Phylogenetic Relationships in Genus Arachis Based
on SSR and AFLP Markers
TANG Rong-hua;ZHUANG Wei-jian;GAO Guo-qing;HE Liang-qiong;HAN Zhu-qiang;SHAN Shi-hua;JIANG Jing;LI Yang-rui
【期刊名称】《农业科学学报（英文版）》 【年(卷),期】2008(007)004
【摘要】Fourteen wild species of different sections in the genus Arachis and 24 accessions of the AABB allotetraploid A. hypogaea (cultivated peanut) from several countries which belong to different botanical varieties, were analyzed by SSR and AFLP marker systems. The assay-units per system needed to distinguish among all the tested accessions were at least five for SSR or two for AFLP. The genetic distance detected by the SSR markers ranged from 0.09 to 0.95, and the mean was 0.73; and the genetic distance detected by the AFLP markers ranged from 0.01 to 0.79 with an average of 0.42. All the tested peanut SSR primer pairs were multilocus ones, and the amplified fragments per SSR marker in each peanut genome ranged from 2 to 15 with the mean of 4.77. The peanut cultivars were closely related to each other, and shared a large numbers of SSR and AFLP fragments. In contrast, the species in the genus Arachis shared few fragments. The results indicated that the cultivated peanut (A. hypogaea L.) varieties could be partitioned into two main groups and four subgroups at the molecular level, and that A.
Phylogenetic Relationships in Genus Arachis Based on SSR and AFLP Markers
