{"refrec":{"BRefID":367355,"RR":"<b>Chaban, E.; Ekimova, I.; Stanovova, M.; Schepetov, D.</b> (2023). Integrative analysis of <i>Retusa pertenuis</i> (Heterobranchia: Cephalaspidea) from Arctic and Russian Far East Seas with discussion of its morphology, validity and population structure. <i>Diversity 15(9)</i>: 974. <a href=\"https://dx.doi.org/10.3390/d15090974\" target=\"_blank\">https://dx.doi.org/10.3390/d15090974</a>","BEntID":365080,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Diversity 15(9)</i>: 974. <a href=\"https://dx.doi.org/10.3390/d15090974\" target=\"_blank\">https://dx.doi.org/10.3390/d15090974</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Chaban, E.; Ekimova, I.; Stanovova, M.; Schepetov, D.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Chaban, E. <i>et al.</i>","Englishabstract":"<i>Retusa pertenuis</i> is still formally considered a junior subjective synonym of <i>Retusa obtusa</i>, despite previous data indicating <i>R</i>. <i>pertenuis</i> and <i>R</i>. <i>obtusa</i> differ significantly in copulatory system morphology. In this paper, we study the species identity and population structure of <i>R</i>. <i>pertenuis</i> with an integrative approach combining morphological and molecular data. The external morphology, head copulatory system and gizzard plates were studied using light microscopy and scanning electron microscopy. We also obtained two mitochondrial (COI and 16S) and two nuclear (H3 and 28S) markers to test the monophyly of <i>R</i>. <i>pertenuis</i> and <i>R</i>. <i>obtusa</i>. Populations from the White Sea, Sea of Okhotsk and Sea of Japan were studied using COI and 18S molecular markers. Our results show that <i>Retusa obtusa sensu lato</i> represents a species complex of at least four species: the nominative species occurring in the North Atlantic, the widely distributed <i>R</i>. <i>pertenuis</i> and two additional species whose identities should be clarified in further studies. <i>Retusa pertenuis</i> geographic range encompasses the North Atlantic, Eurasia’s northern seas, the Canadian Arctic, the Bering Sea, the Sea of Okhotsk and the Sea of Japan. Within <i>R</i>. <i>pertenuis’s</i> range, this species demonstrates a wide variability in shell morphology.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Integrative analysis of <i>Retusa pertenuis</i> (Heterobranchia: Cephalaspidea) from Arctic and Russian Far East Seas with discussion of its morphology, validity and population structure","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"mollusca; gastropoda; Retusidae; biodiversity; morphology; taxonomy; haplotypes; populations genetics; species concept; arctic; North-West Pacific","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2023-09-25","DateCreate":"2023-09-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001076954700001","VABBcode":null,"OpenAcc":1,"DOI":"10.3390/d15090974"},"refs":null,"anarec":{"AnaID":367355,"PubliDate":2023,"Pagination":"974","XtraPublOfAnaID":null,"ISBN":null,"Volume":"15","Issue":"9","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":239468,"SerRR":"Diversity. 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