Complete mitochondrial genome of the sea slug, Placida sp., contains unusual noncoding regions
文献类型: 外文期刊
作者: Fan, Xiao 1 ; Qiao, Hongjin 3 ; Xu, Dong 1 ; Cao, Shaona 2 ; Zhang, Xiaowen 1 ; Wang, Yitao 2 ; Mou, Shanli 1 ; Ye, Naiha 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Qingdao Agr Univ, Coll Anim Sci & Technol, Qingdao 266071, Peoples R China
3.Shandong Marine Fisheries Res Inst, Yantai 264006, Peoples R China
关键词: Placida sp;complete mitochondrial genome;unusual noncoding regions
期刊名称:MITOCHONDRIAL DNA ( 影响因子:0.925; 五年影响因子:0.994 )
ISSN:
年卷期:
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收录情况: SCI
摘要: The complete sequence (14,751 bp) of the mitochondrial DNA (mtDNA) of the opisthobranch gastropod Placida sp. was determined using long PCR and genome-walking techniques. The genome contains 13 protein-coding genes (PCG), 2 ribosomal RNA (rRNA), 22 transfer RNA (tRNA) genes that are typical of metazoan mtDNA, and 2 lengthy noncoding regions with a total length of 1441 bp. All the tRNA genes have general secondary structures without reduced Tor D stems. The mitochondrial gene arrangement of Placida sp. is almost identical to that of sea slugs, whereas the tRNA gene arrangement is different from other animals outside. Sacoglossa in the Euthyneura. A phylogenetic analysis based on the mitochondrial genome of Euthyneura indicated that Placida sp. and Placida dendritica are closely related to Elysia chlorotica as a sister taxon, which strongly supports their close phylogenetic affinity.
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