Matches in SemOpenAlex for { <https://semopenalex.org/work/W3008475941> ?p ?o ?g. }
- W3008475941 abstract "Abstract The transition of terrestrial snakes to marine life approximately 10 million years ago (Ma) is ideal for exploring adaptive evolution. Sea snakes possess phenotype specializations including laterally compressed bodies, paddle-shaped tails, valvular nostrils, cutaneous respiration, elongated lungs and salt glands yet knowledge on the genetic underpinnings of the transition remain limited. Herein, we report the first genome of Shaw’s sea snake (Hydrophis curtus) and use it to investigate sea snake secondary marine adaptation. A hybrid assembly strategy obtains a high quality genome. Gene family analyses date a pulsed coding-gene expansion to about 20 Ma, and these genes associate strongly with adaptations to marine environments. Analyses of selection pressure and convergent evolution discover the rapid evolution of protein-coding genes, and some convergent features. Additionally, 108 conserved non-coding elements appear to have evolved quickly, and these may underpin the phenotypic changes. Transposon elements may contribute to adaptive specializations by inserting into genomic regions around functionally related coding genes. The integration of genomic and transcriptomic analyses indicates independent origins and different components in sea snake and terrestrial snake venom; the venom gland of the sea snake harbours the highest PLA2 (17.23%) expression in selected elapids and these genes may organize tandemly in the genome. These analyses provide insights into the genetic mechanisms that underlay the secondary adaptation to marine and venom production of this sea snake." @default.
- W3008475941 created "2020-03-06" @default.
- W3008475941 creator A5002517693 @default.
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- W3008475941 date "2020-02-20" @default.
- W3008475941 modified "2023-10-12" @default.
- W3008475941 title "The genome of Shaw’s sea snake (Hydrophis curtus) reveals secondary adaptation to its marine environment" @default.
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