Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Morphological and molecular evidence demonstrates the amphi-Atlantic distribution of Laurencia catarinensis (Ceramiales, Rhodophyta)

Texto completo
Autor(es):
Machin-Sanchez, Maria [1] ; Cassano, Valeria [2] ; Diaz-Larrea, Jhoana [3] ; Senties, Abel [3] ; Fujii, Mutue T. [4] ; Candelaria Gil-Rodriguez, Maria [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ La Laguna, Dept Biol Vegetal Bot, San Cristobal la Laguna 38071, Santa Cruz De T - Spain
[2] Univ Sao Paulo, Inst Biociencias, Dept Bot, BR-05508900 Sao Paulo - Brazil
[3] Univ Autonoma Metropolitana Iztapalapa, Dept Hidrobiol, Mexico City 09340, DF - Mexico
[4] Inst Bot, BR-04301012 Sao Paulo - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: Botanica Marina; v. 55, n. 3, p. 241-252, JUN 2012.
Citações Web of Science: 10
Resumo

We performed morphological and molecular studies of Laurencia catarinensis from the Canary Islands. This species has an entangled habit, cushion-like tuft formation, cortical cell walls, slightly to markedly projecting near the apex, and lacking lenticular thickenings in medullary cells. We inferred its phylogenetic position by analyzing the chloroplast-encoded rbcL gene sequences from 41 samples. The results demonstrate that specimens of L. catarinensis from the Canary Islands, where it is referred to as L. intricata, and those from Brazil (including specimens from the type locality in Santa Catarina) form a monophyletic clade with low genetic divergence (0-0.9%). In contrast, specimens of L. intricata from the type locality in Cuba, Mexico, and the USA were clearly distinct from L. catarinensis collected in Brazil and the Canary Islands, as shown by high genetic divergence values (4.9-5.7%). The type material of L. catarinensis from Brazil allowed us to identify all samples from the Canarian Archipelago as L. catarinensis. These findings expand the known geographical distribution of L. catarinensis to the eastern Atlantic Ocean and demonstrate an amphi-Atlantic distribution of the species. (AU)

Processo FAPESP: 10/52244-2 - Diversidades e relações filogenéticas de algas marinhas bentônicas: o complexo Laurencia (Rhodophyta) no Atlântico Tropical e Subtropical
Beneficiário:Valéria Cassano
Linha de fomento: Auxílio à Pesquisa - Regular