Genetic relationships existing amongst 60 arecanut accessions were assessed by employing nine polymorphic microsatellite primers.
A total of 42 alleles were detected, with an average of 4.66 alleles per locus. The PIC values ranged from 0.50 to 0.78, with an average
of 0.69. Expected heterozygosity (He) was highest for the exotic accessions (0.31), moderate for Konkan- I and II accessions, while the
least heterozygosity was observed for the accessions from Maidhan tract (Karnataka) and Andaman and Nicobar Islands. Mean fxation
index (FST) of 0.28 indicated a high level of population diﬀerentiation. The UPGMA cluster analysis grouped the accessions in to two
major clusters- the indigenous Konkan accessions clustered separately in a distinct cluster along with Maidhan accessions. In the second
major cluster, indigenous accessions from North East India formed a unique sub-cluster, while accessions from Andaman and Nicobar
Islands were grouped with exotic accessions.
Keywords: Accessions, Areca catechu, Genetic diversity, Microsatellite/SSR markers.
Article DOI: 10.31742/ISGPB.81.4.16
Print ISSN: 0019-5200
Online ISSN: 0975-6906
B. G. Bharath, K. S. Ananda, N. R. Nagaraja and M. K. Rajesh info_circle