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| one publication added to basket [362187] |
Morphological and molecular assessment of Lithophyllum okamurae with the description of L. neo-okamurae sp. nov. (Corallinales, Rhodophyta)
Kato, A.; Basso, D.; Caragnano, A.; Rodondi, G.; Le Gall, L.; Peña, V.; Hall-Spencer, J.M.; Baba, M. (2022). Morphological and molecular assessment of Lithophyllum okamurae with the description of L. neo-okamurae sp. nov. (Corallinales, Rhodophyta). Phycologia 61(2): 117-131. https://dx.doi.org/10.1080/00318884.2021.2005330
In: Phycologia. International Phycological Society: Odense. ISSN 0031-8884; e-ISSN 2330-2968, meer
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| Trefwoorden |
Lithophyllum margaritae (Hariot) Heydrich, 1901 [WoRMS]; Lithophyllum okamurae Foslie, 1900 [WoRMS]
Marien/Kust |
| Author keywords |
Lithophyllum margaritae; LSU rDNA; Morpho-anatomy; Non-geniculate coralline algae; Northwestern Pacific Ocean; psbA; rbcL; Rhodolith |
| Auteurs | | Top |
- Kato, A.
- Basso, D.
- Caragnano, A.
- Rodondi, G.
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- Le Gall, L.
- Peña, V., meer
- Hall-Spencer, J.M.
- Baba, M.
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| Abstract |
Lithophyllum okamurae has been widely reported in the Pacific Ocean with identification based on morpho-anatomical observations. Two infraspecific taxa, L. okamurae f. okamurae and f. angulare, described from Japan, have been recorded in the temperate region of Japan. We assessed branched Lithophyllum samples morphologically referable to L. okamurae using morpho-anatomical data and DNA sequences (psbA, rbcL and partial LSU rDNA) obtained from herbarium specimens, including type material, as well as recently field-collected material in Japan. The molecular analyses showed that these ‘L. okamurae’ samples contained two species: L. okamurae and a cryptic new species which we describe as L. neo-okamurae sp. nov. Because the holotype of L. okamurae f. angulare was conspecific with original material cited in the protologue of L. okamurae, it is a heterotypic synonym of L. okamurae f. okamurae. Lithophyllum okamurae and L. neo-okamurae were morphologically similar in having warty, lumpy and fruticose thalli and in often forming rhodoliths. Lithophyllum okamurae can be morpho-anatomically distinguished from L. neo-okamurae by the thallus with tapering or plate-like protuberances (knobby protuberances in the latter) and by having smaller tetrasporangial conceptacle chambers (167–314 µm; 248–380 µm in L. neo-okamurae). Our LSU rDNA sequence data from L. okamurae f. angulare (=L. okamurae f. okamurae) was identical to that of the type of L. margaritae, which has nomenclatural priority over L. okamurae. However, considering that psbA and rbcL sequences of L. margaritae type material could not be generated in the present study, we refrain, for the moment, from proposing the taxonomic synonymy between these two taxa until the status of L. margaritae and its synonyms from the type locality (Gulf of California) are clarified. |
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