红头鹦鹉（）的完整线粒体基因组揭示了该目内一种新的基因重排。
The complete mitochondrial genome of red-fronted parrot () revealed a new gene rearrangement within the order .
作者信息
Urantówka Adam Dawid, Kroczak Aleksandra, Mackiewicz Paweł
机构信息
Department of Genetics, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland.
Department of Genomics, Faculty of Biotechnology, Wrocław University, Wrocław, Poland.
出版信息
Mitochondrial DNA B Resour. 2017 Nov 25;2(2):833-835. doi: 10.1080/23802359.2017.1407691.
Vertebrate mitogenomes are thought to be selected for compactness. Therefore, the increasing number of avian mitogenomes comprising duplicated regions is surprising. Such regions were proposed for at least 26 parrot genera based on the length of PCR products. However, complete mitogenomes with the duplications were shown only for six genera. These duplications evolved probably from the ancestral tRNA/tRNA/ND6/tRNA/CR and were subjected to subsequent degeneration. Here, we report the mitogenome of (the subfamily Psittacinae) with a unique duplication tRNA/pseudoND6/CR1/tRNA/ND6/tRNA/CR2. This region is different from all other identified regions and resembles mostly the arrangements in and from the subfamily Arinae.
脊椎动物的线粒体基因组被认为是为了紧凑性而被选择的。因此，包含重复区域的鸟类线粒体基因组数量不断增加，这令人惊讶。基于PCR产物的长度，至少有26个鹦鹉属被提出存在这样的区域。然而，仅在6个属中发现了具有重复的完整线粒体基因组。这些重复可能从祖先的tRNA/tRNA/ND6/tRNA/CR进化而来，并随后发生了退化。在这里，我们报告了（鹦鹉亚科）的线粒体基因组，其具有独特的重复tRNA/假ND6/CR1/tRNA/ND6/tRNA/CR2。该区域与所有其他已鉴定区域不同，并且最类似于亚科Arinae中的 和 的排列。
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