Hogan Raissa I, Hopkins Kevin, Wheeler Andrew J, Allcock A Louise, Yesson Chris
Department of Zoology, Ryan Institute, National University of Ireland , Galway , Ireland.
Institute of Zoology, Zoological Society of London, Regent's Park , London , UK.
Mitochondrial DNA A DNA Mapp Seq Anal. 2019 Aug;30(6):764-777. doi: 10.1080/24701394.2019.1634699. Epub 2019 Jul 18.
We present the first documented complete mitogenomes of deep-sea Pennatulacea, representing nine genera and eight families. These include one species each of the deep-sea genera , and , four species each of and , three species of and two species of , as well as one species of the epi- and mesobenthic genus . Seventeen circular genomes ranged from 18,513 bp ( cf. ) to 19,171 bp () and contained all genes standard to octocoral mitochondrial genomes (14 protein-coding genes, two ribosomal RNA genes and one transfer RNA). We found at least three different gene orders in Pennatulacea: the ancestral gene order, the gene order found in bamboo corals (Family Isididae), and a novel gene order. The mitogenome of one species of has a bipartite genome (∼13 kbp and ∼5 kbp), with good evidence that both parts are circular.
我们展示了深海海鳃目有记录以来的首个完整线粒体基因组，涵盖九个属和八个科。其中包括深海属、和各一个物种，和各四个物种，三个物种以及两个物种，还有浅海和中层底栖属的一个物种。17个环状基因组大小从18,513 bp（参照）到19,171 bp（）不等，包含八放珊瑚线粒体基因组的所有标准基因（14个蛋白质编码基因、两个核糖体RNA基因和一个转运RNA）。我们在海鳃目中发现了至少三种不同的基因排列顺序：祖先基因排列顺序、竹珊瑚科（艾氏珊瑚科）中的基因排列顺序以及一种新的基因排列顺序。的一个物种的线粒体基因组具有二分基因组（约13 kbp和约5 kbp），有充分证据表明这两部分都是环状的。
