Abstract：
:Genetic diversity among 35 rice accessions, which included 19 landraces, 9 cultivars and 7 wild relatives, was investigated by using microsatellite (SSR) markers distributed across the rice genome. The mean number of alleles per locus was 4.86, showing 95.2% polymorphism and an average polymorphism information content of 0.707. Cluster analysis based on microsatellite allelic diversity clearly demarcated the landraces, cultivars and wild relatives into different groups. The allelic richness computed for the clusters indicated that genetic diversity was the highest among wild relatives (0.436), followed by landraces (0.356), and the lowest for cultivars. Allelic variability among the SSR markers was high enough to categorize cultivars, landraces and wild relatives of the rice germplasm, and to catalogue the genetic variability observed for future use. The results also suggested the necessity to introgress genes from landraces and wild relatives into cultivars, for cultivar improvement.
journal_name
J Appl Genetjournal_title
Journal of applied geneticsauthors
Ram SG,Thiruvengadam V,Vinod KKdoi
10.1007/BF03195230subject
Has Abstractpub_date
2007-01-01 00:00:00pages
337-45issue
4eissn
1234-1983issn
2190-3883pii
411journal_volume
48pub_type
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