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中国油料作物学报 ›› 2018, Vol. 40 ›› Issue (1): 35-.doi: 10.7505/j.issn.1007-9084.2018.01.005

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QTL Analysis of Resveratrol Content in Peanut Seeds

  

  1. Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
  • Online:2018-02-28 Published:2018-05-15

Abstract:

 Resveratrol is an important component of phytoalexins, and it affects human cardiovascular system. In this study, the resveratrol content in seeds of 140 lines in an RIL population (Zhonghua 10 × ICG 12625) was detected by high performance liquid chromatography (HPLC) in two environments. The result showed that the variation resveratrol contents in the RIL population ranged from 38.27 μg/ kg to 352.08 μg/ kg. Four Lines (QT0339, QT0369, QT0450 and QT0454) showed stable higher resveratrol contents than the high value parent in the two environments, ranging from 143.90 μg/ kg to 215.60 μg/ kg. The resveratrol contents of these lines were higher than that of the high value parent by 32.31 %, 5.80 %, 86.46% and 79.52 % in 2014 environment and 32.31 %, 5.80 %, 86.46 % and 79.52 % in 2015 environment, respectively. A total of 13 QTLs related to resveratrol content in peanut seeds were detected by WinQTLCart 2.5 software, and showed phenotypic variations of 2.2-7.4%. Notably, qRB8.1a and qRB8.1b were repeatedly detected in both environments. The results of this study provided a theoretical basis for breeding new peanut varieties with high resveratrol content.

Key words: Resveratrol, Peanut, QTL Mapping