Bibliographic Detail
Cassano, V., Oliveira, M.C., Gil-Rodríguez, M.C., Sentíes, A., Díaz-Larrea, J. & Fujii, M.T., 2012
Reference:
Cassano, V., Oliveira, M.C., Gil-Rodríguez, M.C., Sentíes, A., Díaz-Larrea, J. & Fujii, M.T. (2012). Molecular support for the establishment of the new genus Laurenciella within the Laurencia complex (Ceramiales, Rhodophyta). Botanica Marina 55(4): 349-357.
Abstract:
Currently, five genera are assigned to red seaweeds of the
Laurencia complex worldwide: Chondrophycus, Laurencia s.s., Osmundea, Palisada and Yuzurua. The genera are segregated on the basis of morphological characters, especially the reproductive traits, and molecular sequences of the plastid-encoded gene rbcL. Four of the genera have been resolved as monophyletic, but not Laurencia s.s. In this study based on an rbcL gene phylogeny we show the presence of a sixth lineage within the Laurencia complex, viz., Laurencia marilzae
plus two unidentified species of Laurencia from Brazil. The
phylogenetic position of this group, combined with the high
genetic divergence from Laurencia s.s. (8.211%), strongly
support the establishment of a sixth genus for the complex,
proposed here as Laurenciella gen. nov. This new taxon differs
from Laurencia s.s. and from the other genera of the
complex by molecular sequence data, but is indistinguishable
from Laurencia s.s. by the usual morphological features.