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Characterization of wheat oligo-tiller mutant ot2 and fine mapping of the mutant gene Taot2.

The plant genome - 1 Jun 2025

Wang Chenxi, Bai Jiaxing, Xiong Hongchun, Xie Yongdun, Gu Jiayu, Zhao Linshu, Li Huiyuan, Ding Yuping, Guo Xinmei, Guo Huijun, Liu Luxiang

Abstract excerpt

Tiller number is a crucial determinant of grain yield in wheat (Triticum aestivum L.), and identifying functional alleles can enhance our understanding of wheat tiller development. Here, we describe the ot2 wheat mutant, which exhibits a 91% reduction in tiller number compared to the wild type and displays inhibited tiller bud differentiation from the 2-3 leaf stage. Bulked segregant analysis combined with exon...

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PMID: 40341859
DOI: 10.1002/tpg2.70043
PMCID: PMC12060087

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