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将AFLP标记与表型性状相结合,分析了来自川渝地区的两个亚种四个类型的43份主要花生种质资源和推广品种的遗传多样性。结果表明,两种方法都能有效地检测到该生态区内花生种质间的遗传多样性,珍珠豆型内和龙生型内品种间距离较小,而普通型内和中间型内品种间距离较大;交替开花亚种的龙生型和普通型品系间距离最近,而珍珠豆型与其它三个类型间距离较远;主要推广品种间遗传多样性匮乏。聚类结果也基本一致,都能将珍珠豆型与其他三大类型区分开,而龙生型、普通型和中间型在聚类中都有交叉情况。但在较为细小的类群划分上,两种方法仍有较大差异。
Combining AFLP markers with phenotypic traits, we analyzed the genetic diversity of 43 main peanut germplasm resources and popularized varieties from four types of two subspecies from Sichuan and Chongqing. The results showed that both methods could effectively detect the genetic diversity of peanut germplasm in this ecoregion. The distance between pea and pea varieties was smaller, The distance between them is greater; the distance between the dragon-type and the common type of alternate flowering subspecies is the closest, while the distance between the pearl-bean type and the other three types is far; the genetic diversity among the main popularized species is deficient. The result of clustering is also basically the same, and all three types of pearl bean can be distinguished from each other, while the dragon type, the common type and the intermediate type all have crossover in the cluster. However, in the finer taxonomic grouping, the two methods are still quite different.