Abstract
The online version contains supplementary material available at 10.1007/s11032-021-01264-7.
Highlights
Wheat (Triticum aestivum L.) is grown in the tropical and sub-tropical regions of the world plagued with various abiotic stresses (Gupta et al 2020)
The QTL data used for conducting meta-QTL (MQTL) analysis in the present study were largely similar to those used in two previous studies (Acuna-Galindo et al 2015; Liu et al 2020)
For identification of MQTLs involved in thermotolerance, integration of genome-wide association studies (GWAS), heat-responsive genes, genes underlying MQTLs and their expression, and homology comparison with rice offer an interesting contrast between the present and two earlier studies
Summary
Wheat (Triticum aestivum L.) is grown in the tropical and sub-tropical regions of the world plagued with various abiotic stresses (Gupta et al 2020). Heat and drought are recognized as the two most widely occurring abiotic stresses reducing wheat yield significantly (Gupta et al 2012, 2020). According to several studies on the effect of rising temperature on wheat grain yield, it is known that every 1°C rise in average temperature reduces global wheat yield by 6% (Asseng et al 2011). A rise of 2°C was estimated to reduce global wheat yields by 11% (Zaveri and Lobell 2019). Based on simulation studies involving agronomic trials conducted from 1985 to 2011, a 1°C rise in mean temperature during reproductive stages could cause as much as a 21% reduction in wheat yield (Barkley et al 2014)
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