2013 Fiscal Year Final Research Report
Reconstruction of phylogenetic and biogeographic scenarios of ranoid frogs based on SINE and other molecular markers
| Project/Area Number |
23770088
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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 |
Biodiversity/Systematics
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 転移因子 / SINE / 生物系統地理 / 系統解析 / 両生類 / カエル亜目 / ヒメアマガエル類 / マダガスカルガエル類 |
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| Research Abstract |
Superfamily Ranoides is a large anuran taxon nested in suborder Neobatrachia. It has been considered that lineage splits and distribution expansions of many ranoid groups were occurred in association with the segmentation and collisions of the Gondowanan landmasses. In this taxon, many phylogenetic and biogeographic issues remain unresolved by common molecular phylogenetic analyses based on DNA and/or protein sequence data. To resolve these problems, I aimed to perform phylogenetic analyses based on SINE - a nuclear transposable elements.- information. Although any SINEs had not been found in neobatrachians, we discovered SINE2-1XT homologues from many frog genomes including neobatrachian species. Also the same SINE elements were found from the urodelan and caecilian genomes, indicating that this SINE element had originated in a common ancestor of all living amphibians. These results enable applications of SINE phylogeny in not only ranoids but also many amphibian taxa.
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[Presentation] From Antarctica or Asia? New colonization scenario for Australian‐New Guinean narrow mouth toads suggested from the findings on a mysterious genus Gastrophrynoides2012
Author(s)
Kurabayashi, A., Matsui, M., Daicus, M.B., ong, H.-S., Ahmad, N., Ahmad, S., Kuramoto, M., Hamidy,A., & Sumida, M.
Organizer
7th World Congress of Herpetlogy
Place of Presentation
Vancouver, Canada
Year and Date
20120808-14
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