Integrated breeding approaches for improving drought and heat adaptation in chickpea (Cicer arietinum L.)

Gaur, P M and Samineni, S and Thudi, M and Tripathi, S and Sajja, S and Jayalakshmi, V and Mannur, D M and Vijayakumar, A G and Ganga Rao, N V P R and Ojiewo, C O and Fikre, A and Kimurto, P and Kileo, R O and Girma, N and Chaturvedi, S K and Varshney, R K and Dixit, G P and Link, W (2019) Integrated breeding approaches for improving drought and heat adaptation in chickpea (Cicer arietinum L.). Plant Breeding (TSI). pp. 1-12. ISSN 01799541

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Abstract

Chickpea (Cicer arietinum L.) is a dry season food legume largely grown on residual soil moisture after the rainy season. The crop often experiences moisture stress towards end of the crop season (terminal drought). The crop may also face heat stress at the reproductive stage if sowing is delayed. The breeding approaches for improving adaptation to these stresses include the development of varieties with early maturity and enhanced abiotic stress tolerance. Several varieties with improved drought tolerance have been developed by selecting for grain yield under moisture stress conditions. Similarly, selection for pod set in the crop subjected to heat stress during reproductive stage has helped in the development of heat‐tolerant varieties. A genomic region, called QTL‐hotspot, controlling several drought tolerance‐related traits has been introgressed into several popular cultivars using marker‐assisted backcrossing (MABC), and introgression lines giving significantly higher yield than the popular cultivars have been identified. Multiparent advanced generation intercross (MAGIC) approach has been found promising in enhancing genetic recombination and developing lines with enhanced tolerance to terminal drought and heat stresses.

Item Type:	Article
Divisions:	Research Program : Asia Research Program : East & Southern Africa Research Program : Genetic Gains
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Genomics assisted breeding, integrated breeding, drought and heat adaptation, chickpea, Cicer arietinum, climate change, early maturity, high temperature, moisture stress, molecular breeding, Tanzania, Ethiopia, heat tolerance, drought tolerance, early phenology, heat stress, heat tolerance
Subjects:	Others > Climate Adaptation Others > Abiotic Stress Others > Crop Modelling Others > Crop Improvement Others > Drought Tolerance Others > Plant Breeding Others > Crop Physiology Others > Tanzania Mandate crops > Chickpea Others > Genetics and Genomics Others > Climate Change Others > African Agriculture Others > Legume Crops Others > Sub-Saharan Africa Others > Ethiopia
Depositing User:	Mr Ramesh K
Date Deposited:	24 Sep 2018 09:04
Last Modified:	16 Mar 2020 05:16
URI:	http://oar.icrisat.org/id/eprint/10871
Official URL:	http://dx.doi.org/10.1111/pbr.12641
Projects:	UNSPECIFIED
Funders:	CGIAR Generation Challenge Program; National Food Security Mission of the Government of India; Bill & Melinda Gates Foundation
Acknowledgement:	Authors are thankful to CGIAR Generation Challenge Program, Bill & Melinda Gates Foundation (Tropical Legumes I, II and III projects) and National Food Security Mission of the Government of India for funding research mentioned in this article
Links:	Google Scholar

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