Choudhary, A K and Sultana, R and Vales, M I and Saxena, K B (2017) Integrated physiological and molecular approaches to improvement of abiotic stress tolerance in two pulse crops of the semi-arid tropics. The Crop Journal. pp. 1-16. ISSN 22145141
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Abstract
Chickpea (Cicer arietinum L.) and pigeonpea [Cajanus cajan L. (Millsp.)] play an important role in mitigating protein malnutrition for millions of poor vegetarians living in regions of the semi-arid tropics. Abiotic stresses such as excess and limited soil moisture (water-logging and drought), heat and chilling (high and low temperature stresses), soil salinity, and acidity are major yield constraints, as these two crops are grown mostly under rainfed conditions in risk-prone marginal and degraded lands with few or no inputs. Losses due to such stresses vary from 30% to 100% depending on their severity. The literature abounds in basic information concerning screening techniques, physiological mechanisms, and genetics of traits associated with resistance/tolerance to abiotic stresses in these two crops. However, the final outcome in terms of resistant/tolerant varieties has been far from satisfactory. This situation calls for improving selection efficiency through precise phenotyping and genotyping under high-throughput controlled conditions using modern tools of genomics. In this review, we suggest that an integrated approach combining advances from genetics, physiology, and biotechnology needs to be used for higher precision and efficiency of breeding programs aimed at improving abiotic stress tolerance in both chickpea and pigeonpea.
| Item Type: | Article |
|---|---|
| Divisions: | Research Program : Genetic Gains |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Abiotic stresses; Chickpea; Genomics; Genotyping; Integrated approach; Phenotyping; Pigeonpea; Breeding strategies; Molecular breeding; Pre-breeding; Genomic resources; Abiotic stress tolerance; Drought stress |
| Subjects: | Others > Molecular Biology Others > Semi-Arid Tropics Mandate crops > Chickpea Mandate crops > Pigeonpea Others > Genetics and Genomics Others > Plant Physiology Others > Legume Crops |
| Depositing User: | Mr Ramesh K |
| Date Deposited: | 11 Dec 2017 04:55 |
| Last Modified: | 03 Apr 2018 07:43 |
| URI: | http://oar.icrisat.org/id/eprint/10346 |
| Official URL: | http://dx.doi.org/10.1016/j.cj.2017.11.002 |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | UNSPECIFIED |
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