数字农科院2.0

Genomic and genetic insights into Mendel's pea genes

文献类型： 外文期刊

作者： Feng, Cong;Chen, Baizhi;Hofer, Julie;Shi, Yan;Jiang, Mei;Song, Bo;Cheng, Hong;Lu, Lu;Wang, Luyao;Howard, Alex;Bendahmane, Abdel;Fouchal, Anissa;Moreau, Carol;Sawada, Chie;LeSignor, Christine;Zhang, Cuijun;Vikeli, Eleni;Tsanakas, Georgios;Zhao, Hang;Cheema, Jitender;Barclay, J. Elaine;Hou, Junliang;Sayers, Liz;Wingen, Luzie;Vigouroux, Marielle;Vickers, Martin;Ambrose, Mike;Dalmais, Marion;Higuera-Poveda, Paola;Li, Pengfeng;Yuan, Quan;Spanner, Rebecca;Horler, Richard;Wouters, Roland;Chundakkad, Smitha;Wu, Tian;Zhao, Xiaoxiao;Li, Xiuli;Sun, Yuchen;Huang, Zejian;Wu, Zhen;Deng, Xing Wang;Steuernagel, Burkhard;Domoney, Claire;Ellis, Noel;Chayut, Noam;Cheng, Shifeng

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关键词： （1-1-1）

期刊名称： NATURE

ISSN： 0028-0836

年卷期： 2025 年

页码：

收录情况： SCIE（2025版）

摘要： Mendel1 studied in detail seven pairs of contrasting traits in pea (Pisum sativum), establishing the foundational principles of genetic inheritance. Here we investigate the genetic architecture that underlies these traits and uncover previously undescribed alleles for the four characterized Mendelian genes2, 3, 4, 5, 6-7, including a rare revertant of Mendel's white-flowered a allele. Primarily, we focus on the three remaining uncharacterized traits and find that (1) an approximately 100-kb genomic deletion upstream of the Chlorophyll synthase (ChlG) gene disrupts chlorophyll biosynthesis through the generation of intergenic transcriptional fusion products, conferring the yellow pod phenotype of gp mutants; (2) a MYB gene with an upstream Ogre element insertion and a CLE peptide-encoding gene with an in-frame premature stop codon explain the v and p alleles, which disrupt secondary cell wall thickening and lignification, resulting in the parchmentless, edible-pod phenotype; and (3) a 5-bp exonic deletion in a CIK-like co-receptor kinase gene, in combination with a genetic modifier locus, is associated with the fasciated stem (fa) phenotype. Furthermore, we characterize genes and alleles associated with diverse agronomic traits, such as axil ring anthocyanin pigmentation, seed size and the 'semi-leafless' form. This study establishes a foundation for fundamental research, education in biology and genetics, and pea breeding practices.

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