Australian Research Council Centre of Excellence in Plant Energy Biology, Bayliss Building, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
BMC Biol. 2013 Apr 15;11:30. doi: 10.1186/1741-7007-11-30.
The huge variation between mitochondrial genomes makes untangling their evolutionary histories difficult. Richardson et al. report on the remarkably unaltered 'fossil' genome of the tulip tree, giving us many clues as to how the mitochondrial genomes of flowering plants have evolved over the last 150 million years, and raising questions about how such extraordinary sequence conservation can be maintained.
线粒体基因组之间的巨大差异使得厘清它们的进化历史变得困难。Richardson 等人报告了郁金香树惊人的未改变的“化石”基因组，这为我们提供了许多线索，说明开花植物的线粒体基因组在过去 1.5 亿年中是如何进化的，并提出了关于如何维持这种非凡的序列保守性的问题。
