The persimmon genome reveals clues to the evolution of a lineage-specific sex determination system in plants
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- Nathan M. Springer
- editor
Bibliographic Information
- Other Title
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- Correction: The persimmon genome reveals clues to the evolution of a lineage-specific sex determination system in plants
Description
Most angiosperms bear hermaphroditic flowers, but a few species have evolved outcrossing strategies, such as dioecy, the presence of separate male and female individuals. We previously investigated the mechanisms underlying dioecy in diploid persimmon (D. lotus) and found that male flowers are specified by repression of the autosomal gene MeGI by its paralog, the Y-encoded pseudo-gene OGI. This mechanism is thought to be lineage-specific, but its evolutionary path remains unknown. Here, we developed a full draft of the diploid persimmon genome (D. lotus), which revealed a lineage-specific whole-genome duplication event and provided information on the architecture of the Y chromosome. We also identified three paralogs, MeGI, OGI and newly identified Sister of MeGI (SiMeGI). Evolutionary analysis suggested that MeGI underwent adaptive evolution after the whole-genome duplication event. Transformation of tobacco plants with MeGI and SiMeGI revealed that MeGI specifically acquired a new function as a repressor of male organ development, while SiMeGI presumably maintained the original function. Later, a segmental duplication event spawned MeGI’s regulator OGI on the Y-chromosome, completing the path leading to dioecy, and probably initiating the formation of the Y-chromosome. These findings exemplify how duplication events can provide flexible genetic material available to help respond to varying environments and provide interesting parallels for our understanding of the mechanisms underlying the transition into dieocy in plants.
Journal
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- PLOS Genetics
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PLOS Genetics 16 (2), e1008566-, 2020-02-18
Public Library of Science (PLoS)
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Keywords
- Bioinformatics
- Arabidopsis Thaliana
- Bioengineering
- Plant Science
- Brassica
- Flowers
- QH426-470
- Plant Genetics
- Research and Analysis Methods
- Chromosomes, Plant
- Evolution, Molecular
- Database and Informatics Methods
- Model Organisms
- Plant and Algal Models
- Genetics
- Plant Genomics
- Molecular Biology Techniques
- Molecular Biology
- Flowering Plants
- Phylogeny
- Sex Chromosomes
- Plant Anatomy
- Gene Mapping
- Organisms
- Biology and Life Sciences
- Eukaryota
- Computational Biology
- Correction
- Genomics
- Plants
- Diospyros
- Sex Determination Processes
- Genome Analysis
- Diploidy
- Experimental Organism Systems
- Lotus
- Animal Studies
- Engineering and Technology
- Plant Biotechnology
- Sequence Analysis
- Sequence Alignment
- Genome, Plant
- Research Article
- Biotechnology
Details 詳細情報について
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- CRID
- 1050565162620602624
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- NII Article ID
- 120006825997
- 120006800713
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- ISSN
- 15537404
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- HANDLE
- 2433/245870
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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
- OpenAIRE