Soroka Marianna, Burzyński Artur
a Department of Genetics , University of Szczecin , Szczecin , Poland .
b Institute of Oceanology, Polish Academy of Sciences , Sopot , Poland , and.
Mitochondrial DNA A DNA Mapp Seq Anal. 2016 May;27(3):1679-80. doi: 10.3109/19401736.2014.958725. Epub 2014 Oct 15.
Anodonta anatina is a freshwater mussel of the family Unionidae. These mussels have a unique mitochondria inheritance system named doubly uniparental inheritance (DUI). Under DUI males have two, potentially very divergent mitochondrial genomes: F-type inherited from mother and M-type inherited from father. F-type is present in soma whereas M-type is present in gonadal tissues and sperm. Here we report two M-type sequences of complete mitochondrial genomes from Anodonta anatina. They are 16,906 bp long and their sequences are similar (0.1% divergence). The genome organization is identical to the other Unionidean M-type genomes published to date. There are 38 genes, including the recently described M-type specific M ORF. The presence of tRNA-like repeat in one of the noncoding regions, suggests that the control region is located in this area. Nucleotide composition is quite extreme, with AT content (66.2%) higher than in any other of the six published Unionidean M genomes.
无齿蚌是蚌科的一种淡水贻贝。这些贻贝具有一种独特的线粒体遗传系统，称为双单亲遗传（DUI）。在DUI系统下，雄性有两个可能差异很大的线粒体基因组：从母亲遗传而来的F型和从父亲遗传而来的M型。F型存在于体细胞中，而M型存在于性腺组织和精子中。在此，我们报告了无齿蚌完整线粒体基因组的两个M型序列。它们长度为16,906 bp，序列相似（差异为0.1%）。基因组结构与迄今为止公布的其他蚌科M型基因组相同。有38个基因，包括最近描述的M型特异性M ORF。在一个非编码区域存在类似tRNA的重复序列，表明控制区域位于该区域。核苷酸组成相当极端，AT含量（66.2%）高于已公布的其他六个蚌科M基因组中的任何一个。
