Morphological and SRAP markers on genetic diversity of oil flax cultivars in China

doi:10.7505/j.issn.1007-9084.2014.03.007

Abstract

Abstract:

To analyze genetic diversity of 96 oil flax cultivars in different periods of China, morphological markers and SRAP markers were both used to make dendrograms. Results showed that according to morphological and SRAP markers, 96 accessions were classified into 4 groups when the Euclidean distance was 5.77 and similarity coefficient (GS) was 0.69. The deviation was clear that the genotypes classified by morphological markers had little relevance to those by SRAP. From 1950’s to 2010, more lines were bred and the genetic diversity increased, mainly in different regions in north China. Closer GS and steady Shannon index might be associated with focused breeding targets and widely introduced germplam.

Key words: Oil flax (Linum usitatissimum L.), SRAP, Morphological marker, Clustering analysis, Genetic diversity

HAO Rong-kai, YAN Xing-chu, DANG Zhan-hai,ZHANG Jian-ping, LI Wen-juan, ZHAO Li* . Morphological and SRAP markers on genetic diversity of oil flax cultivars in China[J]. 中国油料作物学报, 2014, 36(3): 334-.

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