Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants

KNOX and BELL transcription factors regulate distinct steps of diploid development in plants. In the green alga Chlamydomonas reinhardtii, KNOX and BELL proteins are inherited by gametes of the opposite mating types and heterodimerize in zygotes to activate diploid development. By contrast, in land...

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Autores principales:	Tetsuya Hisanaga, Shota Fujimoto, Yihui Cui, Katsutoshi Sato, Ryosuke Sano, Shohei Yamaoka, Takayuki Kohchi, Frédéric Berger, Keiji Nakajima
Formato:	article
Lenguaje:	EN
Publicado:	eLife Sciences Publications Ltd 2021
Materias:	Marchantia polymorpha TALE homeodomain transcription factors karyogamy evolution zygote Medicine R Science Q Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/3c722a9bd7e746d08308170b903652d4
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spelling	oai:doaj.org-article:3c722a9bd7e746d08308170b903652d42021-11-09T13:17:14ZDeep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants10.7554/eLife.570902050-084Xe57090https://doaj.org/article/3c722a9bd7e746d08308170b903652d42021-09-01T00:00:00Zhttps://elifesciences.org/articles/57090https://doaj.org/toc/2050-084XKNOX and BELL transcription factors regulate distinct steps of diploid development in plants. In the green alga Chlamydomonas reinhardtii, KNOX and BELL proteins are inherited by gametes of the opposite mating types and heterodimerize in zygotes to activate diploid development. By contrast, in land plants such as Physcomitrium patens and Arabidopsis thaliana, KNOX and BELL proteins function in meristem maintenance and organogenesis during the later stages of diploid development. However, whether the contrasting functions of KNOX and BELL were acquired independently in algae and land plants is currently unknown. Here, we show that in the basal land plant species Marchantia polymorpha, gamete-expressed KNOX and BELL are required to initiate zygotic development by promoting nuclear fusion in a manner strikingly similar to that in C. reinhardtii. Our results indicate that zygote activation is the ancestral role of KNOX/BELL transcription factors, which shifted toward meristem maintenance as land plants evolved.Tetsuya HisanagaShota FujimotoYihui CuiKatsutoshi SatoRyosuke SanoShohei YamaokaTakayuki KohchiFrédéric BergerKeiji NakajimaeLife Sciences Publications LtdarticleMarchantia polymorphaTALE homeodomaintranscription factorskaryogamyevolutionzygoteMedicineRScienceQBiology (General)QH301-705.5ENeLife, Vol 10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Marchantia polymorpha TALE homeodomain transcription factors karyogamy evolution zygote Medicine R Science Q Biology (General) QH301-705.5
spellingShingle	Marchantia polymorpha TALE homeodomain transcription factors karyogamy evolution zygote Medicine R Science Q Biology (General) QH301-705.5 Tetsuya Hisanaga Shota Fujimoto Yihui Cui Katsutoshi Sato Ryosuke Sano Shohei Yamaoka Takayuki Kohchi Frédéric Berger Keiji Nakajima Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants
description	KNOX and BELL transcription factors regulate distinct steps of diploid development in plants. In the green alga Chlamydomonas reinhardtii, KNOX and BELL proteins are inherited by gametes of the opposite mating types and heterodimerize in zygotes to activate diploid development. By contrast, in land plants such as Physcomitrium patens and Arabidopsis thaliana, KNOX and BELL proteins function in meristem maintenance and organogenesis during the later stages of diploid development. However, whether the contrasting functions of KNOX and BELL were acquired independently in algae and land plants is currently unknown. Here, we show that in the basal land plant species Marchantia polymorpha, gamete-expressed KNOX and BELL are required to initiate zygotic development by promoting nuclear fusion in a manner strikingly similar to that in C. reinhardtii. Our results indicate that zygote activation is the ancestral role of KNOX/BELL transcription factors, which shifted toward meristem maintenance as land plants evolved.
format	article
author	Tetsuya Hisanaga Shota Fujimoto Yihui Cui Katsutoshi Sato Ryosuke Sano Shohei Yamaoka Takayuki Kohchi Frédéric Berger Keiji Nakajima
author_facet	Tetsuya Hisanaga Shota Fujimoto Yihui Cui Katsutoshi Sato Ryosuke Sano Shohei Yamaoka Takayuki Kohchi Frédéric Berger Keiji Nakajima
author_sort	Tetsuya Hisanaga
title	Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants
title_short	Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants
title_full	Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants
title_fullStr	Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants
title_full_unstemmed	Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants
title_sort	deep evolutionary origin of gamete-directed zygote activation by knox/bell transcription factors in green plants
publisher	eLife Sciences Publications Ltd
publishDate	2021
url	https://doaj.org/article/3c722a9bd7e746d08308170b903652d4
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Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants

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