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RebL1 is required for macronuclear structure stability and gametogenesis in tetrahymena thermophila

Marine Life Science & Technology 2024年第2期6卷 183-197页

作者： Huijuan Hao Yinjie Lian Chenhui Ren Sitong Yang Min Zhao Tao Bo Jing Xu Wei Wang Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education Institute of BiotechnologyShanxi UniversityTaiyuan 030006China School of Life Science Shanxi UniversityTaiyuan 030006China Shanxi Key Laboratory of Biotechnology Taiyuan 030006China

Histone modification and nucleosome assembly play important roles in chromatin-related *** chaperones form different complexes and coordinate histone transportation and *** histone chaperone complexes have been identified in different *** ciliate protozoa(ciliates)have various chromatin structures and different nuclear ***,histone chaperone components and functions of different subunits remain unclear in ***-rahymema thermophila contains a transcriptionally active macronucleus(MAC)and a transcriptionally inactive micronu-cleus(MIC)which exhibit multiple replication and various chromatin remodeling progresses during vegetative growth and sexual developmental ***,we found histone chaperone RebL1 not only localized evenly in the transcriptionally active MAC but also dynamically changed in the MIC during vegetative growth and sexual developmental ***1 knockdown inhibited cellular *** macronuclear morphology became bigger in growing *** abnormal macronuclear structure also occurred in the starvation ***,micronuclear meiosis was disturbed during sexual development,leading to a failure to generate new gametic ***1 potentially interacted with various factors involved in histone-modifying complexes and chromatin remodeling complexes in different developmental ***1 knockdown affected expression levels of the genes involved in chromatin organization and *** together,RebL1 plays a vital role in maintaining macronuclear structure stability and gametogenesis in ***.

关键词： Gametogenesis Histone chaperone Macronuclear structure RebL1 tetrahymena thermophilaintroduction

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