The AVRDC – The World Vegetable Center mungbean (Vigna radiata) core and mini core collections

Schafleitner, R and Nair, R M and Rathore, A and Wang, Y W and Lin, C and Chu, S H and Lin, P Y and Chang, J C and Ebert, A W (2015) The AVRDC – The World Vegetable Center mungbean (Vigna radiata) core and mini core collections. BMC Genomics, 16 (344). 01-11. ISSN 1471-2164

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Abstract

Background Large ex situ germplasm collections generally harbor a wide range of crop diversity. AVRDC – The World Vegetable Center is holding in trust the world’s second largest mungbean (Vigna radiata) germplasm collection with more than 6,700 accessions. Screening large collections for traits of interest is laborious and expensive. To enhance the access of breeders to the diversity of the crop, mungbean core and mini core collections have been established. Results The core collection of 1,481 entries has been built by random selection of 20% of the accessions after geographical stratification and subsequent cluster analysis of eight phenotypic descriptors in the whole collection. Summary statistics, especially the low differences of means, equal variance of the traits in both the whole and core collection and the visual inspection of quantile-quantile plots comparing the variation of phenotypic traits present in both collections indicated that the core collection well represented the pattern of diversity of the whole collection. The core collection was genotyped with 20 simple sequence repeat markers and a mini core set of 289 accessions was selected, which depicted the allele and genotype diversity of the core collection. Conclusions The mungbean core and mini core collections plus their phenotypic and genotypic data are available for distribution to breeders. It is expected that these collections will enhance the access to biodiverse mungbean germplasm for breeding.

Item Type: Article
Divisions: RP-Grain Legumes
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: Mungbean, Vigna radiata, Germplasm collection, Breeding
Subjects: Others > Genetics and Genomics
Depositing User: Mr Ramesh K
Date Deposited: 04 May 2015 11:27
Last Modified: 06 Aug 2015 08:32
URI: http://oar.icrisat.org/id/eprint/8699
Official URL: http://dx.doi.org/10.1186/s12864-015-1556-7
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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