Assessment of genetic diversity and population structure in mungbean [Vigna radiata (L.) Wilczek] local collections and prominent varieties using SSR markers

Abstract

Mungbean (Vigna radiata L.) is an important legume crop in South and Southeast Asia. Assessment of genetic diversity is vital for species diversity conservation, and crop improvement programs. The present study assessed the genetic diversity of 87 germplasm collections, including 12 released varieties using SSR markers. Of the 35 markers screened, 19 were informative, generating 35 alleles with an average of 4.11 alleles per locus. PIC values ranged from 0.24 to 0.75 and expected heterozygosity averaged 0.47 for local collections and 0.41 for released varieties. Genetic variation was primarily within populations (91.3%), with low population divergence (Fst = 0.12). Local collections were more genetically diverse, offering valuable resources for future breeding programs.