In:
Frontiers in Plant Science, Frontiers Media SA, Vol. 14 ( 2023-4-3)
Abstract:
Zinc (Zn) deficiency causes serious diseases in people who rely on cereals as their main food source. However, the grain zinc concentration (GZnC) in wheat is low. Biofortification is a sustainable strategy for reducing human Zn deficiency. Methods In this study, we constructed a population of 382 wheat accessions and determined their GZnC in three field environments. Phenotype data was used for a genome-wide association study (GWAS) using a 660K single nucleotide polymorphism (SNP) array, and haplotype analysis identified an important candidate gene for GZnC. Results We found that GZnC of the wheat accessions showed an increasing trend with their released years, indicating that the dominant allele of GZnC was not lost during the breeding process. Nine stable quantitative trait loci (QTLs) for GZnC were identified on chromosomes 3A, 4A, 5B, 6D, and 7A. And an important candidate gene for GZnC, namely, TraesCS6D01G234600, and GZnC between the haplotypes of this gene showed, significant difference (P ≤ 0.05) in three environments. Discussion A novel QTL was first identified on chromosome 6D, this finding enriches our understanding of the genetic basis of GZnC in wheat. This study provides new insights into valuable markers and candidate genes for wheat biofortification to improve GZnC.
Type of Medium:
Online Resource
ISSN:
1664-462X
DOI:
10.3389/fpls.2023.1169858
DOI:
10.3389/fpls.2023.1169858.s001
DOI:
10.3389/fpls.2023.1169858.s002
DOI:
10.3389/fpls.2023.1169858.s003
DOI:
10.3389/fpls.2023.1169858.s004
DOI:
10.3389/fpls.2023.1169858.s005
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2023
detail.hit.zdb_id:
2687947-5
detail.hit.zdb_id:
2613694-6