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Horizontal Transpos...
Horizontal Transposon Transfer and Its Implications for the Ancestral Ecology of Hydrophiine Snakes
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- Galbraith, James D. (author)
- Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia.;Univ Exeter, Ctr Ecol & Conservat, Penryn Campus, Penryn TR10 9FE, Cornwall, England.
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- Ludington, Alastair J. (author)
- Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia.
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- Sanders, Kate L. (author)
- Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia.
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- Amos, Timothy G. (author)
- Univ New South Wales, Sch Biotechnol & Biomol Sci, Sydney, NSW 2052, Australia.;Garvan Inst Med Res, Sydney, NSW 2010, Australia.
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- Thomson, Vicki A. (author)
- Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia.
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- Tuipulotu, Daniel Enosi (author)
- Univ New South Wales, Sch Biotechnol & Biomol Sci, Sydney, NSW 2052, Australia.;Australian Natl Univ, John Curtin Sch Med Res, Div Immun Inflammat & Infect, Canberra, ACT 2601, Australia.
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- Dunstan, Nathan (author)
- Venom Supplies Pty Ltd, Tanunda, SA 5252, Australia.
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- Edwards, Richard J. (author)
- Univ New South Wales, Sch Biotechnol & Biomol Sci, Sydney, NSW 2052, Australia.
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- Suh, Alexander (author)
- Uppsala universitet,Systematisk biologi,Univ East Anglia, Sch Biol Sci, Norwich Res Pk, Norwich, Norfolk, England.
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- Adelson, David L. (author)
- Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia.;South Australian Museum, Adelaide, SA 5000, Australia.
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Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia;Univ Exeter, Ctr Ecol & Conservat, Penryn Campus, Penryn TR10 9FE, Cornwall, England. Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia. (creator_code:org_t)
- 2022-01-25
- 2022
- English.
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In: Genes. - : MDPI. - 2073-4425. ; 13:2
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Abstract
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- Transposable elements (TEs), also known as jumping genes, are sequences able to move or copy themselves within a genome. As TEs move throughout genomes they often act as a source of genetic novelty, hence understanding TE evolution within lineages may help in understanding environmental adaptation. Studies into the TE content of lineages of mammals such as bats have uncovered horizontal transposon transfer (HTT) into these lineages, with squamates often also containing the same TEs. Despite the repeated finding of HTT into squamates, little comparative research has examined the evolution of TEs within squamates. Here we examine a diverse family of Australo-Melanesian snakes (Hydrophiinae) to examine if the previously identified, order-wide pattern of variable TE content and activity holds true on a smaller scale. Hydrophiinae diverged from Asian elapids similar to 30 Mya and have since rapidly diversified into six amphibious, similar to 60 marine and similar to 100 terrestrial species that fill a broad range of ecological niches. We find TE diversity and expansion differs between hydrophiines and their Asian relatives and identify multiple HTTs into Hydrophiinae, including three likely transferred into the ancestral hydrophiine from fish. These HTT events provide the first tangible evidence that Hydrophiinae reached Australia from Asia via a marine route.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- transposable element
- comparative genomics
- Serpentes
Publication and Content Type
- ref (subject category)
- art (subject category)
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Galbraith, James ...
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Ludington, Alast ...
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Sanders, Kate L.
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Amos, Timothy G.
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Thomson, Vicki A ...
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Tuipulotu, Danie ...
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show more...
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Dunstan, Nathan
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Edwards, Richard ...
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Suh, Alexander
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Adelson, David L ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
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Uppsala University