An overview of genome-wide association mapping studies in Poaceae species (model crops: wheat and rice)

Zia, Muhammad; Yousaf, Muhammad; Asim, Arslan; Naeem, Muhammad

doi:10.1007/s11033-022-08036-2

Cited by 4 publications

(1 citation statement)

References 102 publications

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“…Sequencing provides the foundational genetic map, essential for any genetic analysis, while association mapping builds on this foundation, pinpointing the specific genetic elements that contribute to key agronomic traits. This powerful combination not only deepens our understanding of wheat genetics but also drives practical applications in breeding [109]. Through marker-assisted selection and genomic selection, breeders can develop improved wheat varieties more efficiently, tailoring them to specific environmental conditions and challenges.…”

Section: Genome Sequencing and Association Mappingmentioning

confidence: 99%

Genetic and Genomic Pathways to Improved Wheat (Triticum aestivum L.) Yields: A Review

Chachar,

Fan,

Chachar

et al. 2024

Agronomy

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Wheat (Triticum aestivum L.) is a fundamental crop essential for both human and animal consumption. Addressing the challenge of enhancing wheat yield involves sophisticated applications of molecular genetics and genomic techniques. This review synthesizes current research identifying and characterizing pivotal genes that impact traits such as grain size, number, and weight, critical factors influencing overall yield. Key genes including TaSPL17, ABP7, TaGNI, TaCKX6, TaGS5, TaDA1, WAPO1, TaRht1, TaTGW-7A, TaGW2, TaGS5-3A, TaSus2-2A, TaSus2-2B, TaSus1-7A, and TaSus1-7B are examined for their roles in these traits. The review also explores genes responsive to environmental changes, which are increasingly significant under current climate variability. Multi-trait regulatory genes and quantitative trait loci (QTLs) that contribute to these traits are discussed, highlighting their dual influences on grain size and yield. Furthermore, the paper underscores the utility of emerging technologies such as CRISPR/Cas9, Case13, and multi-omics approaches. These innovations are instrumental for future discoveries and are poised to revolutionize wheat breeding by enabling precise genetic enhancements. Facing unprecedented challenges from climate change, the identification and utilization of these candidates is crucial. This review aims to be a comprehensive resource for researchers, providing an integrative understanding of complex traits in wheat and proposing new avenues for research and crop improvement strategies.

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Section: Genome Sequencing and Association Mappingmentioning

confidence: 99%

Genetic and Genomic Pathways to Improved Wheat (Triticum aestivum L.) Yields: A Review

Chachar,

Fan,

Chachar

et al. 2024

Agronomy

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Proteomics as a tool for analyzing plant responses to abiotic and biotic stresses

Chauhan

Thakur

Sharma

et al. 2023

Genomics, Transcriptomics, Proteomics and Metabolomics of Crop Plants

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Haplotypes of ATP-Binding Cassette CaABCC6 in Chickpea from Kazakhstan Are Associated with Salinity Tolerance and Leaf Necrosis via Oxidative Stress

Khassanova,

Jatayev,

Gabdola

et al. 2024

Biomolecules

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Salinity tolerance was studied in chickpea accessions from a germplasm collection and in cultivars from Kazakhstan. After NaCl treatment, significant differences were found between genotypes, which could be arranged into three groups. Those that performed poorest were found in group 1, comprising five ICC accessions with the lowest chlorophyll content, the highest leaf necrosis (LN), Na+ accumulation, malondialdehyde (MDA) content, and a low glutathione ratio GSH/GSSG. Two cultivars, Privo-1 and Tassay, representing group 2, were moderate in these traits, while the best performance was for group 3, containing two other cultivars, Krasnokutsky-123 and Looch, which were found to have mostly green plants and an exact opposite pattern of traits. Marker–trait association (MTA) between 6K DArT markers and four traits (LN, Na+, MDA, and GSH/GSSG) revealed the presence of four possible candidate genes in the chickpea genome that may be associated with the three groups. One gene, ATP-binding cassette, CaABCC6, was selected, and three haplotypes, A, D1, and D2, were identified in plants from the three groups. Two of the most salt-tolerant cultivars from group 3 were found to have haplotype D2 with a novel identified SNP. RT-qPCR analysis confirmed that this gene was strongly expressed after NaCl treatment in the parental- and breeding-line plants of haplotype D2. Mass spectrometry of seed proteins showed a higher accumulation of glutathione reductase and S-transferase, but not peroxidase, in the D2 haplotype. In conclusion, the CaABCC6 gene was hypothesized to be associated with a better response to oxidative stress via glutathione metabolism, while other candidate genes are likely involved in the control of chlorophyll content and Na+ accumulation.

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An overview of genome-wide association mapping studies in Poaceae species (model crops: wheat and rice)

Cited by 4 publications

References 102 publications

Genetic and Genomic Pathways to Improved Wheat (Triticum aestivum L.) Yields: A Review

Genetic and Genomic Pathways to Improved Wheat (Triticum aestivum L.) Yields: A Review

Proteomics as a tool for analyzing plant responses to abiotic and biotic stresses

Haplotypes of ATP-Binding Cassette CaABCC6 in Chickpea from Kazakhstan Are Associated with Salinity Tolerance and Leaf Necrosis via Oxidative Stress

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