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The coralline genera Sporolithon and Heydrichia (Sporolithales, Rhodophyta) clarified by sequencing type material of their generitypes and other species

Richards, Joseph L. ; Sauvage, Thomas ; Schmidt, William E. ; Fredericq, Suzanne ; Hughey, Jeffery R. ; Gabrielson, Paul W.

Journal of Phycology, October 2017, Vol.53(5), pp.1044-1059 [Periódico revisado por pares]

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  • Título:
    The coralline genera Sporolithon and Heydrichia (Sporolithales, Rhodophyta) clarified by sequencing type material of their generitypes and other species
  • Autor: Richards, Joseph L. ; Sauvage, Thomas ; Schmidt, William E. ; Fredericq, Suzanne ; Hughey, Jeffery R. ; Gabrielson, Paul W.
  • Assuntos: Coi ; Egypt ; Gulf Of Suez ; Lsu ; New Species ; Phylogenetics ; Psb A ; Rbc L ; Red Sea ; Upa
  • É parte de: Journal of Phycology, October 2017, Vol.53(5), pp.1044-1059
  • Descrição: Interspecific systematics in the red algal order Sporolithales remains problematic. To re‐evaluate its species, analyses were performed on historical type material and recently collected specimens assigned to the two genera and . Partial L sequences from the lectotype specimens of (the generitype species) and , both from El Tor, Egypt, are exact matches to field‐collected topotype specimens. and also have the same type locality; material of the former appears to no longer exist, and we were unable to amplify from the latter. A new species, , is described from the same type locality. We have not found any morpho‐anatomical characters that distinguish these three species. No sequenced specimens reported as from other parts of the world represent this species, and likely reports of and based on morpho‐anatomy are incorrect. A partial L sequence from the holotype of indicates it is not a synonym of , and data from the holotype of confirm its specific recognition. sequences from topotype material of , the generitype species, and isotype material of confirm that these are distinct species; the taxon reported to be from New Zealand is likely an undescribed species. Type specimens of all other and species need to be sequenced to confirm that they are distinct species; morpho‐anatomical studies have proved inadequate for this task.

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