Genetic diversity in soybean genotypes from north-eastern China and identification of candidate markers associated with maturity rating
文献类型: 外文期刊
第一作者: Li, W.
作者: Li, W.;Han, Y.;Zhang, D.;Yang, M.;Teng, W.;Jiang, Z.;Qiu, L.;Qiu, L.
作者机构:
关键词: genetic variation
期刊名称:PLANT BREEDING ( 影响因子:1.832; 五年影响因子:1.956 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Random amplified polymorphic DNA (RAPD) and simple sequence repeat (SSR) markers were used to estimate the genetic relationships among 101 soybean cultivars developed in north-eastern China. Fifty-three fragments of the 100 RAPD markers and 35 SSR markers tested were polymorphic across the 101 soybean cultivars. Similarity values among these soybean cultivars ranged from 45.2% to 100% for RAPD data, and ranged from 36.1% to 100% for SSR data. The similarity matrices for SSR data and RAPD data were moderately correlated (r = 0.31, P < 0.05). Cluster analyses indicated that the cultivars released from the same seed company were mostly grouped together. A principal component analysis, based on the combined RAPD and SSR data, yielded a good separation of soybean varieties with different maturity ratings [represented by soybean Heat Unit (HU)]. The varieties with HU < 2200 were well separated from those with HU > 2200. Four RAPD markers and eight SSR markers were significantly associated with the maturity ratings of soybean.
分类号: S3
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