Molecular identification of genetically distinct accessions in the USDA chickpea core collection

Varshney, R K and Coyne, C J and Swamy, P and Hoisington, D A (2008) Molecular identification of genetically distinct accessions in the USDA chickpea core collection. Pisum Genetics, 39. pp. 32-33. ISSN 1320-2510

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Abstract

Knowledge of the molecular genetic variation of the accessions of core collections will be important for their efficient use in breeding programs, and for conservation purposes. The present study was undertaken for genotyping the part of the USDA chickpea core collection (Hannan et al 1994) with 20 microsatellite or simple sequence repeat (SSR) markers. In addition to understand the molecular diversity in the core collection, the genetic relationship was studied. A total of 376 accessions from the USDA chickpea core collection were genotyped. Twenty SSR markers revealed a total of 388 alleles among the 376 accessions. In the USDA core collection, the shared allele frequency (SAF) varied from 7.5% to 47.5% with an average of 21.6%. In the present study, the structure of the population was determined by using K=4 based on model-based (Bayesian) clustering algorithm.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Mandate crops > Chickpea
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 14 Oct 2011 11:01
Last Modified: 04 Oct 2012 10:53
URI: http://oar.icrisat.org/id/eprint/2539
Official URL:
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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