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Plant Cell Rep ; 42(8): 1379-1390, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37227494

RESUMO

KEY MESSAGE: This study provides important information on the genetic basis of GCaC in wheat, thus contributing to breeding efforts to improve the nutrient quality of wheat. Calcium (Ca) plays important roles in the human body. Wheat grain provides the main diet for billions of people worldwide but is low in Ca content. Here, grain Ca content (GCaC) of 471 wheat accessions was determined in four field environments. A genome-wide association study (GWAS) was performed to reveal the genetic basis of GCaC using the phenotypic data form four environments and a wheat 660 K single nucleotide polymorphism (SNP) array. Twelve quantitative trait locus (QTLs) for GCaC were identified on chromosomes 1A, 1D, 2A, 3B, 6A, 6D, 7A, and 7D, which was significant in at least two environments. Haplotype analysis revealed that the phenotypic difference between the haplotypes of TraesCS6D01G399100 was significant (P ≤ 0.05) across four environments, suggesting it as an important candidate gene for GCaC. This research enhances our understanding of the genetic architecture of GCaC for further improving the nutrient quality of wheat.


Assuntos
Cálcio , Estudo de Associação Genômica Ampla , Humanos , Mapeamento Cromossômico , Triticum/genética , Pão , Melhoramento Vegetal , Grão Comestível/genética , Variação Genética , Polimorfismo de Nucleotídeo Único/genética , Fenótipo
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