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American Association for the Advancement of Science, Science, 6215(346), p. 1311-1320, 2014

DOI: 10.1126/science.1251385

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Comparative genomics reveals insights into avian genome evolution and adaptation

Journal article published in 2014 by Guojie Zhang, Y. Zhang, A. Odeen, Z. Wang, G. Zhang, Qiye Li, Q. Li, Cai Li, G. Correction Zhang, Jay F. Storz, Z. Yang, Bo Li, P. Zhang, Denis M. Larkin, Robert W. Meredith and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Birds are the most species-rich class of tetrapod vertebrates and have wide relevance across many research fields. We explored bird macroevolution using full genomes from 48 avian species representing all major extant clades. The avian genome is principally characterized by its constrained size, which predominantly arose because of lineage-specific erosion of repetitive elements, large segmental deletions, and gene loss. Avian genomes furthermore show a remarkably high degree of evolutionary stasis at the levels of nucleotide sequence, gene synteny, and chromosomal structure. Despite this pattern of conservation, we detected many non-neutral evolutionary changes in protein-coding genes and noncoding regions. These analyses reveal that pan-avian genomic diversity covaries with adaptations to different lifestyles and convergent evolution of traits.