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Mining Candidate Genes for Leaf Angle in Brassica napus L. by Combining QTL Mapping and RNA Sequencing Analysis.
Peng, Aoyi; Li, Shuyu; Wang, Yuwen; Cheng, Fengjie; Chen, Jun; Zheng, Xiaoxiao; Xiong, Jie; Ding, Ge; Zhang, Bingchao; Zhai, Wen; Song, Laiqiang; Wei, Wenliang; Chen, Lunlin.
Afiliación
  • Peng A; College of Agriculture, Yangtze University, Jingzhou 434025, China.
  • Li S; Jiangxi Province Key Laboratory of Oil Crops Genetic Improvement (2024SSY04031), Nanchang 330200, China.
  • Wang Y; Crop Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
  • Cheng F; Jiangxi Province Key Laboratory of Oil Crops Genetic Improvement (2024SSY04031), Nanchang 330200, China.
  • Chen J; Crop Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
  • Zheng X; College of Agriculture, Yangtze University, Jingzhou 434025, China.
  • Xiong J; Fuzhou Teachers' College, East China University of Technology, Fuzhou 344000, China.
  • Ding G; Jiangxi Province Key Laboratory of Oil Crops Genetic Improvement (2024SSY04031), Nanchang 330200, China.
  • Zhang B; Crop Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
  • Zhai W; Jiangxi Province Key Laboratory of Oil Crops Genetic Improvement (2024SSY04031), Nanchang 330200, China.
  • Song L; Crop Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
  • Wei W; Jiangxi Province Key Laboratory of Oil Crops Genetic Improvement (2024SSY04031), Nanchang 330200, China.
  • Chen L; Crop Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
Int J Mol Sci ; 25(17)2024 Aug 28.
Article en En | MEDLINE | ID: mdl-39273273
ABSTRACT
Leaf angle (LA) is an important trait of plant architecture, and individuals with narrow LA can better capture canopy light under high-density planting, which is beneficial for increasing the overall yield per unit area. To study the genetic basis and molecular regulation mechanism of leaf angle in rapeseed, we carried out a series of experiments. Quantitative trait loci (QTL) mapping was performed using the RIL population, and seven QTLs were identified. Transcriptome analysis showed that the cell wall formation/biogenesis processes and biosynthesis/metabolism of cell wall components were the most enrichment classes. Most differentially expressed genes (DEGs) involved in the synthesis of lignin, xylan, and cellulose showed down-regulated expression in narrow leaf material. Microscopic analysis suggested that the cell size affected by the cell wall in the junction area of the stem and petiole was the main factor in leaf petiole angle (LPA) differences. Combining QTL mapping and RNA sequencing, five promising candidate genes BnaA01G0125600ZS, BnaA01G0135700ZS, BnaA01G0154600ZS, BnaA10G0154200ZS, and BnaC03G0294200ZS were identified in rapeseed, and most of them were involved in cell wall biogenesis and the synthesis/metabolism of cell wall components. The results of QTL, transcriptome analysis, and cytological analysis were highly consistent, collectively revealing that genes related to cell wall function played a crucial role in regulating the LA trait in rapeseed. The study provides further insights into LA traits, and the discovery of new QTLs and candidate genes is highly beneficial for genetic improvement.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mapeo Cromosómico / Hojas de la Planta / Brassica napus / Sitios de Carácter Cuantitativo Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mapeo Cromosómico / Hojas de la Planta / Brassica napus / Sitios de Carácter Cuantitativo Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza