Qian Qian, Weiguo Hu, Yang Yu, Yang Liu, Yesong Tian, Xiaohong Zhang, Donghong Min
{"title":"Overexpression of TaCR4-A positively regulates grain size in Triticum aestivum.","authors":"Qian Qian, Weiguo Hu, Yang Yu, Yang Liu, Yesong Tian, Xiaohong Zhang, Donghong Min","doi":"10.1186/s12870-025-07345-5","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Grain size is a critical factor that affects yield in wheat (Triticum aestivum). CRINKLY4 (CR4) receptor-like kinase regulates epidermal cell differentiation and seed development in several plant species, yet its functional role in wheat remains to be clarified.</p><p><strong>Results: </strong>In this study, we identified the TaCR4 gene, which encodes the CRINKLY4 receptor-like kinase homolog in wheat. We created overexpressing (OE) wheat lines with increased TaCR4-A expression and found that the grain length, width, thickness, and weight of the OE lines increased. Cytological analysis revealed that the overexpression of TaCR4-A increased the length, width, and area of wheat grain outer pericarp cells.</p><p><strong>Conclusions: </strong>This study demonstrated that TaCR4 positively regulates wheat grain size by regulating the size of grain epidermal cells.</p>","PeriodicalId":9198,"journal":{"name":"BMC Plant Biology","volume":"25 1","pages":"1273"},"PeriodicalIF":4.8000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12487043/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMC Plant Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1186/s12870-025-07345-5","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Grain size is a critical factor that affects yield in wheat (Triticum aestivum). CRINKLY4 (CR4) receptor-like kinase regulates epidermal cell differentiation and seed development in several plant species, yet its functional role in wheat remains to be clarified.
Results: In this study, we identified the TaCR4 gene, which encodes the CRINKLY4 receptor-like kinase homolog in wheat. We created overexpressing (OE) wheat lines with increased TaCR4-A expression and found that the grain length, width, thickness, and weight of the OE lines increased. Cytological analysis revealed that the overexpression of TaCR4-A increased the length, width, and area of wheat grain outer pericarp cells.
Conclusions: This study demonstrated that TaCR4 positively regulates wheat grain size by regulating the size of grain epidermal cells.
期刊介绍：
BMC Plant Biology is an open access, peer-reviewed journal that considers articles on all aspects of plant biology, including molecular, cellular, tissue, organ and whole organism research.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
