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- W4221002012 abstract "Endogenous retroviruses (ERVs) are inherited remnants of past retroviruses that colonized host germline over millions of years, providing a sampling of retroviral diversity across time. The utility of ERVs as markers of host genome evolution is augmented by their ability to reveal historic retrovirus-host interactions, given that ERVs are examples of active retroviruses at the time of germline invasion. Here, we utilize the strength of Darwin's finches, a system synonymous with evolutionary studies, for investigating ERV history, revealing recent retrovirus-host interactions in natural populations. By mapping ERV variation across all species of Darwin's finches and comparing with outgroup species, we highlight geographical and historical patterns of retrovirus-host occurrence, utilizing the system as a natural model for evaluating the extent and timing of retroviral activity in hosts undergoing adaptive radiation and colonization of new environments. We found shared ERVs among all samples indicating retrovirus-host associations pre-dating host speciation, as well as considerable ERV variation across populations of the entire Darwin's finches' radiation. Unexpected ERV variation in finch species on different islands suggest historical changes in gene flow and selection. Non-random distribution of ERVs along and between chromosomes, as well as across finch species, suggests association between ERV accumulation and the rapid speciation of Darwin's finches." @default.
- W4221002012 created "2022-04-03" @default.
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- W4221002012 date "2022-03-26" @default.
- W4221002012 modified "2023-09-28" @default.
- W4221002012 title "Spatiotemporal variations in retrovirus-host interactions among Darwin's finches" @default.
- W4221002012 doi "https://doi.org/10.1101/2022.03.25.485756" @default.
- W4221002012 hasPublicationYear "2022" @default.
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