Impact of heat and drought stresses on grain nutrient content in chickpea: Genome-wide marker-trait associations for protein, Fe and Zn

Samineni, S and Mahendrakar, M D and shankar, N and Hotti, A and Chand, U and Rathore, A and Gaur, P M (2021) Impact of heat and drought stresses on grain nutrient content in chickpea: Genome-wide marker-trait associations for protein, Fe and Zn. Environmental and Experimental Botany, 194. pp. 1-16. ISSN 0098-8472

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Abstract

Chickpea is a cheap source of protein and micronutrients to the poor and vegetarian population living in south- Asia and sub-Saharan Africa. Due to changes in climatic conditions and cropping systems, the crop is being exposed to severe drought and heat stress during its reproductive period, which leads to significant yield losses and fluctuations in grain nutrient accumulation. The study was conducted with 140 diverse genotypes under nonstress, drought, and heat stress conditions to estimate their effects on grain nutrient (protein, Fe and Zn) contents and identify the marker-trait associations. Analysis of variance revealed highly significant differences among genotypes for nutrient content under respective planting conditions. The seed yield was negatively associated with the grain Fe (r =

Item Type:	Article
Divisions:	Research Program : Asia
CRP:	CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
Uncontrolled Keywords:	Chickpea, Fe, Zn, Protein, GWAS, PCA, Cluster
Subjects:	Others > Plant Nutrition Mandate crops > Chickpea Others > Food and Nutrition
Depositing User:	Mr Arun S
Date Deposited:	16 Mar 2022 08:17
Last Modified:	16 Mar 2022 08:17
URI:	http://oar.icrisat.org/id/eprint/11966
Official URL:	https://doi.org/10.1016/j.envexpbot.2021.104688
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	Authors are thankful to all the team members involved in the entire field operations. We also would like to acknowledge Charles Renard Analytical Laboratory, ICRISAT for analyzing grain iron and zinc contents and RK labs Junagadh, Gujarat, India for grain protein content.
Links:	Google Scholar

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