Journal article
Widely distributed red algae often represent hidden introductions, complexes of cryptic species or species with strong phylogeographic structure
P Díaz-Tapia, CA Maggs, EC Macaya, H Verbruggen
Journal of Phycology | WILEY | Published : 2018
DOI: 10.1111/jpy.12778
Abstract
Despite studies suggesting that most seaweeds are poor dispersers, many red algal species are reported to have circumglobal distributions. Such distributions have mostly been based on morphological identifications, but molecular data have revealed a range of issues with morphologically defined species boundaries. Consequently, the real distribution of such reportedly circumglobal species must be questioned. In this study, we analyzed molecular data sets (rbcL gene) of nine species in the Rhodomelaceae for which samples were available from widely spaced geographical locations. Three overall patterns were identified: (i) species showing strong phylogeographic structure (i.e., phylogenetic simi..
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Awarded by Holsworth Wildlife Research Endowment
Funding Acknowledgements
We thank Francis Bunker, Fabio Rindi, Iara Chapuis, Jan Rueness, and Max Hommersand for providing samples and Joana Costa, as well as other researchers included in Table S1, for assistance in the field. We thank Marisa Pasella for carrying out part of the molecular work. PDT acknowledges support by the postdoctoral program "Axudas de apoio a etapa de formacion posdoutoral," as well as the funding program "Axudas para a consolidacion e estruturacion de unidades de investigacion competitivas do SUG," grant GPC2015/025 (Xunta de Galicia). Field work in the Mediterranean Sea was funded by a grant awarded to PDT by the British Phycological Society. Part of the research presented here was funded through the Australian Biological Resources Study (ABRS), including participation in a Bush Blitz expedition, a Bush Blitz Strategic Taxonomy Grant (TTC216-03) and a National Taxonomy Research Grant (RFL213-08). Sampling in Western Australia, Queensland and Tasmania was made possible through funding from the Holsworth Wildlife Research Endowment. ECM acknowledges support by the Chilean Millennium Initiative (NC120030) grant, ESMOI (Millenium Nucleous "Ecology and Sustainable Management of Oceanic Islands").