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An overview of pigment gland morphogenesis and its regulatory mechanism

Journal of Cotton Research 2024年第2期7卷 207-214页

作者： SUN Yue YANG Ping HAN Yifei LI Huazu SUN Deli CHEN Jinhong ZHU Shuijin ZHAO Tianlun College of Agriculture and Biotechnology Zhejiang UniversityHangzhou 310058China Agricultural Experiment Station Zhejiang UniversityHangzhou 310058China Institute of Hainan Zhejiang UniversitySanyaHainan 572025China

Cotton has enormous economic potential,providing high-quality protein,oil,and *** the comprehensive utilization of cottonseed is limited by the presence of pigment gland and its *** gland is a common characteristic of Gossypium genus and its relatives,appearing as visible dark opaque dots in most tissues and organs of cotton *** metabolites,such as gossypol,synthesized and stored in the cavities of pigment glands act as natural phytoalexins,but are toxic to humans and other monogastric ***,only a few cotton genes have been identified as being associated with pigment gland morphogenesis to date,and the developmental processes and regulatory mechanism involved in pigment gland formation remain largely ***,the research progress on the process of pigment gland morphogenesis and the genetic basis of cotton pigment glands is reviewed,for providing a theoretical basis for cultivating cotton with the ideal pigment gland trait.

关键词： Cotton pigment gland morphogenesis Transcriptional regulation Terpenoids biosynthesis

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Single-cell transcriptomic analysis reveals the developmental trajectory and transcriptional regulatory networks of pigment glands in Gossypium bicki

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Molecular Plant 2023年第4期16卷 694-708页

作者： Yue Sun Yifei Han Kuang Sheng Ping Yang Yuefen Cao Huazu Li Qian-Hao Zhu Jinhong Chen Shujin Zhu Tianlun Zhao College of Agriculture and Biotechnology Zhejang UniversityHangzhou 310058China Agricultural Experiment Station Zhejiang UniversityHangzhou 310058China CSIRO Agriculture and Food GPO Box 1700CanberraACT 2601Australia Institute of Hainan Zhejiang UniversityHangzhou 310058China

Comprehensive utilization of cottonseeds is limited by the presence of pigment glands and its inclusion *** ideal cotton has glandless seeds but a glanded plant,a trait found in only a few Australian wild cotton species,including Gossypium *** of this trait into cultivated species has proved to be *** the biological processes toward pigment gland morphogenesis and the associated underlying molecular mechanisms will facilitate breeding of cultivated cotton varieties with the trait of glandless seeds and glanded *** this study,single-cell RNA sequencing(scRNA-seg)was performed on 12222 protoplasts isolated from cotyledons of germinating *** seeds 48 h after *** into 14 distinct clusters unsupervisedly,these cells could be grouped into eight cell populations with the assistance of known cell marker *** pigment gland cells were well separated from others and could be separated into pigment gland parenchyma cells,secretory cells,and apoptotic *** integrating the pigment gland cell developmental trajectory,transcription factor regulatory networks,and core transcription factor functional validation,we established a model for pigment gland *** this model,light and gibberellin were verified to promote the formation of pigment *** addition,three novel genes,GbiERF114(ETHYLENE RESPONSE FACTOR 114),GbiZAT11(ZINC FINGER OF ARABIDOPSIS THALIANA 11),and GbiNTL9(NAC TRANSCRIPTION FACTOR-LIKE 9),Were found to affect pigment gland ***,these findings provide new insights into pigment gland morphogenesis and lay the cornerstone for future cotton scRNA-seq investigations.

关键词： scRNA-seq pigment gland morphogenesis cell development cotton

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