Physcomitrium LATERAL SUPPRESSOR genes promote formative cell divisions to produce germ cell lineages in both male and female gametangia

IF 8.1 1区生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2024-12-31 DOI:10.1111/nph.20372

Yuta Horiuchi, Naoyuki Umakawa, Rina Otani, Yosuke Tamada, Ken Kosetsu, Yuji Hiwatashi, Rena Wakisaka, Saiko Yoshida, Takashi Murata, Mitsuyasu Hasebe, Masaki Ishikawa, Rumiko Kofuji

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Physcomitrium LATERAL SUPPRESSOR基因在雄性和雌性配子囊中促进形成性细胞分裂产生生殖细胞系

绿色植物从水生环境向陆生环境的进化被认为是由配子体的获得所促进的，配子体是容纳配子的专门的多细胞器官。负责产生和保护精子和卵细胞的卵母细胞和卵母细胞经历形成性细胞分裂，产生一个细胞分化为生殖细胞谱系，另一个细胞分化为周围结构。然而，控制这一过程的基因仍未确定。我们从先前建立的基因诱捕系中分离出配子体发育过程中表达的基因，并对其在配子体形成过程中的功能进行了表征。我们从基因陷阱文库中鉴定出了PpLAS1，该基因编码一种GRAS转录因子。双缺失突变体及其相似的PpLAS2在两个配子体中都不能形成内细胞。PpLASs在形成性细胞分裂的细胞中表达，将PpLAS1引入双缺失突变体成功地挽救了表型。这些发现强调了PpLASs在调节形成性细胞分裂、确保生殖细胞系与卵母细胞周围细胞分离中的关键作用。此外，他们还提出了PpLASs与陆地植物共同祖先雄性和雌性配子体的进化起源之间的联系。

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来源期刊

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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