{"refrec":{"BRefID":348222,"RR":"<b>Li, Q.; Li, Y.; Na, J.; Han, X.; Paterson, G.L.J.; Liu, K.; Zhang, D.; Qiu, J.-W.</b> (2021). Description of a new species of <i>Histampica</i> (Ophiuroidea: Ophiothamnidae) from cold seeps in the South China Sea and analysis of its mitochondrial genome. <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 178</i>: 103658. <a href=\"https://dx.doi.org/10.1016/j.dsr.2021.103658\" target=\"_blank\">https://dx.doi.org/10.1016/j.dsr.2021.103658</a>","BEntID":344916,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 178</i>: 103658. <a href=\"https://dx.doi.org/10.1016/j.dsr.2021.103658\" target=\"_blank\">https://dx.doi.org/10.1016/j.dsr.2021.103658</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Li, Q.; Li, Y.; Na, J.; Han, X.; Paterson, G.L.J.; Liu, K.; Zhang, D.; Qiu, J.-W.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Li, Q. <i>et al.</i>","Englishabstract":"Ophiuroids are widely distributed marine benthic organisms, but very few species of ophiuroids have been reported from deep-sea chemosynthetic habitats including hydrothermal vents and cold seeps. In this study, a new species of Ophiothamnidae, <i>Histampica haimaensis</i> sp. nov., collected from cold seeps in the South China Sea, was described based on morphological and genetic analyses. The new species, representing the first known occurrence of <i>Histampica</i> from chemosynthetic habitats, is distinct from its congeners in having long triangular or half elliptical radial shields that are not in contact with each other, four stout, tapering and blunt arm spines, and three or four lateral oral papillae on each side of the jaw, including distally two large and broad papillae and proximally one or two small and narrow papillae. Phylogenetic analysis based on mitochondrial <i>COX1</i> gene supports the morphological identification. A complete mitochondrial genome (mtgenome) of the new species was characterized by genome skimming. It is 15,759 base pairs in length and contains 37 genes including 13 protein coding genes, two ribosomal RNA genes and 22 transfer RNA (tRNA) genes. Among the tRNA genes, <i>trnL</i> and <i>trnS</i> are duplicated. When compared with the mtgenomes from the same family of ophiuroids, the mtgenome of <i>H. haimaensis</i> sp. nov. has undergone four potential historical gene order reversals, and one tandem duplication random loss event. <i>ND1, ND2</i> and <i>ND5</i> each contains a positively selected site, while <i>COX2</i> contains three positively selected sites This study provides morphological description to <i>H. haimaensis</i> sp. nov. and reports the first cold-seep ophiuroid mitochondrial genome with a novel gene order arrangement and signals of positive selection, which may have contributed to adaption of Ophiuroidea to the deep-sea chemosynthetic environments.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Description of a new species of <i>Histampica</i> (Ophiuroidea: Ophiothamnidae) from cold seeps in the South China Sea and analysis of its mitochondrial genome","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-04 01:31:43.136835","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Cold seep; Gene order rearrangement; Mitochondrial genome; Histampica; Ophiuroidea; Positive selection","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-12-16","DateCreate":"2021-12-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000718376900002","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.dsr.2021.103658"},"refs":null,"anarec":{"AnaID":348222,"PubliDate":2021,"Pagination":"103658","XtraPublOfAnaID":null,"ISBN":null,"Volume":"178","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45506,"SerRR":"Deep-Sea Research, Part I. 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