Genetic survey of 10 Indian coconut landraces by simple sequence repeats (SSRs)

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dc.contributor.authorRajesh, M.K.
dc.contributor.authorArunachalam, V.
dc.contributor.authorNagarajan, P.
dc.contributor.authorLebrun, P.
dc.contributor.authorSamsudeen, K.
dc.contributor.authorThamban, C.
dc.date.accessioned2014-06-20T05:54:45Z
dc.date.available2014-06-20T05:54:45Z
dc.date.issued2008
dc.description.abstractA rich genetic diversity of coconut exists in farmer’s fields, which represent valuable genetic resource for breeding. The study was conducted to assess the pattern of diversity in 102 coconut palms representing 10 landraces from 3 coconut-growing communities of India using 14 simple sequence repeat (SSR) markers. A total of 90 alleles were detected with an average of 6.42 alleles per locus and an average polymorphism information content of 0.61. Expected heterozygosity (He) was highest for the two tall landraces from Pallikkara community, while the least heterozygosity was observed for the dwarf coconut landraces from Vayalar community. Mean fixation index (FST) of 0.42 indicates a high level of population differentiation. A low gene flow (Nm) of 0.37 was observed. Based on molecular data, genetic similarities were calculated. The unweighted pair group method with arithmetic averages (UPGMA) cluster analysis grouped the landraces according to their geographical locations and breeding behaviour. The practical implications of this study in farmer participatory evaluation and conservation of coconut genetic resources are highlighted.en_US
dc.identifier.citationScientia Horticulturae 118 (2008) 282–287en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3148
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectCoconuten_US
dc.subjectDiversityen_US
dc.subjectLandracesen_US
dc.subjectSSRen_US
dc.titleGenetic survey of 10 Indian coconut landraces by simple sequence repeats (SSRs)en_US
dc.typeArticleen_US

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