2020 Fiscal Year Research-status Report
Parallel evolution of complex adaptations through introgression: the study case of pelvic fin brooding in Sulawesi medaka.
| Project/Area Number |
19K16203
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
Montenegro Javier 国立研究開発法人海洋研究開発機構, 超先鋭研究開発部門(超先鋭技術開発プログラム), 特任研究員 (70835347)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | QTL / Medaka / Complex trait / Introgression / Genome |
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| Outline of Annual Research Achievements |
All pelvic-fin brooding species of medaka present a unique set of characteristics which synergically work for this reproductive mode to function. It was demonstrated that all pelvic fin brooder species present elongated pelvic-fins used to hold the eggs, a conspicuous abdominal concavity where the eggs are kept, and longer eggs incubation period. All characteristics above were absent across congeneric non-pelvic-fin brooder species. We discover that pelvic-fin brooding is polygenetic in origin and that all loci associated to this reproductive mode are not genetically linked. We found no evidence supporting the hypothesis that the parallel evolution of this reproductive mode was facilitated by introgressive hybridization between clades of brooder species.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
All main objectives and question have been addressed satisfactorily. Nonetheless the ongoing COVID pandemic have restricted the access to field work and samples that will be ideal to analyse.
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| Strategy for Future Research Activity |
The project is currently on the final stages and all primary conclusions has been achieved.
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| Causes of Carryover |
The ongoing COVID pandemic has make difficult to perform field work which will be ideal for the smooth continuation of this proposal. As a mitigation plan I have been looking to establish collaborations with other researchers which could allow me to continue developing this proposal.
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Research Products
(1 results)
