GhLPF1 Associated Network Is Involved with Cotton Lint Percentage Regulation Revealed by the Integrative Analysis of Spatial Transcriptome
文献类型： 外文期刊
作者： Wu, Hongyu 1 ; Wang, Luyao 2 ; Zhao, Shengjun 1 ; Gao, Mengtao 3 ; Cao, Junfeng 5 ; Hao, Yupeng 1 ; Yu, Li 1 ; Zhao, Ting 1 ; Wang, Siyuan 1 ; Han, Jin 1 ; Zhu, Yumeng 1 ; Zhao, Yongyan 1 ; Li, Jie 3 ; Nie, Ke 1 ; Lu, Kening 3 ; Ding, Linyun 3 ; Zhang, Zhiyuan 2 ; Zhang, Tianzhen 1 ; Guan, Xueying 1 ;
作者机构： 1.Zhejiang Univ, Zhejiang Prov Key Lab Crop Genet Resources, Plant Precis Breeding Acad, Coll Agr & Biotechnol,Inst Crop Sci, Hangzhou 300058, Peoples R China
2.Zhejiang Univ, Hainan Inst, Yazhou Bay Sci & Technol City, Bldg 11,Yongyou Ind Pk, Sanya 572025, Hainan, Peoples R China
3.Nanjing Agr Univ, Minist Agr, Natl Key Lab Crop Genet & Germplasm Enhancement &, Nanjing 210095, Peoples R China
4.Nanjing Agr Univ, Minist Agr, Key Lab Plant Nutr & Fertilizat Low Middle Reaches, Nanjing 210095, Peoples R China
5.Chinese Univ Hong Kong, Sch Life Sci, Ctr Cell & Dev Biol, Shatin, Hong Kong, Peoples R China
6.Chinese Univ Hong Kong, State Key Lab Agrobiotechnol, Shatin, Hong Kong 999077, Peoples R China
7.Jiangsu Acad Agr Sci, Inst Leisure Agr, Nanjing 210014, Peoples R China
8.Hainan Seed Ind Lab, Seed Prod & Qual Control Res Ctr, Sanya, Hainan, Peoples R China
关键词： fiber regulation; population-wide transcriptome analysis; post-transcriptional regulation; spatial transcriptome
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 13 期
页码：
收录情况： SCI
摘要： Cotton fibers, derived from the epidermis of the ovule, provide a sustainable natural fiber source for the textile industry. Traits related to fiber yield are predominantly determined by molecular regulations in the epidermis of the outer integument (OI) region of the cotton ovule. Here, we identify an R2R3 MYB transcription factor coding gene GhLPF1 within the QTL-LP-ChrA06 locus for lint percentage (LP, percentage of lint to seed cotton) through constructing the 1-Day Post Anthesis Cotton Ovule Spatial Transcriptome Atlas. GhLPF1 is subjected as a downstream target of miR828 during fiber development. The direct downstream genes (DDGs) of GhLPF1 are biased to increased expression in GhLPF1-CR, and are preferentially expressed in OI, so that GhLPF1 is primarily a transcriptional repressor to its DDGs. Population-wide transcriptome analysis confirms that expression variation of GhLPF1-DDGs is significantly biased to negative correlation with LP, among which a type I homeobox protein-coding gene GhHB6 is further validated to be the directly downstream gene of GhLPF1. Given these data, it is demonstrated that GhLPF1 mediates a regulation network in LP as a transcriptional repressor, which makes it a valuable functional marker for fiber-trait improvement application from QTL-LP-ChrA06.
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