Vol. 11, Issue 4 (2022)

Author(s):
Bodeddula Jayasankar Reddy, Sahanob Nath, Sumita Nag, Moumita Chakroborty, Lakshmi Hijam, Manoj Kanti Debnath, Suvendu Kumar Roy, Satyajit Hembram and Rupsanatan Mandal

Abstract:
Molecular marker association with morphological traits have crucial role for heredity enhancement of local cultivars in different crops. In the present investigation, local potato cultivars were characterized and evaluated using SSRs markers and quantitative traits to recover the heredity divergence and the genetic components were estimated. All seven SSRs were showed 100% polymorphism with 3.71 allele per locus in the study. Based on different marker efficiency parameters, SSR0707 and STI0012 were most efficient primer to distinguish the local potato cultivars. The results of allelic diversity, genetic differentiation and AMOVA indicated that the genetic variability is greater within the population of potato cultivars. All the genotypes were grouped into three cluster as revealed by the Dendrogram utilizing SSRs. Different genetic components and principal component analysis using nine morphological traits suggested that average tuber weight, average tuber length, number of tubers per plant and plant height are potential traits for early generation selection by breeder to develop high tuber yielding potato. Total two phenotypic groups were found based on average silhouette method using nine quantitative traits in the current population. The knowledge acquired from this study, will be helpful for genetic improvement of local potato cultivars by plant breeders.