Communicating editor: G. Zuccarello.
Taxonomy of the southwestern Atlantic endemic kelp: Laminaria abyssalis and Laminaria brasiliensis (Phaeophyceae, Laminariales) are not different species
Article first published online: 16 JAN 2012
© 2012 Japanese Society of Phycology
Volume 60, Issue 1, pages 51–60, January 2012
How to Cite
Marins, B. V., Amado-Filho, G. M., Barreto, M. B. B. and Longo, L. L. (2012), Taxonomy of the southwestern Atlantic endemic kelp: Laminaria abyssalis and Laminaria brasiliensis (Phaeophyceae, Laminariales) are not different species. Phycological Research, 60: 51–60. doi: 10.1111/j.1440-1835.2011.00635.x
- Issue published online: 16 JAN 2012
- Article first published online: 16 JAN 2012
- Received 30 March 2011; accepted 19 October 2011.
- Laminaria abyssalis;
- tropical regions
Two endemic species of Laminaria, Laminaria abyssalis Joly & Oliveira Filho and L. brasiliensis Joly & Oliveira Filho, from the tropical southwestern Atlantic coast have been described. The aim of this work was to determine the conspecificity of these species based on morphological and molecular analyses (ribulose 1,5-bisphosphate carboxylase/oxgenase, large subunit (rbcL), internal transcribed spacer (ITS) and cytochrome c oxidase subunit I (coxI)). We found an overlap between the morphological characters that are considered taxonomically important for distinguishing these two species; these characters included a differing pattern of blade splitting. In the three molecular analyses, the Brazilian Laminaria specimens were grouped into one clade with maximum support. These data support the hypothesis that the individuals analyzed represent only one species, L. abyssalis. The molecular analysis also showed L. abyssalis to be sister group to L. digitata.