Fine-mapping and candidate gene identification for QPtn.sau-4B showing potential in increasing productive tiller number and yield in wheat

Productive tiller number (PTN) is a pivotal trait that significantly influences wheat grain yield. To date, there have been limited reports on the cloning of genes that regulate PTN in wheat. The quantitative trait locus (QTL) QPtn.sau-4B , associated with PTN, was previously mapped between the markers KASP-1 and KASP-3 on the chromosome 4B. Here, utilizing 12 newly developed markers and phenotypic data of PTN from recombinants identified within this interval, QPtn.sau-4B was further fine-mapped to a 2.58 Mb interval on wheat chromosome arm 4BS. Within this interval, we identified 14 genes with high-confidence and 32 genes with low-confidence. A 0.17 Mb deletion fragment contained TraesCS4B03G0092600 and TraesCS4B03G0093100 , which were assigned as candidate genes for QPtn.sau-4B . Additionally, QPtn.sau-4B had potential to enhance both PTN and grain yield in wheat. Cloning this locus would support the development of wheat cultivars with increased grain yield.

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Publication Details

Journal
The Crop Journal
Published
2025-02-26
DOI
https://doi.org/10.1016/j.cj.2025.01.014
Citations
2
Primary Topic
Wheat and Barley Genetics and Pathology
Type
article
Field-Weighted Citation Impact
3.50
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article

Fine-mapping and candidate gene identification for QPtn.sau-4B showing potential in increasing productive tiller number and yield in wheat

Pengfei Qi, Tongzhu Wang, Chunji Liu, Yuming Wei et al.
2 citations
The Crop Journal
Wheat and Barley Genetics and Pathology
3.50
article

Fine-mapping and candidate gene identification for QPtn.sau-4B showing potential in increasing productive tiller number and yield in wheat

Pengfei Qi, Tongzhu Wang, Chunji Liu, Yuming Wei, Guoyue Chen, Qiang Xu, Yuxin Lan, Qiantao Jiang, Yi Liu, Zhiyuan Zhang, Jian Ma, Jiajun Liu, Lei Wu, Yin Li, Xinrong Hu, Huaping Tang, Yunfeng Jiang, Jianing You, Youliang Zheng
article en
2 citations

Abstract

Productive tiller number (PTN) is a pivotal trait that significantly influences wheat grain yield. To date, there have been limited reports on the cloning of genes that regulate PTN in wheat. The quantitative trait locus (QTL) QPtn.sau-4B , associated with PTN, was previously mapped between the markers KASP-1 and KASP-3 on the chromosome 4B. Here, utilizing 12 newly developed markers and phenotypic data of PTN from recombinants identified within this interval, QPtn.sau-4B was further fine-mapped to a 2.58 Mb interval on wheat chromosome arm 4BS. Within this interval, we identified 14 genes with high-confidence and 32 genes with low-confidence. A 0.17 Mb deletion fragment contained TraesCS4B03G0092600 and TraesCS4B03G0093100 , which were assigned as candidate genes for QPtn.sau-4B . Additionally, QPtn.sau-4B had potential to enhance both PTN and grain yield in wheat. Cloning this locus would support the development of wheat cultivars with increased grain yield.

The Crop JournalVol. 13(2)
Sichuan Agricultural University (CN), Sichuan University of Arts and Science (CN), Henan Institute of Technology (CN), Henan Institute of Science and Technology (CN), Sichuan Academy of Agricultural Sciences (CN)
Zero hunger
Openalex Percentile: Top 9%
Wheat and Barley Genetics and Pathology
3.50
DOIOpen Access PDFOpenAlex
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