Evolution of bird genomes—a transposon's-eye view

Kapusta, Aurélie and Suh, Alexander ORCID: https://orcid.org/0000-0002-8979-9992 (2017) Evolution of bird genomes—a transposon's-eye view. Annals of the New York Academy of Sciences, 1389 (1). pp. 164-185. ISSN 0077-8923

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Abstract

Birds, the most species-rich monophyletic group of land vertebrates, have been subject to some of the most intense sequencing efforts to date, making them an ideal case study for recent developments in genomics research. Here, we review how our understanding of bird genomes has changed with the recent sequencing of more than 75 species from all major avian taxa. We illuminate avian genome evolution from a previously neglected perspective: their repetitive genomic parasites, transposable elements (TEs) and endogenous viral elements (EVEs). We show that (1) birds are unique among vertebrates in terms of their genome organization; (2) information about the diversity of avian TEs and EVEs is changing rapidly; (3) flying birds have smaller genomes yet more TEs than flightless birds; (4) current second-generation genome assemblies fail to capture the variation in avian chromosome number and genome size determined with cytogenetics; (5) the genomic microcosm of bird–TE “arms races” has yet to be explored; and (6) upcoming third-generation genome assemblies suggest that birds exhibit stability in gene-rich regions and instability in TE-rich regions. We emphasize that integration of cytogenetics and single-molecule technologies with repeat-resolved genome assemblies is essential for understanding the evolution of (bird) genomes.

Item Type: Article
Additional Information: Publisher Copyright: © 2016 New York Academy of Sciences.
Uncontrolled Keywords: bird,chromosome,endogenous virus,genome evolution,long-read sequencing,transposable element,neuroscience(all),biochemistry, genetics and molecular biology(all),history and philosophy of science ,/dk/atira/pure/subjectarea/asjc/2800
Faculty \ School: Faculty of Science > School of Biological Sciences
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Depositing User: LivePure Connector
Date Deposited: 16 Sep 2022 15:35
Last Modified: 24 Sep 2022 07:15
URI: https://ueaeprints.uea.ac.uk/id/eprint/88410
DOI: 10.1111/nyas.13295

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