期刊
TRENDS IN GENETICS
卷 25, 期 11, 页码 482-486出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tig.2009.09.005
关键词
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资金
- Griffith University
- Australia-India Strategic Research Fund
- Allan Wilson Centre for Molecular Ecology and Evolution
- New Zealand Marsden Fund
Using entire modern and ancient mitochondrial genomes of Adelie penguins (Pygoscelis adeliae) that are up to 44000 years old, we show that the rates of evolution of the mitochondrial genome are two to six times greater than those estimated from phylogenetic comparisons. Although the rate of evolution at constrained sites, including nonsynonymous positions and RNAs, varies more than twofold with time (between shallow and deep nodes), the rate of evolution at synonymous sites remains the same. The time-independent neutral evolutionary rates reported here would be useful for the study of recent evolutionary events.
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