The occurrence of Laurencia marilzae (Ceramiales, Rhodophyta) in Brazil based on morphological and molecular data
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Renato Rocha-Jorge
Abstract
Laurencia marilzae is recorded for the first time from the western Atlantic Ocean; it was found in Laje de Santos Marine State Park, São Paulo, southeastern Brazil. The specimens were collected in the rocky subtidal zone from 7 to 15 m depth. The most distinctive characteristic of this species is the presence of corps en cerise in all cells of the thallus, including cortex, medulla, and trichoblasts. The phylogenetic position of the species was inferred by analysis of the chloroplast-encoded rbcL gene sequences from 43 taxa, using two other rhodomelacean taxa and two members of the Ceramiaceae as outgroups. Within the Laurencia assemblage, L. marilzae from Brazil and from the Canary Islands (type locality) formed a distinctive lineage sister to all other Laurencia species analyzed. Male plants are described for the first time. This study expands the geographical distribution of L. marilzae to the western Atlantic Ocean.
©2010 by Walter de Gruyter Berlin New York
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Articles in the same Issue
- Research articles
- Aerial exposure and desiccation tolerances are correlated to species composition in “green tides” of the Salish Sea (northeastern Pacific)
- Species composition and distribution of macroalgae on Atol das Rocas, Brazil, SW Atlantic
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- Champia puertoricensis sp. nov. (Rhodophyta: Champiaceae) from Puerto Rico, Caribbean Sea
- The occurrence of Laurencia marilzae (Ceramiales, Rhodophyta) in Brazil based on morphological and molecular data
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- Habitat-related allelic variation revealed by an anonymous DNA locus in reef-dwelling Turbinaria ornata (Fucales, Phaeophyceae)
- Erratum
- Coexistence of Ulva rigida and Ulva laetevirens (Ulvales, Chlorophyta) in Venice Lagoon and other Italian transitional and marine environments; Bot. Mar. 53 (2010): 9–18
