Australian Laurencia majuscula (Rhodophyta, Rhodomelaceae) and the Brazilian Laurencia dendroidea are conspecific

Author(s)

Metti, Yola ^[1] ; Millar, Alan J. K. ^[1] ; Cassano, Valeria ^[2] ; Fujii, Mutue T. ^[3]

Affiliation

^[1] Royal Bot Gardens, Natl Herbarium New South Wales, Sydney, NSW - Australia

^[2] Univ Sao Paulo, Dept Bot, Sao Paulo - Brazil

^[3] Inst Bot, Sao Paulo - Brazil

• Document type: Journal article
• Source: PHYCOLOGICAL RESEARCH; v. 61, n. 2, p. 98-104, APR 2013.
• Web of Science Citations: 7

Abstract

Morphological and molecular studies have been undertaken on two species of the red algal genus LaurenciaJ.V.Lamouroux: Laurencia majuscula (Harvey) A.H.S. Lucas and Laurencia dendroideaJ.Agardh, both from their type localities. The phylogenetic position of these species was inferred by analysis of the chloroplast-encoded rbcL gene sequences from 24 taxa. In all phylogenetic analyses, the Australian Laurencia majuscula and the Brazilian L.dendroidea formed a well-supported monophyletic clade within the Laurencia sensu stricto. This clade was divided into two subclades corresponding to each geographical region; however, the genetic divergence between Australian L.majuscula and Brazilian L.dendroidea was only 01.35%. Examination of the type specimens and sequences of freshly collected samples of both Laurencia majuscula and L.dendroidea show the two to be conspecific despite their disjunct type localities. (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 Opportunities: 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 Opportunities: BIOTA-FAPESP Program - Thematic Grants