2016 Fiscal Year Final Research Report
Population genomics of mating system evolution in Closterium pslc
| Project/Area Number |
15K18583
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Evolutionary biology
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| Research Institution | Chiba University |
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Principal Investigator |
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| Research Collaborator |
TSUCHIKANE Yuki
SEKIMOTO Hiroyuki
NISHIYAMA Tomoaki
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 自家交配 / リシークエンス解析 |
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| Outline of Final Research Achievements |
The evolution of self-fertilization from outcrossing is the prevalent events in plants, animals and fungus. Here we studied the genomic causes and consequences of self-fertilization through a re-sequencing analysis of the green algae, Closterium pslc, in which self-fertilizing (homothallic) strains evolved from outcrossing (heterothallic) strains multiple times repeatedly. We found, for example, that genomes of homothallic strains tend to be smaller, while segmental duplications seem prevalent in heterothallic genomes. Sex-specific genes found in heterothallic strains were also identified in the genomes of independently evolved homothallic strains.
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| Free Research Field |
進化生物学
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