Kocot Kevin M, Wollesen Tim, Varney Rebecca M, Schwartz Megan L, Steiner Gerhard, Wanninger Andreas
Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, USA.
Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.
Mitochondrial DNA B Resour. 2019 Sep 23;4(2):3161-3162. doi: 10.1080/23802359.2019.1666689.
Complete mitochondrial genomes were determined for two scaphopod molluscs: the dentaliid and an unidentified Antarctic gadilid. Both genomes are complete except, in Gadilida sp. indet., a short stretch of nad5 was undetermined and trnR could not be annotated. Organization of the Gadilida sp. genome is nearly identical to that previously reported for the gadilid whereas trnK, nad5, trnD, nad4, and nad4l are transposed to the opposite strand in the previously published genome relative to that of . Phylogenetic analysis of the 13 protein-coding and 2 rRNA genes recovered Scaphopoda, Gadilida, and Dentaliida monophyletic with maximal support.
角贝科动物和一种未鉴定的南极掘足纲动物。除了在未鉴定的南极掘足纲动物中，一段短的NAD5未确定且tRNAR无法注释外，两个基因组都是完整的。未鉴定的南极掘足纲动物的基因组组织与先前报道的掘足纲动物几乎相同，而相对于先前发表的基因组，tRNK、NAD5、tRN D、NAD4和NAD4L在相反链上发生了转位。对13个蛋白质编码基因和2个rRNA基因的系统发育分析得到了最大支持，恢复了掘足纲、南极掘足纲和角贝科的单系性。
