Genetic Diversity of Blaxt Resistance Donors and Selected Korean Rice Cultivars Based on Simple Siquence Repeats
2003
Kim, H.J. | Ahn, S.N. (Daejeon 305-764, Republic of Korea) | Han, S.S. | Choi, H.C. | Hwang, H.G. (RDA, Suwon 441-100, Republic of Korea) | Kwon, S.J. (sUWON 441-707, Republic of Korea)
Diversity and relatedness of 64 rice accessions were evaluated using 85 simple sequence repeats (SSRs) markers. These 64 accessions represent a set of international and Korean blast differential cultivars, a set of blast monogenic lines. donors of blast resistance, and Korean elite cultivars. Eighty-five microsatellite markers representing 85 loci in the rice genome were evaluated and 84 detected polymorphic among the 64 cultivars. The total number of polymorphic markers was 460 alleles with a mean of 5.5 alleles per primer. The polymorphism information content (PIC) value ranged from 0.0 to 0.867, with an average of 0.498. The 64 cultivars were classified into four groups by cluster analysis based on Nei's genetic distances. The relationships among accessions depicted by cluster analysis were consistent with those of the previous studies where japonica and indica subspecies formed a different cluster.
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