Life cycle and morphogenetic differentiation in heteromorphic cell types of a cosmopolitan marine microalga

IF 8.1 1区 生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2024-12-25 DOI:10.1111/nph.20360
Laurie Bousquet, Shai Fainsod, Johan Decelle, Omer Murik, Fabien Chevalier, Benoit Gallet, Rachel Templin, Yannick Schwab, Yoav Avrahami, Gil Koplovitz, Chuan Ku, Miguel J. Frada
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世界性海洋微藻异型细胞类型的生命周期和形态发生分化
Gephyrocapsa huxleyi是海洋中普遍存在的一种形成水华的浮游植物。它具有复杂的单倍体生命周期,包括二倍体钙化期、单倍体期和病毒感染期间产生的第三个“解耦”期。去耦细胞显示单倍体样表型,但为二倍体。在这里,我们研究了分离细胞在培养观察中的命运,并比较了三种生命周期细胞类型的转录组谱和细胞超微结构。我们发现解耦细胞可以在没有病毒压力的情况下恢复到钙化形式,揭示了G. huxleyi作为外部条件的功能调节细胞分化的能力。超微结构分析显示核组织明显,染色质体积变化。转录组学分析揭示了每个生命阶段特有的基因表达模式。其中包括染色质重塑中的多种调节功能,更广泛的表观遗传机制和生命循环,可能有助于细胞分化。最后,可用的宿主-病毒转录组分析支持病毒感染过程中的生命周期转变。本研究为球石藻核重塑和细胞分化提供了细胞分子基础,为研究自然种群中球石藻生命周期提供了基因标记。
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来源期刊
New Phytologist
New Phytologist 生物-植物科学
自引率
5.30%
发文量
728
期刊介绍: New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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