New insights into the biodiversity and generic relationships of foliose Bangiales (Rhodophyta) in Iceland and the Faroe Islands |
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Authors: | Agnes Mols-Mortensen Christopher D. Neefus Ruth Nielsen Karl Gunnarsson Svanhildur Egilsdóttir Poul MØller Pedersen |
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Affiliation: | 1. Department of Biological Sciences , G32 Spaulding Life Science Center, University of New Hampshire (UNH) , Durham , NH 03824 , USA;2. The Natural History Museum of Denmark , Botanical Museum , Gothersgade 130 , DK-1123 Copenhagen K , Denmark;3. Marine Research Institute , P.O. Box 1390, Skulagata 4 , 121 Reykjavík , Iceland;4. Institute of Biology, Phycology Section , ?ster Farimagsgade 2D , DK-1353 Copenhagen K , Denmark |
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Abstract: | Foliose species of the Bangiales (Porphyra sensu lato) have a long history of study in the N Atlantic, but there are still regions, especially in the northern parts of the N Atlantic that need more attention. A molecular study using rbcL and cox1 sequences was undertaken to assess the diversity of foliose Bangiales species in Iceland and the Faroe Islands. Herbarium collections from the intertidal and subtidal of Iceland (summer and winter) and the Faroe Islands (all seasons) revealed a total of 13 species (11 common to both areas), which were referred to four of the genera recognized in a recent two-gene global phylogeny. Boreophyllum birdiae, Porphyra dioica, P. linearis, P. purpurea, P. umbilicalis, Pyropia ‘leucosticta’ A, Pyropia njordii Mols-Mortensen, J. Brodie & Neefus, sp. nov., Wildemania amplissima and W. miniata were common to both areas, while Pyropia thulaea and Wildemania abyssicola (Kjellman) A. Mols-Mortensen & J. Brodie, comb. nov. (=Porphyra abyssicola Kjellman) were reported from Iceland but not from the Faroe Islands; Porphyra sp. FO and Pyropia elongata were reported from the Faroe Islands but not from Iceland. Boreophyllum birdiae is reported for the first time for Iceland and Porphyra sp. FO is reported for the first time for the Faroe Islands. Pyropia njordii is described from the Faroe Islands and is also recorded for Iceland, Greenland, New England, USA and Nova Scotia, Canada. A total of 25 foliose Bangiales species are now reported from the N Atlantic and these results demonstrate the importance of investigating as many areas as possible to reach a more complete understanding of species diversity and distribution. |
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Keywords: | Bangiales Boreophyllum cox1 Faroe Islands Iceland new taxa North Atlantic Porphyra sensu lato Pyropia rbcL Rhodophyta species diversity taxonomy Wildemania |
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