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North meets south – Taxonomic and biogeographic implications of a phylogenetic assessment of Sargassum subgenera Arthrophycus and Bactrophycus (Fucales, Phaeophyceae)
Journal article   Peer reviewed

North meets south – Taxonomic and biogeographic implications of a phylogenetic assessment of Sargassum subgenera Arthrophycus and Bactrophycus (Fucales, Phaeophyceae)

R.R.M. Dixon, L. Mattio, J.M. Huisman, C.E. Payri, J.J. Bolton and C.F.D. Gurgel
Phycologia, Vol.53(1), pp.15-22
2014
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Abstract

Arthrophycus Bactrophycus Biogeography cox3 Halochloa ITS-2 Molecular phylogenetics rbcL-S spacer Taxonomic revision
The Sargassum subgenera Bactrophycus and Arthrophycus were considered to be geographically restricted to the northern and southern hemispheres, respectively. Phylogenetic analyses of 19 Sargassum subgenus Bactrophycus species and eight Sargassum subgenus Arthrophycus species, based on a concatenated dataset of the loci ITS-2, cox3 and the rbcL-S spacer, showed that they formed a single clade, with Arthrophycus species nested within Bactrophycus section Halochloa. We merged the two subgenera as subgenus Bactrophycus and transferred “Arthrophycus” species to Sargassum section Halochloa. The genus now includes only the two subgenera, Sargassum and Bactrophycus, and both were found at temperate and subtropical latitudes; only subgenus Sargassum occurred at low latitudes near the equator, whereas subgenus Bactrophycus had an antitropical, disjunct distribution.

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Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.2 Marine Biology
3.2.509 Marine Algae
Web Of Science research areas
Marine & Freshwater Biology
Plant Sciences
ESI research areas
Plant & Animal Science
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