Genetic Diversity of Chinese Maize OPVs Determined by SSR Analysis of bulk Samples
The narrow genetic background is the first constraint for maize (Zea mays L.) breeding efforts in China. The Chinese corn belt is a very diversified region in terms of geographical mega-environments, climatic conditions, agroecosystems, biological diversity, and the remarkable diversity of land varieties which remin to be explored for hybrid maize breeding efforts. In the study, a bulk sampling strategy was adopted to analyze the genetic diversity of 44 OPVs collected from Henan, Guangxi, Shandong, Shaanxi and Jilin provinces by 70 pairs of SSR primers. The cluster analysis using the UPGMA method based on the genetic similarities of 44 OPVs showed that 6 OPVs collected from Henan province were clustered together. Eleven of the 15 OPVs from Guangxi were clustered together. Four OPVs from Shanxi province were all dispersed in clusters of other provinces. Five OPVs from Shandong province were clustered together, another 4 OPVs were dispersed. Six OPVs which came from Jilin province were clustered together, the other 4 OPVs were dispersed. The results of the research indicated that 200 alleles were enough to cluster the 44 OPVs surveyed in the current study.
Maize Genetic diversity Bulk sampling SSR
Xue Liu Mingshun Li Xinhai Li Shihuang Zhang
AMBIONET-China Lab, Maize Research Center, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
国际会议
第九届亚洲玉米大会(the Ninth Asian Regional Maize Workshop)
北京
英文
31-35
2005-09-05（万方平台首次上网日期，不代表论文的发表时间）