Phylogenetic relationships of corallinaceae (Corallinales,Rhodophyta): taxonomic implications for reef‐building corallines |
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| Authors: | Anja Rösler Francisco Perfectti Viviana Peña Juan Carlos Braga |
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| Affiliation: | 1. Departamento de Estratigrafía y Paleontología, Universidad de Granada, Granada, Spain;2. Departamento de Genética, Universidad de Granada, Granada, Spain;3. Grupo de investigación BIOCOST, Facultade de Ciencias, Universidade da Coru?a, A Coru?a, Spain;4. Phycology Research Group, Ghent University, Ghent, Belgium;5. Equipe Exploration, Espèces et Evolution, Institut de Systématique, Evolution, Biodiversité, UMR 7205 ISYEB CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle (MNHN), Sorbonne Universités, Paris, France |
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| Abstract: | A new, more complete, five‐marker (SSU, LSU, psbA, COI, 23S) molecular phylogeny of the family Corallinaceae, order Corallinales, shows a paraphyletic grouping of seven well‐supported monophyletic clades. The taxonomic implications included the amendment of two subfamilies, Neogoniolithoideae and Metagoniolithoideae, and the rejection of Porolithoideae as an independent subfamily. Metagoniolithoideae contained Harveylithon gen. nov., with H. rupestre comb. nov. as the generitype, and H. canariense stat. nov., H. munitum comb. nov., and H. samoënse comb. nov. Spongites and Pneophyllum belonged to separate clades. The subfamily Neogoniolithoideae included the generitype of Spongites, S. fruticulosus, for which an epitype was designated. Pneophyllum requires reassesment. The generitype of Hydrolithon, H. reinboldii, was a younger heterotypic synonym of H. boergesenii. The evolutionary novelty of the subfamilies Hydrolithoideae, Metagoniolithoideae, and Lithophylloideae was the development of tetra/bisporangial conceptacle roofs by filaments surrounding and interspersed among the sporangial initials. |
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| Keywords: | coral reef Corallinales coralline algae Hydrolithoideae Mastophoroideae Metagoniolithoideae molecular phylogeny Neogoniolithoideae |
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