increase in plant height of 5 growth stages and final plant height at maturity were investigated in Guiyang in 2020, and phenotypic variation and their correlations were analyzed. Based on previous constructed high-density molecular marker genetic linkage map, QTL mapping was performed to identify the stage-specific expression QTLs regulating plant height development on a genome-wide scale. Results showed great variations in plant height during the 5 growth stages after budding. Plant height changed the most in the 1st week, and the increase gradually slowed down over time. Net height growth at each stage was positively correlated with the previous stage. A total of 60 QTLs were detected in the 5 stages, including 4 major QTLs, 8 QTLs stably expressed in 2 different stages, and the others (specifically expressed in at least one stage). 6 QTLs were identified at maturity, including one major QTL. Comparative analysis showed that 6 QTLs at maturity stage were not detected at 5 developmental stages. Totally 5 major QTLs identified in this study have not been reported yet, thus can be used as new loci for developmental plant height breeding in B. napus. Combined with gene function annotation, 15 candidate genes related to plant height were preliminarily screened. It was expected to deepen the understanding of genetic regulation on rapeseed plant height, and provide new resources for semi-dwarf breeding.

  • Sheng-nan MA, Hao-ran ZHANG, Yue WANG, Xu-hang ZHANG, Ya-qi HUANG, Jiang-xu WANG, Zhen-bang HU, Da-wei XIN, Qing-shan CHEN, Jin-hui WANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 720-727. https://doi.org/10.19802/j.issn.1007-9084.2022153

    Soybean can symbiosis with rhizobia to produce nodule, through which symbiosis nitrogen fixation can provide essential nitrogen source for soybean growth and development. Rhizobia type III effectors are important signal molecules regulating symbiotic nitrogen fixation, which is very important for the establishment of symbiotic nitrogen fixation. In this study, NopAA mutants of rhizobia HH103 type III effecting factor were constructed and identified by bioinformatics analysis, three-parent hybridization and Southern blot were used to construct the mutant. Expression analysis showed that NopAA mutation significantly reduced the expression of soybean immune-related gene PR1. Through NopAA expression detection during nodule formation, it was found that NopAA could still be expressed by rhizobia after nodule maturity. Finally, NopAA mutation can significantly inhibit the production of nodule through nodule formation ability identification. This study laid a foundation for revealing the mechanism of the type III effector NopAA and provided a theoretical basis for the utilization of co-organic nitrogen fixation in soybean agricultural production.

  • Yu-ting YANG, Wen-kai YU, Ying XU, Hui WANG, De-sheng MEI, Li-xi JIANG, Qiong HU, Jia LIU
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 240-252. https://doi.org/10.19802/j.issn.1007-9084.2022058

    In order to breed rapeseed varieties with high oleic acid, major/minor genes and allelic variations related to fatty acid synthesis were found, and the genetic structure basis of natural variation of fatty acids in rapeseed oil was analyzed. Based on genome resequencing data and fatty acid composition phenotypes of 289 rapeseed core collections from all over the world, the whole gene association analysis was carried out. Results showed 9 significant loci regulating oil quality. Among them, 2 loci on chromosome A08 and C03 were the main effect loci, with the phenotypic interpretation rates of 45.01% and 43.52% respectively, which corresponding to 2 major genes BnFAE1.A08 and BnFAE1.C03. In the other 7 loci (micro-effect sites), 6 candidate genes were found. Genetic variation analysis showed that oleic acid content was affected by 38 SNPs (single nucleotide polymorphism) and 5 InDels (insertion and deletion) mutations which were inside the BnFAE1.A08 gene (including its 2 kb-region of the upstream and downstream), and also by 1 InDel mutation at 6 bp after the start codon of BnFAE1.C03 gene. The 2 main effect loci, which compose Hap1 haplotype group, could accurately identify those rapeseed varieties with 64% oleic acid. The Hap1 haplotype could be traced back to the earliest double-low rapeseed variety Tower. Through further correlation analysis, a small effector locus O9.A5 was found on A05 chromosome, and the accessions with this locus might increase the oleic acid content to 71.87% based on the two major effector loci Hap1.

  • Ling DOU, Qing-nan HAO, zhong-lu YANG, Shui-lian CHEN, Xian-zhi WANG, Zhi-hui SHAN, Xin-an ZHOU
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 704-710. https://doi.org/10.19802/j.issn.1007-9084.2022137

    Soybean pod shattering is one of the important factors influencing soybean yield loss. In this study, gene distribution of pdh1 in 105 varieties from multiple variety tests in Yangtze River regions was studied. Results showed that 56 of all tested varieties contained pdh1 gene, and pdh1 was concentrated in summer type soybean. The number of varieties containing pdh1 accounted for 91.4% of the total summer soybeans. Its distribution has obvious regional characteristics. About 82.3% soybean varieties with pdh1 were bred from Huang-Huai-Hai regions and Northeast China (including Liaoning, Anhui, Hebei, Henan, Jiangsu, Shandong), while only 11.6% varieties containing pdh1 were from South China (including Fujian, Hubei, Hunan, Jiangxi, Sichuan and Zhejiang). Thus the pdh1 gene had been effectively used in breeding for Northeast China and Huang-Huai-Hai regions, and also could be a marker for pod-shattering resistance selection. But it were poorly used in South China due to the high temperature and humidity in fields. It was suggested that molecular marker assisted selection might be helpful to improve the breeding efficiency regionally on pod shattering resistance.

  • Guang-wei WEI, Hui-yi YANG, Min WANG, Ting-hai SHEN, Xi YANG, Xiao-hui WANG, Ru-qi SU, Sheng FANG, Zi-ming WU
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 735-744. https://doi.org/10.19802/j.issn.1007-9084.2022177

    To evaluate the productivity, adaptability and stability of lignans content of black sesame cultivars under different ecological conditions, a multi-site multi-year experiment was conducted on 42 black sesame cultivars in 3 pilot sites with different soil fertility in Jiangxi Province. The content of sesamin and sesamolin in different black sesame cultivars was systematically analyzed by combined analysis variance and GGE (genotype + genotypes and environment interactions) biplot and other methods. The results showed that the average content of sesamin was the highest at Poyang site (1.92 mg/g) and the lowest at Jinxian site (1.73 mg/g). The average content of sesamolin at Agricultural University (Nongda) site was the highest (2.88 mg/g), while the average content of sesamolin in Jinxian was the lowest (1.86 mg/g).The results of combined variance analysis showed that the contents of sesamin and sesamolin in different black sesame cultivars were significantly different, and were significantly affected by the environment (E) and the interaction between genotype and environment (G×E). The results of GGE biplot analysis showed that G1 and G15 were stable cultivars with high sesamin content, and G10 had the highest sesamin content in multiple environments, showing strong adaptability and high promotion value. G2, G3 and G40 are stable cultivars with high sesamolin content. G2 sesamolin content had the best adaptability at Poyang and Agricultural University, and the best adaptability at Jinxian was G11. Compared with low sesamin and sesamolin, the oil content of high sesamin and sesamolin types increased significantly, and showed a very significant positive correlation with oil content, so that the synchronous improvement of sesamin, sesamolin and oil content could be achieved.

  • Yu-juan GU, Lei LIU, Xiang-xiang ZHAO, Fu-xia LIU, Fang-fang LU, Da-an LIANG, Tian-qi HAO, Qian GAO, De-peng WU, Hui GAO
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(3): 524-532. https://doi.org/10.19802/j.issn.1007-9084.2022207

    Rapeseed (Brassica napus L.) exhibits different degrees of secondary dormancy, which, if strong, can easily lead to the occurrence of volunteer plants in field and affect the quality and safety of seed production. In this study, we used Huaiyou-WSD-H2 (weak secondary dormancy) and Huaiyou-SSD-V1 (strong secondary dormancy) lines, which are derived from two breeding lines, to induce secondary dormancy using polyethylene glycol (PEG) to simulate drought, and conducted high-throughput transcriptome sequencing. Totally 17 706 highly expressed genes (FPKM> 5) from the high-throughput transcriptome sequencing were divided into 17 co-expression modules using weighted gene co-expression network analysis (WGCNA). Combined with GO/KEGG enrichment analysis and differential expression analysis, 3 genes related to tryptophan metabolism (BnaC08g25400D, BnaC09g31260D and BnaC09g49740D) were screened in the yellow module, which was highly significantly and positively correlated with secondary dormancy, and were differentially expressed between strong and weak secondary dormant materials after induction. Validation by qRT-PCR and preliminary analysis of the regulatory network of candidate genes were performed to provide a theoretical basis for resolving the genetic basis of tryptophan-dependent growth hormone biosynthesis pathway to regulate secondary seed dormancy in rapeseed.

  • Guo-yu HU, Ying-ping XIA, Xiang-bei DU, Jin-hua CHEN, Jie-kun LI, Da-gang WANG, Qian WU, Wei-hu WANG, Yong YANG, Zhing-ping HUANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(4): 793-802. https://doi.org/10.19802/j.issn.1007-9084.2022145

    The limiting factors of summer soybean yield in Anhui Province were elucidated to provide a theoretical reference for increasing soybean yield in this area. The summer soybean yield and the effects of climate and disease on yield formation were studied by analyzing the disease occurrence and the data of yield and meteorology of the variety comparative tests of summer soybean in Anhui Province from 2016 to 2021. The results showed that the average annual yields of the tests were between 2180.6-2826.4 kg/hm2, which were higher than the average yields of soybean production in Anhui Province in recent years (1500 kg/hm2). The average temperatures for late July (flowering period) in high-yield years were lower than that in low-yield years, and there was no high-temperature weather with the daily maximum temperature exceeding 35℃, nor daily average temperature exceeding 30℃. The average rainfall in mid-July and late July in high-yield years were more than that in low-yield years, and the probabilities of autumn drought were early September > late August > mid-August. Due to the influences of climate, diseases and pests, 11.1% of the tests did not obtain valid data, and the yield of the lowest yield experimental sites in different years decreased by 13.6%-36.3% compared with the average annual test yield. Changeable transitional climate and high disease frequency are the main reasons affecting soybean yield in Anhui Province. The high temperature in late July and the autumn drought in early September are important limiting factors for soybean yield. The high temperature during the flowering period of soybean may be one of the inducing factors for the occurrence of "Zhengqing" of soybean in this area. In order to increase soybean yield in Anhui Province, comprehensive consideration should be given to improving the stress tolerance of varieties, optimizing planting techniques and improving water conservancy facilities.

  • Miao-miao ZHOU, Rui-heng TANG, Yu-ying TAI, Wei YANG, Jin-xia YUN, You-ning WANG
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(3): 444-453. https://doi.org/10.19802/j.issn.1007-9084.2022247

    Potassium is one of essential macronutrient that influence plant growth and development. Soybean is an important grain and oil cash crop. Potassium underpins soybean yield production, quality determination and stress tolerance. Actually, though potassium in soil is abundant, plants usually live under a potassium-deficiency conditions due to chemical state of potassium in soil that is hardly up-taken directly by plant root system. Therefore, potassium fertilizers are commonly used in agriculture to meet the potassium requirement, but excessive use of fertilizers has led to serious environmental pollution. Improving soybean potassium use efficiency is a better way to resolve the dilemma. Therefore, understanding how soybean sense potassium deficiency and activate its potassium uptake system is a prerequisite for improving potassium use efficiency of soybean. The objective of this paper is twofold: firstly, to provide a comprehensive review of the patterns governing potassium uptake, accumulation, redistribution; secondly, to focus on research progress in molecular and genetic mechanisms of potassium use efficiency. Finally, some unsolved issues and key questions were discussed.

  • Yu GAO, Long WANG, Zi-jie WANG, Yue-ying WANG, Meng-lei XU, Shi-yu ZHU, Zi-xin HAN, Shu-sen SHI
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 221-230. https://doi.org/10.19802/j.issn.1007-9084.2022078

    Using insect sex pheromones to trap agricultural pests is an important and cost-effective green pest control technology. In recent years, sex pheromones of some soybean pests have been identified and applied successively. We reviewed the research progress in insect sex pheromones of soybean pests from 6 aspects: chemical components and the roles of components of sex pheromones, polymorphism of sex pheromones, diversity of ecological functions of sex pheromones, synergism or antagonism between sex pheromones and plant volatiles, synthetic pathway and chemical sensing mechanism of sex pheromones, and field application technology. It was expected to provide a reference for further research in future.

  • Qiong LIAO, Jia-lin LIU, Jing LIU, Ying ZHU, Jue XU, Kai FENG, Hui-ling FU, Ying-ying HUANG, Chuang SHEN, Tian-yu ZHANG, HUAYing-peng, Jun-liang XIN
    CHINESE JOURNAL OF OIL CROP SCIENCES. 2023, 45(2): 271-282. https://doi.org/10.19802/j.issn.1007-9084.2022045

    To better understand the resistance of Brassica napus to soil cadmium (Cd) stress, ABCC family genes and their transcriptional response to Cd stress in B. napus were studied. 38 ABCC homologs were identified, and were systematically analyzed on their phylogenetic evolution, chromosome location, gene structure and transcriptional response to Cd stress. Results revealed that all BnaABCC transporters fall into their corresponding clades of Arabidopsis thaliana, but ABCC9 was not found in B. napus. Most of the BnaABCCs were stable and hydrophobic, and Ka/Ks ratio was less than 1, suggested the results of strongly purification and selection. Gene structures of BnaABCCs were varied, which were disrupted by 6-34 introns. Vast of cis-acting elements could bind to their promoters, Dof might be the richest one. 38 BnaABCCs were mapped on chromosome 7 A and chromosome 8 C, and collinearity analysis showed abundant homologs in B. napus and Arabidopsis, B. rapa and B. oleracea. Transcriptome analysis showed that BnaABCCs were induced by Cd stress. Among them, BnaC1.ABCC3-1 and BnaA6.ABCC4-3 were identified as core genes in shoot and root respectively.