2026-07-28T20:13:58Z https://meral.edu.mm/oai

oai:meral.edu.mm:recid/176 2022-03-24T23:12:25Z 1582963567848:1582969313627 user-yau

"Sharei" Weeding Collection Found in Ganghwa Island, Maintain a Unique Population Structure Moe Kyaw Thu Hao Cui Jong-Wook Chung Sang-Bog Ra Soon-Wook Kwon Yong-Jin Park A total of 29 simple sequence repeat (SSR) markers were used to analyze the genetic diversity and population structure of Korea weedy rice (Oryza sativa L.). A total of 243 alleles were detected with an average of 8.4 per locus among 114 rice accessions. Major allele frequency (MAF) ranged from 0.22 to 0.98 and the average is 0.52. The averages of gene diversity and polymorphic information content (PIC) values were 0.61 and 0.57, with a range from 0.04 (SSS) to 0.87 (RM241) and from 0.04 (SSS) to 0.86 (RM241), respectively. In cluster analysis, 90.4% of accessions (shared > 70% membership with one of five clusters) were classified as members of each cluster, whereas 9.6% accessions showed evidence of mixed population ancestry. The Korea weedy rice, ‘Sharei rice’ collected from isolated island, ‘Ganghwa’ appears to be a very primitive rice cultivar for being separately grouped from indica and japonica. It might have changed its genetic background along with adaptation to such an isolated region. This result showed that the collected weedy rice accessions have valuable sources of gene diversity for future rice improvement breeding programs. 2011-09 http://hdl.handle.net/20.500.12678/0000000176 https://meral.edu.mm/records/176