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生物通
12 天
《SCIENCE》细菌演化与氧气适应的地质时间尺度:解锁早期微生物演化 ...
微生物生命在地球历史中占据主导地位,但留下的化石记录却十分稀少,这极大地阻碍了我们对远古时期生物演化的理解。不过,细菌的新陈代谢在地球化学记录中留下了印记,其中最显著的便是大氧化事件(Great Oxidation Event,GOE)。研究人员将机器学习与系统发育调和相结合,推断细菌祖先向有氧生活方式的转变,并将其与 GOE ...
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