Quantitative trait loci (QTL) analysis of flag leaf senescence in wheat (Triticum aestivum L.) with microsatellite DNA markers under water-stressed condition

Abouzied, Hanaa; Shakam, Hauda Mohamed; Milad, Sanaa I.M.; Barakat, Mohamed Naguib

doi:10.5897/ajb11.4161

Afr. J. Biotechnol.

2012

DOI: 10.5897/ajb11.4161

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Quantitative trait loci (QTL) analysis of flag leaf senescence in wheat (Triticum aestivum L.) with microsatellite DNA markers under water-stressed condition

Hanaa Abouzied¹,

Hauda Mohamed Shakam²,

Sanaa I.M. Milad³

et al.

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2024

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References 34 publications

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Dissection of QTLs underlying the genetic basis of drought resistance in wheat: A Meta-Analysis

Wang,

Shakir,

Geng

et al. 2024

Preprint

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Wheat (Triticum aestivum L.) is one of the most important cereal crops, with its grain serving as a predominant staple food source on a global scale. However, there are many biotic and abiotic stresses challenging the stability of wheat production. Among the abiotic stresses, drought is recognized as a significant stressor, and poses a substantial threat to food production and quality throughout the world. Raising drought tolerance of wheat varieties through genetic regulation is therefore considered as one of the most effective ways to combat the challenges caused by drought stress. Meta-QTL analysis has demonstrated its effectiveness in identifying consensus QTL regions in wheat drought resistance in numerous instances. In this study, we present a comprehensive meta-analysis aimed at unraveling the drought tolerance genetic basis associated with agronomic traits in bread wheat. Extracting data from 34 previously-published studies, we aggregated a corpus of 1291 Quantitative Trait Loci (QTL) pertinent to wheat drought tolerance. Then the translation of the consensus genetic map yielded a comprehensive compendium of 49 distinct MQTLs, each associated with diverse agronomic traits. Prominently featured among the MQTLs were MQTLs 1.1, 1.7, 1.8 (1D), 4.1 (4A), 4.6 (4D), 5.2 (5B), 6.6 (6B) and 7.2 (7B), distinguished as pivotal MQTLs offering significant potential for application in marker-assisted breeding endeavors. Altogether, a total of 66 putative candidate genes (CGs) related drought tolerance was identified. This work illustrates a translational research approach in transferring information from published mapping studies to genomic regions hosting major QTLs governing key agronomical traits in wheat.

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Dissection of QTLs underlying the genetic basis of drought resistance in wheat: A Meta-Analysis

Wang,

Shakir,

Geng

et al. 2024

Preprint

View full text Add to dashboard Cite

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Quantitative trait loci (QTL) analysis of flag leaf senescence in wheat (Triticum aestivum L.) with microsatellite DNA markers under water-stressed condition

Cited by 1 publication

References 34 publications

Dissection of QTLs underlying the genetic basis of drought resistance in wheat: A Meta-Analysis

Dissection of QTLs underlying the genetic basis of drought resistance in wheat: A Meta-Analysis

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