Genetic diversity and population structure of eggplant (Solanum melongena L.)germplasm | 茄子种质资源遗传多样性和群体结构分析
2013
He Yijian, Nanjing Agricultural University, Nanjing(China),College of Horticulture | Liu Weidong, Nanjing Agricultural University, Nanjing(China),College of Horticulture | Liu Liwang, Nanjing Agricultural University, Nanjing(China),College of Horticulture
中国人. 采用SRAP分子标记技术,对国内外70份茄子材料的遗传多样性和群体结构进行了分析。结果表明:21对引物共扩增出375条条带,平均每条引物扩增出17.8条条带,其中多态性条带共72个,多态性比例为19.2%,各种质间遗传相似系数变幅为0.388 9~0.958 3,平均值为0.705 3,表明参试材料间存在着一定的遗传差异,但遗传基础比较狭窄。群体结构分析则得出84.29%的材料遗传结构相对比较单一,仅15.71%拥有复杂的遗传背景。从材料划分类群来看,遗传多样性和群体结构分析结果基本一致,只有少数遗传背景复杂的材料类群划分有些差异。
显示更多 [+] 显示较少 [-]英语. The genetic diversity and population structure among 70 eggplant(Solanum melongena L.)materials from China and abroad were analyzed using the SRAP(sequence-related amplified polymorphism)molecular marker.The results showed that 375 distinct PCR bands were amplified using 21 primers,and 17.8 bands per primer were amplified.72 bands were polymorphic,and the polymorphic rate was 19.2%.The genetic similarity coefficients among those germplasm ranged in 0.388 9-0.958 3,with the average of 0.705 3,which suggested that there was some genetic diversity among the oat germplasm,but the genetic basis was narrow.The population structure analysis revealed 84.29% eggplant were with single genetic components and 15.71% with complicated genetic components.The results of genetic diversity and population structure analysis were the same,however a few complicated ancestors revealed some differences.
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