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生物通
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探秘口腔微生物中的神秘 RNA:类病毒 RNA Obelisk-S.s 的进化奥秘
本研究证实了 Obelisk-S.s 是一类在血链球菌 SK36 转录组中高度丰富的新型类病毒 RNA。虽然目前驱动 Obelisk 在 SK36 中持续存在的进化力量以及其多态性的功能和适应性意义尚不明确,但研究人员推测可能存在多种机制。例如,Obelisk-S.s 可能对宿主细胞的适应性负担较小,或者在某些未知条件下编码有益功能,甚至可能存在类似毒素 - ...
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