DNA Barcoding and Species Delimitation for Dogfish Sharks Belonging to the Squalus Genus (Squaliformes: Squalidae)

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dc.contributor.authorAriza, Ailton A. [UNESP]
dc.contributor.authorAdachi, Aisni M. C. L. [UNESP]
dc.contributor.authorRoque, Pollyana
dc.contributor.authorHazin, Fabio H. V.
dc.contributor.authorVianna, Marcelo
dc.contributor.authorRotundo, Matheus M.
dc.contributor.authorDelpiani, Sergio M.
dc.contributor.authorde Astarloa, Juan M. Díaz
dc.contributor.authorDelpiani, Gabriela
dc.contributor.authorOliveira, Claudio [UNESP]
dc.contributor.authorForesti, Fausto [UNESP]
dc.contributor.authorCruz, Vanessa P. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal Rural de Pernambuco
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Santa Cecília
dc.contributor.institutionInstituto de Investigaciones Marinas y Costeras
dc.contributor.institutionCABA AAJ
dc.date.accessioned2023-03-01T20:58:49Z
dc.date.available2023-03-01T20:58:49Z
dc.date.issued2022-07-01
dc.description.abstractThe Squalus genus comprises a group of small demersal sharks occurring circumglobally, popularly known as dogfish sharks. This genus exhibits a conserved morphology, thus making correct morphological identification difficult. Considering these taxonomic problems and the scarcity of molecular data, the present study aimed to identify Squalus genus MOTUs, using DNA barcoding for species delimitation via ABGD (automatic barcode gap discovery), PTP (Poisson tree process), and GMYC (general mixed Yule coalescent) employing the mitochondrial COI gene. A total of 69 sequences were generated from samples obtained from the American coast in both the Atlantic and Pacific Oceans. The ABGD analysis was the most conservative among the three applied delimitations, indicating three taxonomic units, while the PTP analysis revealed nine MOTUs, with two conflicting units noted between S. clarkae + S. mitsukurii and S. albicaudus + S. cubensis. The GMYC analysis indicated an excessive division, with S. acanthias and S. mitsukurii subdivided into six MOTUs each and S. blainville, into four. These findings demonstrated that Squalus presents a complex of previously defined species, with misidentified samples deposited in databases leading to difficulties in analyzing the real distribution and diversity of species belonging to this genus. Thus, further efforts to highlight possible new species are recommended.en
dc.description.affiliationLaboratório de Biologia e Genética de Peixes Instituto de Biociências de Botucatu Universidade Estadual Paulista
dc.description.affiliationLaboratório de Oceanografia Pesqueira Universidade Federal Rural de Pernambuco
dc.description.affiliationLaboratório de Biologia e Tecnologia Pesqueira Universidade Federal do Rio de Janeiro
dc.description.affiliationAcervo Zoológico da Universidade Santa Cecília Universidade Santa Cecília
dc.description.affiliationGrupo de Biotaxonomía Morfológica y Molecular de Peces Departamento de Biología Facultad de Ciencias Exactas y Naturales Instituto de Investigaciones Marinas y Costeras, Funes 3250
dc.description.affiliationConsejo Nacional de Investigaciones Científicas y Técnicas CABA AAJ
dc.description.affiliationUnespLaboratório de Biologia e Genética de Peixes Instituto de Biociências de Botucatu Universidade Estadual Paulista
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 107761/2019-0 to A.A.A.
dc.description.sponsorshipIdFAPESP: 2014/26508-3
dc.description.sponsorshipIdFAPESP: 2016/09204-6
dc.description.sponsorshipIdFAPESP: 2018/20610-1
dc.description.sponsorshipIdCNPq: 306054/2006-0
dc.identifierhttp://dx.doi.org/10.3390/d14070544
dc.identifier.citationDiversity, v. 14, n. 7, 2022.
dc.identifier.doi10.3390/d14070544
dc.identifier.issn1424-2818
dc.identifier.scopus2-s2.0-85134490918
dc.identifier.urihttp://hdl.handle.net/11449/241366
dc.language.isoeng
dc.relation.ispartofDiversity
dc.sourceScopus
dc.subjectCOI
dc.subjectdogsharks
dc.subjectElasmobranchii
dc.subjectmitochondrial DNA
dc.subjectspecies identification
dc.titleDNA Barcoding and Species Delimitation for Dogfish Sharks Belonging to the Squalus Genus (Squaliformes: Squalidae)en
dc.typeArtigo

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