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PHYLOGENETIC AND BIOGEOGRAPHIC AFFINITIES OF THE HALYMENIALES AND RHODYMENIALES (RHODOPHYTA) FROM THE GULF OF MEXICO
Author(s) -
Gavio B.,
Fredericq S.,
MendozaGonzalez C.,
MateoCid L.,
AguilarRosas L. E.,
AguilarRosas R.
Publication year - 2000
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1046/j.1529-8817.1999.00001-72.x
Subject(s) - biology , taxon , biogeography , intertidal zone , affinities , phylogenetic tree , ecology , shore , fishery , biochemistry , gene
Generic and species concepts within the red algal assemblages Halymeniales and Rhodymeniales are discussed for taxa inhabiting the western Gulf of Mexico. Two principal biogeographic assemblages occur: an off‐shore deep‐water group (including Coelarthrum cliftonii , Halymenia spp., Botryocladia spp., Gloiocladia ) representing remnants of a Tethyan distribution, and a near‐shore intertidal flora (comprising Rhodymenia , Grateloupia and Prionitis ) which instead reveals biogeographic affinities with the Carolinian Province. These two distinct marine floras will be contrasted phylogenetically based on DNA sequence analysis inferred from chloroplast‐encoded rbcL. The generic descriptions of Grateloupia and Prionitis are in need of taxonomic revision based on a survey of species from Caribbean and Pacific Mexico.