ZHANG Xiao-ming,LIU Li-jun,TANG Xiao-fei,et al.Genetic Diversity of Soybean Germplasm in Russia and China[J].Soybean Science,2008,27(01):15-20.[doi:10.11861/j.issn.1000-9841.2008.01.0015]
中俄大豆种质遗传多样性分析
- Title:
- Genetic Diversity of Soybean Germplasm in Russia and China
- Keywords:
- SSR; Wild soybean; Cultivated soybean; Genetic diversity
- 文献标志码:
- A
- 摘要:
- 种质资源的扩增、改良和创新是解决大豆遗传基础狭窄的主要途径。利用SSR分子标记技术对来自俄罗斯和黑龙江省的82份野生大豆和东北四省区的39份栽培大豆材料进行遗传多样性分析,为种质资源利用和创新提供分子依据。在所合成的45对SSR引物中,12对引物扩增结果表现出良好的多态性,多态性位点共检测到50个等位基因,每个位点2~7个,平均4.17个,平均多态性信息量为0.595。聚类分析结果表明,在遗传相似系数0.734处,野生大豆和栽培大豆被明显的分开,与以往大豆属Soja亚属的形态学分类结果相一致,为野生大豆和栽培大豆分为两个种提供了分子水平上的依据。野生大豆和栽培大豆的平均遗传距离分别为0.2595和0.1895,表明野生大豆的遗传多样性比栽培大豆丰富。因此,可以利用俄罗斯和东北地区的野生大豆特有等位变异来扩大东北栽培大豆遗传多样性,进而拓宽东北大豆遗传基础。
- Abstract:
- The collection,improvement and innovation of germplasm resources are main ways to enrich the genetic basis of soybean.The genetic diversity of 84 accession of wild soybean from Russia and Heilongjiang province,China,and 39 accession of cultivated soybean from Northeast China,was studied by SSR technique.Forty-five SSR primers were synthesized according to published data,and 12 out of them had polymorphic alleles.A total of 50 alleles were observed,the number of alleles in different loci ranged from 2 to 7,averaging 4.17 per locus,the average polymorphism information content (PIC) was 0.595.Cluster analysis showed that wild and cultivated soybean belonged to two species from the dendgrom at the site of genetic similarity coefficient 0.734,which conformed to phenotypic results.The average genetic distance of wild soybean and cultivated soybean were 0.2595 and 0.1895 respectively,which suggested that wild soybean had more polymorphism than that of cultivated soybean.Hence,wild soybean from Russia and Northeast China could be used to broaden the genetic basis of cultivated soybean in Northeast China.
参考文献/References:
[1]Gai J Y, and Cui Z L.1994.Ancestral analysis of soybean cultivars released in china.Journal of Nanjing Agricultural University,17(3):19-23(盖钧镒,崔章林.1994.中国大豆育成品种亲本分析.南京农业大学学报,17(3):19-23)
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备注/Memo
基金项目:引进国际先进农业科学技术计划948项目(2006-G5)