Identification of the sex-determining factor in the liverwort Marchantia polymorpha reveals unique evolution of sex chromosomes in a haploid system
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- Iwasaki, Miyuki
- Graduate School of Biostudies, Kyoto University
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- Kajiwara, Tomoaki
- Graduate School of Biostudies, Kyoto University
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- Yasui, Yukiko
- Graduate School of Biostudies, Kyoto University
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- Yoshitake, Yoshihiro
- Graduate School of Biostudies, Kyoto University
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- Miyazaki, Motoki
- Graduate School of Biostudies, Kyoto University
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- Kawamura, Shogo
- Graduate School of Biostudies, Kyoto University
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- Suetsugu, Noriyuki
- Graduate School of Biostudies, Kyoto University
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- Nishihama, Ryuichi
- Graduate School of Biostudies, Kyoto University; Faculty of Science and Technology, Tokyo University of Science
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- Yamaoka, Shohei
- Graduate School of Biostudies, Kyoto University
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- Wanke, Dierk
- Department Biologie I, Ludwig-Maximilians-University (LMU)
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- Hashimoto, Kenji
- Faculty of Science and Technology, Tokyo University of Science
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- Kuchitsu, Kazuyuki
- Faculty of Science and Technology, Tokyo University of Science
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- Montgomery, Sean A.
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC)
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- Singh, Shilpi
- School of Biological Sciences, Monash University
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- Tanizawa, Yasuhiro
- National Institute of Genetics, Research Organization of Information and Systems
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- Yagura, Masaru
- National Institute of Genetics, Research Organization of Information and Systems
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- Mochizuki, Takako
- National Institute of Genetics, Research Organization of Information and Systems
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- Sakamoto, Mika
- National Institute of Genetics, Research Organization of Information and Systems
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- Nakamura, Yasukazu
- National Institute of Genetics, Research Organization of Information and Systems
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- Liu, Chang
- Institute of Biology, University of Hohenheim
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- Berger, Frédéric
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC)
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- Yamato, Katsuyuki T.
- Faculty of Biology-Oriented Science and Technology (BOST), Kindai University
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- Bowman, John L.
- School of Biological Sciences, Monash University
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- Kohchi, Takayuki
- Graduate School of Biostudies, Kyoto University
Description
Sex determination is a central process for sexual reproduction and is often regulated by a sex determinant encoded on a sex chromosome. Rules that govern the evolution of sex chromosomes via specialization and degeneration following the evolution of a sex determinant have been well studied in diploid organisms. However, distinct predictions apply to sex chromosomes in organisms where sex is determined in the haploid phase of the life cycle: both sex chromosomes, female U and male V, are expected to maintain their gene functions, even though both are non-recombining. This is in contrast to the X-Y (or Z-W) asymmetry and Y (W) chromosome degeneration in XY (ZW) systems of diploids. Here, we provide evidence that sex chromosomes diverged early during the evolution of haploid liverworts and identify the sex determinant on the Marchantia polymorpha U chromosome. This gene, Feminizer, encodes a member of the plant-specific BASIC PENTACYSTEINE transcription factor family. It triggers female differentiation via regulation of the autosomal sex-determining locus of FEMALE GAMETOPHYTE MYB and SUPPRESSOR OF FEMINIZATION. Phylogenetic analyses of Feminizer and other sex chromosome genes indicate dimorphic sex chromosomes had already been established 430 mya in the ancestral liverwort. Feminizer also plays a role in reproductive induction that is shared with its gametolog on the V chromosome, suggesting an ancestral function, distinct from sex determination, was retained by the gametologs. This implies ancestral functions can be preserved after the acquisition of a sex determination mechanism during the evolution of a dominant haploid sex chromosome system.
Journal
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- Current Biology
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Current Biology 31 (24), 5522-5532, 2021-12
Elsevier BV
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Keywords
Details 詳細情報について
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- CRID
- 1050290537378087680
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- NII Article ID
- 120007179331
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- HANDLE
- 2433/266631
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- ISSN
- 09609822
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- Crossref
- CiNii Articles
- KAKEN