Relative genetic contributions of ancestral lines to Indian mungbean [Vigna radiata (L.) Wilczek] cultivars based on coefficient of parentage analysis

Gupta, S. and Kumar, S. and Singh, B. B. (2004) Relative genetic contributions of ancestral lines to Indian mungbean [Vigna radiata (L.) Wilczek] cultivars based on coefficient of parentage analysis. Indian Journal of Genetics and Plant Breeding, 64 (4). pp. 299-302.

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Abstract

Coefficient of parentage (COP) analysis was performed to identify the ancestor genotypes which contributed the most to Indian mungbean [Vigna radiafa (L.) Wilczek] cultivars, as prediction of the width of genetic base. From the analyses it was evident that 93 mungbean cutivars could be traced back to 71 ancestors. The ancestor genotypes T 1, T 49, T 2, SR 2, G 65 and Madhira Mung were those which contributed the most to the current mungbean varieties. A total of 24 similarity groups were formed and mean COP was estimated to 0.04. T1 contributed as high as 17% of the genetic base of the released cultivars. Extensive and repetitive use of superior genotypes with common ancestors explained why the genetic base of released varieties is narrow. The integration of exotic and alien germplasm is paramount for broaden the genetic base of cultivated germplasm of mungbean.

Item Type: Article
Uncontrolled Keywords: Mungbean, genetic diversity, coefficient of parentage, genetic base
Author Affiliation: Indian Institute of Pulses Research, Kanpur 208 024
Subjects: Crop Improvement > Genetics/Genomics
Divisions: Other Crops
Depositing User: Mr Siva Shankar
Date Deposited: 12 Sep 2012 04:18
Last Modified: 12 Sep 2012 04:19
URI: http://eprints.icrisat.ac.in/id/eprint/7835

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