首页> 外文期刊>Journal of Molluscan Studies >The complete mitochondrial genomes of four Baikal molluscs from the endemic family Baicaliidae (Caenogastropoda: Truncatelloida)
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The complete mitochondrial genomes of four Baikal molluscs from the endemic family Baicaliidae (Caenogastropoda: Truncatelloida)

机译:来自人群家庭的四个贝加尔软体动物的完全线粒体基因组(Caenogastrophoda:truncatelloida)

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摘要

Here, we present the complete mitochondrial (mt) genomes of four members of the Baicaliidae Fisher, 1885, a truncatelloidean family that is endemic to Lake Baikal (East Siberia). The mt genomes are those of Korotnewia korotnevi (15,171 bp), Godlewskia godlewskii (15,224 bp), Baicalia tumformis (15,127) and Maackia herderiana (15,154 bp). All these mt genomes contain 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes and 22 transfer RNA (tRNA) genes. We detected non-canonical base pairs in some of the tRNA genes and variable numbers of non-coding spacers; some tRNAs do not have a T psi C loop. We found gene order to be highly conserved in these Lake Baikal species and similar to the majority of caenogastropod mt genomes available on GenBank. A position of the putative control region is delimited to the non-coding region between trnF and the cox3 gene. It contains the 'GAA(A)nT' motif at the 3' end and is similar to the replication origin found in most Caenogastropoda studied to date. We also compared the evolutionary rates of different genes to evaluate their use in different kinds of population or phylogenetic studies of this group of gastropods.
机译:在这里,我们介绍了Baicaliidae Fisher,1885年四个成员的完整线粒体(MT)基因组,这是一个对贝加尔湖(东西伯利亚)的特有的Truncatelloidean家族。 MT基因组是Korotnewia Korotnevi(15,171 BP),Godlewskia Godlewskii(15,224 bp),Baicalia tumformis(15,127)和Maackia Herderiana(15,154 bp)。所有这些MT基因组含有13个蛋白质编码基因,2个核糖体RNA(RNA)基因和22个转移RNA(TRNA)基因。我们在一些TRNA基因中检测到非规范碱对和可变数量的非编码间隔物;有些字体没有t psi c循环。我们发现基因命令在这些贝加尔湖湖泊物种中得到高度保守,类似于Genbank上可用的大多数Caenogetropod Mt基因组。推定控制区域的位置界定到TRNF和COX3基因之间的非编码区域。它在3'末端包含“Gaa(a)nt”图案,类似于迄今为止学习的大多数Caenogastropoda中发现的复制源。我们还比较了不同基因的进化速率,以评估它们对该组胃脂域的不同种群或系统发育研究的使用。

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