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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Redefining the taxonomic status of Laurencia dendroidea (Ceramiales, Rhodophyta) from Brazil and the Canary Islands

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Cassano, Valeria [1] ; Metti, Yola [2] ; Millar, Alan J. K. [2] ; Candelaria Gil-Rodriguez, Maria [3] ; Senties, Abel [4] ; Diaz-Larrea, Jhoana [4] ; Oliveira, Mariana C. [1] ; Fujii, Mutue T. [5]
Total Authors: 8
[1] Univ Sao Paulo, Dept Bot, BR-05508900 Sao Paulo - Brazil
[2] Royal Bot Gardens, Sydney, NSW 2000 - Australia
[3] Univ La Laguna, Dept Biol Vegetal Bot, Tenerife 38071, Islas Canarias - Spain
[4] Univ Autonoma Metropolitana Iztapalapa, Dept Hidrobiol, Mexico City 09340, DF - Mexico
[5] Inst Bot, BR-04301902 Sao Paulo - Brazil
Total Affiliations: 5
Document type: Journal article
Source: European Journal of Phycology; v. 47, n. 1, p. 67-81, 2012.
Web of Science Citations: 26

Morphological and molecular studies have been performed on Laurencia dendroidea derived from Brazil and the Canary Islands. This species possesses all of the characters that are typical of the genus Laurencia, including the production of the first pericentral cell underneath the basal cell of the trichoblast; the production of tetrasporangia from particular pericentral cells without the formation of additional fertile pericentral cells; spermatangial branches that are produced from one of two laterals on the suprabasal cell of the trichoblasts; and a procarp-bearing segment that possesses five pericentral cells. The phylogenetic position of L. dendroidea was inferred by analysing the chloroplast-encoded rbcL gene sequences of 51 taxa. Phylogenetic analyses revealed that the taxa previously identified and cited in Brazil as Laurencia filiformis, L. majuscula and L. obtusa and in the Canary Islands as L. majuscula all represent the same taxonomic entity and examination of type material allowed us to identify this entity as L. dendroidea, whose type locality is in Brazil. Laurencia obtusa from the Northern Atlantic is confirmed to represent a distinct species, which displays high genetic divergence with respect to western and eastern Atlantic samples. The phylogenetic analyses also supported the nomenclatural transfer of Chondrophycus furcatus (Cordeiro-Marino \& M. T. Fujii) M. T. Fujii \& Senties to Palisada furcata (Cordeiro-Marino \& M. T. Fujii) Cassano \& M. T. Fujii comb. nov. (AU)

FAPESP's process: 10/52244-2 - Diversity and phylogenetic relationships of marine benthic algae: the Laurencia complex (Rhodophyta) in the Atlantic coasts of tropical and subtropical regions
Grantee:Valéria Cassano
Support type: Regular Research Grants
FAPESP's process: 07/51270-7 - Diversity of red macroalgae (Rhodophyta) of São Paulo State, Brazil, based on barcoding, morphology and geographic distribution (RHODO-SP)
Grantee:Mariana Cabral de Oliveira
Support type: BIOTA-FAPESP Program - Thematic Grants