Genetic diversity and population structure in onion (Allium cepa L.) accessions based on morphological and molecular approaches.

ABSTRACT: Bulb onion is cultivated throughout the world for consumption as vegetable and processed products. Although having high global demand and economic significance, information about genetic diversity and genomic resources is limited. This study investigated the variability of 96 accessions representing seventeen countries. Out of 145 SSR markers, 62 SSRs amplified and 15 SSRs gave consistent polymorphic bands. Fifty three alleles were detected with an average of 3.533 alleles per locus. PIC value ranged from 0.219 (ACM463) to 0.715 (ACM091). Structure and cluster analysis grouped the onion accessions into two clusters. Discriminant analysis of principal components, a tool that maximizes variation between groups while minimizing that within groups, assorted accessions into five clusters. Analy

SUBMITTER: Lyngkhoi F 

PROVIDER: S-EPMC8639984 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature