Improving Chickpea Genetic Gain Under Rising Drought and Heat Stress Using Breeding Approaches and Modern Technologies

Uday Chand Jha, Harsh Nayyar, Rintu Jha, P.K. Singh, Eric von Wettberg, Pronob J. Paul, Ajaz A. Lone, Srinivasan Samineni, Kadambot Siddique

Research output: Chapter in Book/Conference paperChapterpeer-review

Abstract

Increasing grain legume production, particularly for chickpea, will provide essential “plant-based dietary protein” and other micronutrients under the changing global climate. Drought and terminal heat stress limit plant growth and negatively affect various phenological events, causing severe yield losses. Among various strategies for improving stress tolerance, the judicious utilization of available genetic variation in the chickpea gene pool could minimize the adverse effects of drought and heat stress, sustaining chickpea yields. In addition, advancements in chickpea genomic resources, from molecular markers, namely, SSR, SNP, and INDELs and tools for association genetics, RNA-seq, to the availability of chickpea genome sequences and efforts of global chickpea germplasm resequencing allow us to identify loci and haplotypes contributing to drought and heat tolerance across the whole genome. Thus, molecular markers have enabled the successful transfer of drought-tolerant traits to elite chickpea cultivars using marker-assisted and haplotype-based breeding approaches. Likewise, the role of drought- and heat-responsive proteins and metabolites could significantly improve our understanding of the molecular mechanisms of drought and heat tolerance in chickpea via proteomics and metabolomics. Moreover, emerging novel breeding technologies (e.g., genomic selection, speed breeding, and genome editing) could enhance the necessary genetic gain to feed the increasing global population under an abruptly changing global climate.
Original languageEnglish
Title of host publicationDeveloping Climate Resilient Grain and Forage Legumes
EditorsUday C Jha, Harsh Nayyar, Shiv Kumar Agrawal, Kadambot H.M. Siddique
Place of PublicationSingapore
PublisherCRC Press
Chapter1
Pages1-25
Number of pages25
ISBN (Electronic)978-981-16-9848-4
ISBN (Print)9789811698477
DOIs
Publication statusPublished - 1 Jan 2022

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