期刊
SCIENCE
卷 346, 期 6215, 页码 1311-1320出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1251385
关键词
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资金
- BGI
- Marie Curie International Incoming Fellowship [300837]
- Danish National Research Foundation [DNRF94]
- Lundbeck Foundation [R52-A5062]
- Danish Council for Independent Research [10-081390]
- Howard Hughes Medical Institute
- NIH [DP1OD000448]
- Biotechnology and Biological Sciences Research Council [BB/J010170/1, BB/J010170/2, BB/K008226/1, BB/K008226/2] Funding Source: researchfish
- Villum Fonden [00007370] Funding Source: researchfish
- BBSRC [BB/J010170/2, BB/K008226/1, BB/J010170/1, BB/K008226/2] Funding Source: UKRI
- Direct For Biological Sciences
- Division Of Environmental Biology [1241059] Funding Source: National Science Foundation
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [0841821] Funding Source: National Science Foundation
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.
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