1100-人类泛基因组NUMT检测与演化分析 episode artwork

EPISODE · Jun 8, 2026 · 23 MIN

1100-人类泛基因组NUMT检测与演化分析

from 聊聊Sci

这份由多位学者发表的研究报告,通过泛基因组图谱技术对核嵌合线粒体DNA(NUMT)进行了迄今为止最全面的解析。研究团队开发了名为PG-NUMT的新方法,将检测灵敏度提升了2.52倍,并成功构建了包含固定、多态及着丝粒周边事件的高分辨率人类NUMT图谱。调查发现,线粒体DNA的D-loop区段由于具备顺式调节活性,在演化过程中更易受到选择性压力而被清除。此外,研究识别出数个与基因表达或剪接相关的NUMT,并揭示了它们作为串联重复序列来源的演化特征。通过对多种灵长类动物的比较基因组学分析,该研究确立了NUMT是具有生物医学意义且动态变化的基因组组成部分。References:Fu L, Chen J, Lian D, et al. A long-read human pangenome initiative for comprehensive interpretation of nuclear-embedded mitochondrial DNA[J]. Nature Communications, 2026, 17(1): 4371.前往小宇宙评论区与主播互动

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