Recent breeding programs enhanced genetic diversity in both desi and kabuli varieties of chickpea (Cicer arietinum L.)

Thudi, M and Chitikineni, A and Liu, X and He, W and Roorkiwal, M and Yang, W and Jian, J and Doddamani, D and Gaur, P M and Rathore, A and Samineni, S and Saxena, R K and Xu, D and Singh, N P and Chaturvedi, S K and Zhang, G and Wang, J and Datta, S K and Xu, X and Varshney, R K (2016) Recent breeding programs enhanced genetic diversity in both desi and kabuli varieties of chickpea (Cicer arietinum L.). Scientific Reports, 6 (38636). pp. 1-10. ISSN 2045-2322

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Abstract

In order to understand the impact of breeding on genetic diversity and gain insights into temporal trends in diversity in chickpea, a set of 100 chickpea varieties released in 14 countries between 1948 and 2012 were re-sequenced. For analysis, the re-sequencing data for 29 varieties available from an earlier study was also included. Copy number variations and presence absence variations identified in the present study have potential to drive phenotypic variations for trait improvement. Re-sequencing of a large number of varieties has provided opportunities to inspect the genetic and genomic changes reflecting the history of breeding, which we consider as breeding signatures and the selected loci may provide targets for crop improvement. Our study also reports enhanced diversity in both desi and kabuli varieties as a result of recent chickpea breeding efforts. The current study will aid the explicit efforts to breed for local adaptation in the context of anticipated climate changes.

Item Type: Article
Divisions: Research Program : Genetic Gains
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: Genetic relationships, Genome diversity trends, chickpea, Breeding programs
Subjects: Others > Plant Breeding
Mandate crops > Chickpea
Others > Genetics and Genomics
Depositing User: Mr Ramesh K
Date Deposited: 08 May 2017 08:36
Last Modified: 17 May 2017 10:29
URI: http://oar.icrisat.org/id/eprint/9990
Official URL: http://dx.doi.org/10.1038/srep38636
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: This work has been undertaken as part of the CGIAR Research Program on Genetic Gains, ICRISAT, India. ICRISAT is a member of the CGIAR Consortium.
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