Use of simple sequence repeat markers for estimation of genetic diversity in coconut (Cocos nucifera L) germplasm accessions

Simple Sequence Repeat (SSR) markers were used to determine the genetic relationship among 33 coconut germplasm accessions collected from different geographical regions. Wide range of Jaccard's similarity coefficient (0.00–0.86) reflects the informativeness of the SSR markers. Dwarf and intermediate accessions showed highest similarity among them. The tall accessions belonging to South East Asia, South Asia and South Pacific were clustered based on their geographical regions, but dwarf and intermediate accessions were clustered separately. Clustering of accessions belonging to Atlantic and America revealed the spread of coconut from Far East to South Pacific. Principal coordinate plot and UPGMA analyses formed similar groups of the accessions.