Unraveling the genetic basis of maize ear diameter in a multi-parent RIL population derived from tropical and temperate germplasms
文献类型： 外文期刊
作者： Yang, Xiaoping 1 ; Shaw, Ranjan K. 2 ; Jiang, Fuyan 2 ; Wang, Guohong 2 ; Fan, Xingming 2 ;
作者机构： 1.Yunnan Univ, Coll Agr, Kunming 650500, Peoples R China
2.Yunnan Acad Agr Sci, Inst Food Crops, Kunming, Peoples R China
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：4.2； 五年影响因子：4.9 ）
ISSN： 0040-5752
年卷期： 2025 年 138 卷 8 期
页码：
收录情况： SCI
摘要： Key messageBased on WGS data, GWAS and QTL mapping jointly reveal the genetic mechanisms underlying maize ear diameter and identify candidate genes associated with this trait.AbstractMaize ear diameter is a crucial yield-related trait, yet its underlying genetic mechanisms remain largely undefined. To elucidate its genetic basis, a multi-parent population was developed from tropical and temperate maize germplasms. Employing a combined genome-wide association study and quantitative trait locus (QTL) mapping approach, five novel candidate genes (Zm00001eb032370, Zm00001eb050010, Zm00001eb303690, Zm00001eb023590, and Zm00001eb035700) and three key QTLs (qE1-1, qE1-5, and qE1-7) significantly associated with maize ear diameter were identified. Comprehensive analysis revealed that these candidate genes are involved in essential biological processes, including growth regulation, signal transduction, and stress responses, and likely modulate ear diameter through mechanisms such as hormone balance, cell division, and expansion. This study provides critical novel candidate genes for improving maize ear diameter and offers valuable insights into the molecular mechanisms regulating plant growth and development. Our findings not only enhance the understanding of maize developmental biology but also lay a theoretical foundation and offer new strategies for the genetic improvement of maize yield traits.
- 相关文献
作者其他论文 更多>>
-
Review: Recent advances in unraveling the genetic architecture of kernel row number in maize
作者：Wang, Yizhu;Shaw, Ranjan K.;Fan, Xingming
关键词：Kernel row number (KRN); Maize; Inflorescence development; Genomics; Functional validation; CRISPR-Cas9
-
Novel candidate genes and genetic basis analysis of kernel starch content in tropical maize
作者：Yang, Xiaoping;Yang, Xiaoping;Shaw, Ranjan K.;Li, Linzhuo;Jiang, Fuyan;Fan, Xingming
关键词：Maize; Kernel starch content; QTL mapping; Genome-wide association analysis; Candidate genes
-
Genome-wide association study of Northern corn leaf blight (NCLB) resistance using temperate and subtropical maize recombinant inbred lines
作者：Gong, Xiaodong;Jiang, Fuyan;Shaw, Ranjan K.;Sun, Jiachen;Dai, Tao;Bi, Yaqi;Pan, Yanhui;Kong, Jiao;Zong, Haiyang;Yang, Xiaoping;Ijaz, Babar;Fan, Xingming;Gong, Xiaodong;Dai, Tao;Pan, Yanhui;Zong, Haiyang;Yang, Xiaoping;Sun, Jiachen;Kong, Jiao
关键词：Maize; NCLB;
Setosphaeria turcica ; GWAS; QRT-PCR -
Genetic dissection of hundred-kernel weight through combined genome-wide association study and linkage analysis in tropical maize
作者：Shi, Mengfei;Jiang, Fuyan;Shaw, Ranjan K.;Ijaz, Babar;Sun, Jiachen;Fan, Xingming;Shi, Mengfei;Sun, Jiachen
关键词：Maize; Hundred-kernel weight; Multi-parent population; Genome-wide association study
-
Identification of key candidate genes regulating hundred-grain weight in the maize inbred line Ye107 from Southern China
作者：Hong, Xiaoli;Shaw, Ranjan K.;Jiang, Fuyan;Sun, Jiachen;Bi, Yaqi;Wu, Xiao;Dai, Tao;Ye, Fengli;Zhu, Jiaguo;Guan, Tingting;Xu, Chunxia;Fan, Xingming;Hong, Xiaoli;Wu, Xiao;Dai, Tao;Ye, Fengli;Sun, Jiachen;Zhu, Jiaguo;Guan, Tingting
关键词：Maize; Hundred-grain weight; GWAS; QTL mapping; Candidate genes; GEBV
-
Cerium Oxide Nanoparticle Protects Maize from Cobalt Stress: Insights from Transcriptomics and Oxidative Stress Response Analysis
作者：Salam, Abdul;Qi, Jiaxuan;Ulhassan, Zaid;Rehman, Muhammad;Gan, Yinbo;Salam, Abdul;Zeeshan, Muhammad;Fan, Xingming;Khan, Ali Raza;Kah, Melanie;Yang, Shuaiqi
关键词：cobalt stress; maize; cerium oxide nanoparticles; oxidative stress; RNA seq; ultrastructure
-
Identification of candidate gene associated with maize northern leaf blight resistance in a multi-parent population
作者：Bi, Yaqi;Jiang, Fuyan;Yin, Xingfu;Shaw, Ranjan K.;Guo, Ruijia;Wang, Jing;Fan, Xingming
关键词：Zea mays; Northern leaf blight; Multi-parent population; Genome-wide association analysis; QTL mapping; CATETO germplasm
