TITLE:
Two New Species of the Genus Dictyota (Phaeophyceae: Dictyotales) from the Mexican Caribbean
AUTHORS:
Jorge G. Lozano-Orozco, Abel Sentíes, Olivier De Clerck, Kurt M. Dreckmann, Jhoana Díaz-Larrea
KEYWORDS:
Mexican Caribbean, Dictyota mayae sp. nov., Dictyota pedrochei sp. nov., Molecular Phylogeny, Taxonomy
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.6 No.15,
September
30,
2015
ABSTRACT: During a molecular characterization of the genus Dictyota J. V. Lamouroux (Phaeophyceae, Dictyotales)
along the Mexican coasts of the Gulf of Mexico and the Mexican Caribbean, using psbA
and cox1 genes, it was found that two particular collections did not match with the sequences published
for a total of 39 species of Dictyota. For each gene, both collections diverged in high-uncorrected
“p” distance values with respect to other related species. This high genetic divergence was
corroborated by morphological analysis. Hence, we proposed Dictyota mayae J. Lozano-Orozco &
Sentíes and Dictyota pedrochei J. Lozano-Orozco & Sentíes as new species.