Revision of section Setacea of the genus Batrachospermum (Batrachospermales, Rhodophyta) with emphasis on specimens from Brazil

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dc.contributor.authorRossignolo, Natalia L. [UNESP]
dc.contributor.authorNecchi, Orlando [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T16:48:15Z
dc.date.available2018-11-26T16:48:15Z
dc.date.issued2016-01-01
dc.description.abstractThis study evaluated the species level taxonomy and phylogenetic relationships among species of the section Setacea of the genus Batrachospermum. Molecular data (sequences of the plastid-encoded RuBisCO large subunit gene, rbcL; and the barcode region of the mitochondrial gene that encodes the cytochrome c oxidase subunit 1, cox1) were generated and morphological characters described for 15 populations from Brazil, Japan and Spain. The analyses of rbcL sequences revealed that section Setacea forms a well-supported clade, which was positioned close but clearly separated from some species of Batrachospermum usually called group 'Australasica'. Three well-supported clades were formed within the section: Batrachospermum sp. from Brazil; Batrachospermum atrum from Australasia, Europe and Asia and Batrachospermum puiggarianum from South America. The analyses of cox1 sequences revealed two well-supported groups: a large group with the sequences of B. puiggarianum from Brazil and a small group with one sequence of B. atrum from Spain and two sequences of Batrachospermum sp. from Brazil. The interspecific variation among these three species was high (38-71 bp, 3.0-5.5% for rbcL; 37-51 bp, 5.6-7.5% for cox1); whereas, sequence divergences within these three clades were much lower (0-33 bp, 0-2.6% for rbcL; 0-15 bp, 0-2.3% for cox1). The section is raised to genus (Setacea), and three species were recognized, including two previously described species (Setacea atra and Setacea puiggariana) that can be separated by either molecular and morphological data. A third species could not be distinguished from S. atra by morphological evidence but is clearly distinct based on divergence levels of both molecular markers used in this study (5.6-6.2% for rbcL; 3.0-3.4% for cox1) and is proposed as a new species (Setacea atro-brasiliensis) with the known geographic distribution restricted to Brazil.en
dc.description.affiliationSao Paulo State Univ, Dept Bot & Zool, BR-15054000 Sao Jose Do Rio Preto, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Bot & Zool, BR-15054000 Sao Jose Do Rio Preto, SP, Brazil
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: 306047/2013-6
dc.description.sponsorshipIdCNPq: 487566/2012-2
dc.description.sponsorshipIdFAPESP: 2012/12016-6
dc.description.sponsorshipIdFAPESP: 2013/03031-4
dc.description.sponsorshipIdFAPESP: 2015/05883-3
dc.format.extent337-346
dc.identifierhttp://dx.doi.org/10.2216/15-144.1
dc.identifier.citationPhycologia. Lawrence: Int Phycological Soc, v. 55, n. 4, p. 337-346, 2016.
dc.identifier.doi10.2216/15-144.1
dc.identifier.issn0031-8884
dc.identifier.urihttp://hdl.handle.net/11449/161687
dc.identifier.wosWOS:000378888700001
dc.language.isoeng
dc.publisherInt Phycological Soc
dc.relation.ispartofPhycologia
dc.relation.ispartofsjr0,678
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBatrachospermales
dc.subjectBatrachospermum
dc.subjectBrazil
dc.subjectcox1
dc.subjectrbcL
dc.subjectSetacea
dc.subjectSetacea atro-brasiliensis
dc.titleRevision of section Setacea of the genus Batrachospermum (Batrachospermales, Rhodophyta) with emphasis on specimens from Brazilen
dc.typeArtigo
dcterms.rightsHolderInt Phycological Soc

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