SSR Evidence for Taxonomic Position of Weedy Rice‘Ludao’

作者：Xinghua Wei, Zhirong Yang, Lan Dong, Hanyong Yu, Yiping Wang, Xiaoping Yuan, Tang Shengxiang · 年份：2004 · 被引用次数：5 · 研究领域：GABA and Rice Research、Rice Cultivation and Yield Improvement、Genetic Mapping and Diversity in Plants and Animals

Ludao is a type of weedy rice grown naturally in field of Lianyungang region (34°3334°46N), JiangsuProvince, China. Thirty SSR primers in rice were used for the study on the genetic variation in Ludao, cultivated and wildrice. The results showed that Ludao shared common bands in 14 SSR markers with 4 accessions of the type of deep-waterrice originated from Anhui Province, showed 10 japonica-specific and 2 indica-specific SSR loci, and had a common wildrice-specific allele at RM25 locus. One locus of RM82 was found only in Ludao, deep-water rice, and common wild rice (O.rufipogon Griff). Both UPGMA clustering and principal component analysis indicated Ludao was most close to the type ofdeep-water rice from Anhui Province, and quite distinct from Taihu japonica rice. It is concluded that Ludao may be aprimitive japonica rice of O.sativa L., which remained more allele loci of common wild rice (O.rufipogon Griff).