{"refrec":{"BRefID":392390,"RR":"<b>Madeira, P.; Reddy, M.M.; Assis, J.; Bolton, J.J.; Rothman, M.D.; Anderson, R.J.; Kandjengo, L.; Kreiner, A.; Coleman, M.A.; Wernberg, T.; De Clerck, O.; Leliaert, F.; Bandeira, S. O.; Ada, A.M.; Neiva, J.; Pearson, G.A.; Serrao, E.A.</b> (2024). Cryptic diversity in southern African kelp. <i>NPG Scientific Reports 14(1)</i>: 11071. <a href=\"https://dx.doi.org/10.1038/s41598-024-61336-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-024-61336-4</a>","BEntID":390152,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 14(1)</i>: 11071. <a href=\"https://dx.doi.org/10.1038/s41598-024-61336-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-024-61336-4</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Madeira, P.; Reddy, M.M.; Assis, J.; Bolton, J.J.; Rothman, M.D.; Anderson, R.J.; Kandjengo, L.; Kreiner, A.; Coleman, M.A.; Wernberg, T.; De Clerck, O.; Leliaert, F.; Bandeira, S. O.; Ada, A.M.; Neiva, J.; Pearson, G.A.; Serrao, E.A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Madeira, P. <i>et al.</i>","Englishabstract":"The southern coast of Africa is one of the few places in the world where water temperatures are predicted to cool in the future. This endemism-rich coastline is home to two sister species of kelps of the genus <i>Ecklonia maxima</i> and <i>Ecklonia radiata</i>, each associated with specific thermal niches, and occuring primarily on opposite sides of the southern tip of Africa. Historical distribution records indicate that <i>E. maxima</i> has recently shifted its distribution ~ 70&nbsp;km eastward, to sites where only <i>E. radiata</i> was previously reported. The contact of sister species with contrasting thermal affinities and the occurrence of mixed morphologies raised the hypothesis that hybridization might be occurring in this contact zone. Here we describe the genetic structure of the genus <i>Ecklonia</i> along the southern coast of Africa and investigate potential hybridization and cryptic diversity using a combination of nuclear microsatellites and mitochondrial markers. We found that both species have geographically discrete genetic clusters, consistent with expected phylogeographic breaks along this coastline. In addition, depth-isolated populations were found to harbor unique genetic diversity, including a third <i>Ecklonia</i> lineage. Mito-nuclear discordance and high genetic divergence in the contact zones suggest multiple hybridization events between <i>Ecklonia</i> species. Discordance between morphological and molecular identification suggests the potential influence of abiotic factors leading to convergent phenotypes in the contact zones. Our results highlight an example of cryptic diversity and hybridization driven by contact between two closely related keystone species with contrasting thermal affinities.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Cryptic diversity in southern African kelp","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-21 01:33:33.772817","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"HOOP NATURE-RESERVE;R PACKAGE;SPECIES LAMINARIALES;POPULATION-GENETICS;ECKLONIA-MAXIMA;CLIMATE CHANGES;AGULHAS-BANK;PHAEOPHYCEAE;PATTERNS;MORPHOLOGY","OtherDescriptors":null,"Notes":null,"AnaPub":2024,"MonPub":null,"DateUpdate":"2025-09-18","DateCreate":"2024-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001223110500071","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-024-61336-4"},"refs":null,"anarec":{"AnaID":392390,"PubliDate":2024,"Pagination":"11071","XtraPublOfAnaID":null,"ISBN":null,"Volume":"14","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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