Analysis of Genetic Variation Among Popcorn Inbred Lines by SSR Markers
2011
Jang, J.S., Maize Experiment Station, Kangwon Agricultural Research and Extension Services, Hongcheon, Republic of Korea | Chang, E.H., Maize Experiment Station, Kangwon Agricultural Research and Extension Services, Hongcheon, Republic of Korea | Sa, K.J., Kangwon National University, Chuncheon, Republic of Korea | Kim, J.H., Kangwon National University, Chuncheon, Republic of Korea | Lee, J.K., Kangwon National University, Chuncheon, Republic of Korea
Knowledge of genetic diversity and genetic relationships among inbred lines gives a significant impact on the selection of parental lines for hybrid maize varieties. Genetic diversity and genetic relationships among 86 popcorn inbred lines were analyzed using 50 SSR markers distributed over the whole genome. A total of 256 alleles were identified at all the SSR loci with an average of 5.1 and a range between two and sixteen per locus. The gene diversity values varied from 0.21 to 0.831 with an average of 0.579. The cluster tree generated using the described SSR markers recognized three major groups at 35.8% genetic similarity. Groups Ⅰ, Ⅱ, Ⅲ respectively included 40, 39 and 7 inbred lines. The present study indicates that the SSR markers chosen for this analysis are effective for the assessment of genetic diversity and genetic relationships among 86 popcorn inbred lines in Korea.
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