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

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. T...

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Bibliographic Details
Published in:Plant breeding 2019-08, Vol.138 (4), p.389-400
Main Authors: Gaur, Pooran M., Samineni, Srinivasan, Thudi, Mahendar, Tripathi, Shailesh, Sajja, Sobhan B., Jayalakshmi, Veera, Mannur, Durdundappa M., Vijayakumar, Adiveppa G., Ganga Rao, Nadigatla V. P. R., Ojiewo, Chris, Fikre, Asnake, Kimurto, Paul, Kileo, Robert O., Girma, Nigusie, Chaturvedi, Sushil K., Varshney, Rajeev K., Dixit, Girish P., Link, Wolfgang
Format: Article
Language:English
Subjects:
Adaptation
Breeding
Chickpeas
Cicer arietinum
climate change
Crop yield
Crops
Cultivars
Drought
Drought resistance
Dry season
early maturity
Heat
Heat stress
Heat tolerance
high temperature
Legumes
Moisture stress
molecular breeding
Quantitative trait loci
Rainy season
Recombination
Residual soils
Seasons
Soil moisture
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Summary: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.
ISSN:0179-9541
1439-0523
DOI:10.1111/pbr.12641