Impact of Genomics on Chickpea Breeding

Samineni, S and Thudi, M and Sajja, S and Varshney, R K and Gaur, P M (2017) Impact of Genomics on Chickpea Breeding. In: The Chickpea Genome. Compendium of Plant Genomes book series (CPG) . Springer, pp. 125-134. ISBN 978-3-319-66115-5

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Chickpea is an economical source of vegetable protein for the poor living in the semi-arid regions globally. As a consequence of climate change and increasing climate variability, the incidences of drought and heat stresses and severity of some diseases, such as dry root rot and collar rot, have increased in chickpea crop, resulting in poor and unstable yields. By improving the efficiency of crop breeding programs, climate resilient varieties with traits desired by the farmers, industries and consumers can be developed more rapidly. Excellent progress has been made in the development of genomic resources for chickpea in the recent past. Several national and international chickpea breeding programs have started utilizing these genomic resources and tools for genetic improvement of complex traits. One of such examples includes the introgression of “QTL-hotspot” containing quantitative trait loci (QTLs) for several drought tolerance-related traits, including root traits, through marker-assisted backcrossing (MABC) for enhancing drought tolerance in popular cultivars. Several drought-tolerant introgression lines with higher yield as compared to the popular cultivars have been identified. Multi-parent advanced generation intercross (MAGIC) populations developed from using 8 parents created large genetic diversity consequently several promising lines. Marker-assisted recurrent selection (MARS) has also been explored for yield improvement in chickpea. Development of diagnostic markers or the identification of candidate genes for several traits is essential for greater use of genomic resources in chickpea improvement.

Item Type: Book Section
Divisions: Research Program : Asia
Research Program : Genetic Gains
Series Name: Compendium of Plant Genomes book series (CPG)
Uncontrolled Keywords: Genomics, Chickpea Breeding, crop breeding programs, genomic resources, QTL-hotspot, QTLs, drought tolerance, MAGIC populations, crop yield improvement, chickpea improvement
Subjects: Others > Plant Genetics
Others > Plant Breeding
Mandate crops > Chickpea
Others > Genetics and Genomics
Depositing User: Mr Ramesh K
Date Deposited: 04 Mar 2018 07:41
Last Modified: 12 Mar 2018 10:07
Acknowledgement: UNSPECIFIED
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