Diversity of Chondracanthus (Gigartinaceae, Rhodophyta) on the Brazilian coast based on molecular and morphological evidences

Autor(es)

Rocha-Jorge, Renato ^[1] ; Nauer, Fabio ^[2] ; Silva, Ingrid B. ^[1] ; Fujii, Mutue T. ^[1] ; Necchi, Jr., Orlando ^[3] ; Le Gall, Line ^[4] ; Oliveira, Mariana C. ^[2]

Afiliação do(s) autor(es)

^[1] Bot Inst, Av Miguel Estefano 3687, BR-04301012 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Inst Biosci, Dept Bot, Rua Matao 277, BR-05508090 Sao Paulo - Brazil

^[3] Sao Paulo State Univ, Zool & Bot Dept, R Cristovao Colombo 2265, BR-15054000 S Jose Rio Preto, SP - Brazil

^[4] Sorbonne Univ, CNRS, Museum Natl Hist Nat, Inst Systemat Evolut Biodiversite ISYEB, EPHE, 57 Rue Cuvier, CP 39, F-75005 Paris - France

• Tipo de documento: Artigo Científico
• Fonte: BRAZILIAN JOURNAL OF BOTANY; v. 41, n. 4, p. 889-900, DEC 2018.
• Citações Web of Science: 0

Resumo

Based on morphological studies, four species of Chondracanthus Kutzing were previously reported on the Brazilian coast: C. acicularis (Roth) Fredericq, C. elegans (Greville) Guiry, C. saundersii C.W.Schneider and C.E.Lane and C. teedei (Mertens ex Roth) Fredericq. In the present study, specimens of Chondracanthus were collected from intertidal and subtidal zones (up to 18m depth); morphological, molecular and phylogenetic analyses were performed using DNA barcoding (cox1) as a tool in a survey of Rhodophyta biodiversity in SAo Paulo state. Unlike what we expected, C. saundersii is widely distributed, and many specimens were misidentified as C. acicularis or C. teedei before this study, suggesting the necessity of an accurate revision in the previous identifications of the species of Chondracanthus in Brazil. Tetrasporangial and cystocarpic structures of C. saundersii are described for the first time. Our results confirm that the utilization of cox1 sequences as DNA barcode is an efficient tool to complement morphological identification for species of the genus Chondracanthus. (AU)

• Processo FAPESP: 07/51270-7 - Diversidade das microalgas vermelhas (Rhodophyta) do estado de São Paulo baseada em barcoding, morfologia e distribuição geográfica (RHODO-SP)
• Beneficiário: Mariana Cabral de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 16/50370-7 - Resgate histórico dos holótipos das macroalgas da costa brasileira e etiqueta molecular dos topótipos
• Beneficiário: Mutue Toyota Fujii
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/20559-4 - Diversidade de macroalgas nas unidades de conservação insulares do estado de São Paulo, Brasil
• Beneficiário: Renato Rocha Jorge
• Modalidade de apoio: Bolsas no Brasil - Doutorado