文献类型： 外文期刊
作者： Zhan, Jingjing 1 ; Zhang, Xiaoshuang 2 ; Wang, Ye 1 ; Zhao, Hang 1 ; Chu, Yu 1 ; Wang, Peng 1 ; Chen, Yanli 1 ; Wei, Xi 1 ; Qin, Wenqiang 1 ; Liu, Menghan 1 ; Kong, Jie 4 ; Li, Fuguang 1 ; Ge, Xiaoyang 1 ;
作者机构： 1.Chinese Acad Agr Sci, State Key Lab Cotton Biobreeding & Integrated Util, Inst Cotton Res, Anyang 455000, Peoples R China
2.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430000, Peoples R China
3.Qufu Normal Univ, Coll Life Sci, Qufu 273100, Peoples R China
4.Xinjiang Acad Agr Sci, Inst Econ Crops, Urumqi 830091, Xinjiang, Peoples R China
关键词： cotton; GhH1; GhWL1; leaf morphology; T-DNA mutant
期刊名称：ADVANCED SCIENCE （ 影响因子：14.1； 五年影响因子：15.6 ）
ISSN：
年卷期： 2025 年 12 卷 20 期
页码：
收录情况： SCI
摘要： Leaf morphology critically influences photosynthetic efficiency, directly affecting crop yield and quality. In this study, a T-DNA insertion mutant (wl-D), characterized by a wrinkled-leaf phenotype, is identified. Genetic analysis reveals that this phenotype is governed by a single dominant gene, WRINKLED-LEAF 1 (GhWL1), which is highly expressed in wl-D compared to the wild type (WT). Overexpression of GhWL1 in WT caused curling at leaf edges, while suppression of GhWL1 in wl-D restored normal leaf morphology, validating its functional role. Further analysis demonstrated that GhWL1 interacts with GhH1, a protein with a KNOX1 structural domain, to regulate leaf development. Overexpression of GhH1 in WT results in a leaf shrinkage phenotype similar to wl-D, whereas suppressing GhH1 in wl-D restored normal leaf morphology, indicating that GhH1 acts downstream of GhWL1. The GhWL1-GhH1 complex directly binds to the promoter of GhGA2OX1 (gibberellin 2-beta-dioxygenase 1), positively regulating its expression. Overexpression of GhGA2OX1 in WT mimicked the leaf shrinkage phenotype observed in plants overexpressing GhH1. These findings establish the GhWL1-GhH1-GhGA2OX1 module as a critical pathway in regulating leaf development, offering valuable insights into the genetic and hormonal networks controlling leaf morphological diversity.
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