Genetic diversity and population structure among 133 elite genotypes of sugarcane (Saccharum spp.) for use as parents in sugarcane varietal improvement.

ABSTRACT: A measure of genetic diversity of genotypes to be used as parents is imperative to use them prudently in crop improvement. In this study, genetic diversity and population structure of 133 sugarcane hybrid derivatives were quantified using 20 sequence-tagged microsatellite sites (STMS) primers. The number of alleles ranged from 9 to 27 with the average of 17.95 alleles per primer, while the polymorphism information content values of the primers ranged from 0.29 to 0.78. Cophenetic correlation coefficient value observed as 0.84 by STMS markers revealed that the cluster result was acceptable for the calculation of genetic similarity matrix. Principal component analysis showed that 133 genotypes fell in two groups, first and second components associated 8.34 and 3.22% with eigen values of 5.61

SUBMITTER: Sarath Padmanabhan TS 

PROVIDER: S-EPMC6060222 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature