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Profiling the selected hotspots for ear traits in two maize-teosinte populations.
Feng, Xuanjun; Guan, Huarui; Wen, Ying; Zhou, Hanmei; Xing, Xiaobin; Li, Yinzhi; Zheng, Dan; Wang, Qingjun; Zhang, Weixiao; Xiong, Hao; Hu, Yue; Jia, Li; Luo, Shuang; Zhang, Xuemei; Guo, Wei; Wu, Fengkai; Xu, Jie; Liu, Yaxi; Lu, Yanli.
  • Feng X; State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, 611130, Sichuan, China.
  • Guan H; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Wen Y; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Zhou H; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Xing X; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Li Y; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Zheng D; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Wang Q; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Zhang W; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Xiong H; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Hu Y; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Jia L; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Luo S; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Zhang X; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Guo W; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Wu F; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Xu J; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Liu Y; Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
  • Lu Y; Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
Theor Appl Genet ; 137(3): 74, 2024 Mar 07.
Article en En | MEDLINE | ID: mdl-38451289
ABSTRACT
KEY MESSAGE Eight selected hotspots related to ear traits were identified from two maize-teosinte populations. Throughout the history of maize cultivation, ear-related traits have been selected. However, little is known about the specific genes involved in shaping these traits from their origins in the wild progenitor, teosinte, to the characteristics observed in modern maize. In this study, five ear traits (kernel row number [KRN], ear length [EL], kernel number per row [KNR], cob diameter [CD], and ear diameter [ED]) were investigated, and eight quantitative trait loci (QTL) hotspots were identified in two maize-teosinte populations. Notably, our findings revealed a significant enrichment of genes showing a selection signature and expressed in the ear in qbdCD1.1, qbdCD5.1, qbpCD2.1, qbdED1.1, qbpEL1.1, qbpEL5.1, qbdKNR1.1, and qbdKNR10.1, suggesting that these eight QTL are selected hotspots involved in shaping the maize ear. By combining the results of the QTL analysis with data from previous genome-wide association study (GWAS) involving two natural panels, we identified eight candidate selected genes related to KRN, KNR, CD, and ED. Among these, considering their expression pattern and sequence variation, Zm00001d025111, encoding a WD40/YVTN protein, was proposed as a positive regulator of KNR. This study presents a framework for understanding the genomic distribution of selected loci crucial in determining ear-related traits.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Zea mays / Estudio de Asociación del Genoma Completo Idioma: En Año: 2024 Tipo del documento: Article
Texto completo
Imprimir
XML
PubMed Links
Search on Google

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Zea mays / Estudio de Asociación del Genoma Completo Idioma: En Año: 2024 Tipo del documento: Article