{"refrec":{"BRefID":310224,"RR":"<b>Small, M.P.; Gosling, E.M.</b> (2000). Species relationships and population structure of <i>Littorina saxatilis</i> Olivi and <i>L. tenebrosa</i> Montagu in Ireland using single-strand conformational polymorphisms (SSCPs) of cytochrome <i>b</i> fragments. <i>Mol. Ecol. 9(1)</i>: 39-52. <a href=\"https://dx.doi.org/10.1046/j.1365-294x.2000.00824.x\" target=\"_blank\">https://dx.doi.org/10.1046/j.1365-294x.2000.00824.x</a>","BEntID":302555,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mol. Ecol. 9(1)</i>: 39-52. <a href=\"https://dx.doi.org/10.1046/j.1365-294x.2000.00824.x\" target=\"_blank\">https://dx.doi.org/10.1046/j.1365-294x.2000.00824.x</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Small, M.P.; Gosling, E.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Small, M.P.; Gosling, E.M.","Englishabstract":"<i>Littorina saxatilis</i> is a ubiquitous snail of intertidal habitats in the North Atlantic. Shell type in littorinids is extremely polymorphic and defined by habitat. Taxonomy based upon shell type has been revised in the light of anatomic and genetic information, but uncertainties remain. In this study, the population structure of <i>L. saxatilis</i> and <i>L. tenebrosa</i> was studied at 11 sites in Ireland using single‐strand conformational polymorphisms of a 375‐bp portion of the cytochrome <i>b</i> gene, and the status of <i>L. tenebrosa</i>, the small, fragile‐shelled, brackish water type, was considered. The genetic patterns among <i>L. saxatili</i>s and <i>L. tenebrosa</i> populations were examined over varying distances and <i>L. tenebrosa</i> was compared with adjacent <i>L. saxatilis</i> populations at four sites on the west coast of Ireland and one site on the east coast. Haplotype diversity was high with 32 haplotypes present among 995 individuals. Pairwise tests suggest gene flow over small scales among and between habitat types and may reflect the stochastic legacy of postglacial recolonization over larger scales. In <span class=\"smallCaps\">amova</span> tests, geography explained nearly twice as much of the variance (30%) as habitat type (18%), indicating that gene flow is more restricted by distance than by habitat type, and supporting the status of <i>L. tenebrosa</i> as an ecotype of <i>L. saxatilis</i> rather than a separate species.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Species relationships and population structure of <i>Littorina saxatilis</i> Olivi and <i>L. tenebrosa</i> Montagu in Ireland using single-strand conformational polymorphisms (SSCPs) of cytochrome <i>b</i> fragments","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:33:17.365235","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2000,"MonPub":null,"DateUpdate":"2019-04-08","DateCreate":"2019-04-08","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000085368000004","VABBcode":null,"OpenAcc":0,"DOI":"10.1046/j.1365-294x.2000.00824.x"},"refs":null,"anarec":{"AnaID":310224,"PubliDate":2000,"Pagination":"39-52","XtraPublOfAnaID":null,"ISBN":null,"Volume":"9","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45425,"SerRR":"Molecular Ecology. Blackwell: Oxford.  ISSN 0962-1083; e-ISSN 1365-294X","StandardTitleSer":"Molecular Ecology","ISSN":"0962-1083","AbbrevSer":"Mol. 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