Exceptionally large mitochondrial fragments to the nucleus in sequenced mollusk genomes

文献类型： 外文期刊

第一作者： Sun, Xiujun

作者： Sun, Xiujun;Yang, Aiguo

作者机构：

关键词： Mitochondrial DNA;mollusk;NUMT

期刊名称：MITOCHONDRIAL DNA PART A （ 影响因子：1.514； 五年影响因子：0.707 ）

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收录情况： SCI

摘要： The available genome sequences of three mollusks {Biomphalaria glabrata, Aplysia californica and Crassostrea gigas) were first used to investigate the nuclear mitochondrial DNAs (NUMTs) in mollusks. The analysis showed that the NUMT contents were high inB. glabrata (17.738 Kb) and C. gigas (17.192 Kb), of which all or almost all mtDNA sequences were transferred to the nucleus, whereas NUMTs are rare (584 bp) in A. californica. The length of NUMTs was 61 to 5492bp for 6. glabrata, 1711 to 15,481 bp forC gigas, and 124 to 460 bp for A. californica. The largest C. gigas NUMT covered 84.9% (15,481 bp) of its mitochondrial genome, which is rarely found in invertebrates so far. No correlation was found between NUMT content and genome size in the three sequenced mollusk genomes.

分类号： Q7

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