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Kuwaitiella rubra gen. et sp. nov. (Bangiales, Rhodophyta), a new filamentous genus and species from the north-western Indian Ocean
Hasan, A.H.; Van der Aa, P.; Küpper, F.C.; Al-Bader, D.; Peters, A.F. (2022). Kuwaitiella rubra gen. et sp. nov. (Bangiales, Rhodophyta), a new filamentous genus and species from the north-western Indian Ocean. Phycol. Res. 70(4): 192-202. https://dx.doi.org/10.1111/pre.12498
In: Phycological Research. Blackwell: Carlton, Vic.. ISSN 1322-0829; e-ISSN 1440-1835
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| Trefwoorden |
Taxa > Species > New taxa > New species
Bangia Lyngbye, 1819 [WoRMS]; Kuwaitiella rubra A.H.Hansen, P.Van der Aa, F.C.Küpper, D.Al-Bader & A.F.Peters, 2022 [WoRMS]; Rhodophyta [WoRMS]
Marien/Kust |
| Author keywords |
Bangia; small subunit ribosomal DNA (nrSSU); Rhodophyta; Kuwait; plastidribulose-1,5-bisphosphate carboxylase/oxygenase large subunit (rbcL) |
| Auteurs | | Top |
- Hasan, A.H.
- Van der Aa, P.
- Küpper, F.C.
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- Al-Bader, D.
- Peters, A.F.
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| Abstract |
A new filamentous marine red alga, Kuwaitiella rubra gen. et sp. nov. (Bangiales, Rhodophyta), is described from Kuwait in the north-western Arabian Gulf (also referred to as the Persian Gulf). It was found on a submerged fishing line. The intensively red upright thallus of up to 1 cm in length consists of cells containing a single stellate plastid. The thallus is initially uniseriate but becomes biseriate in its distal part upon transformation into globular reproductive cells, possibly archaeospores. The biseriate fertile part is the only morphological difference from other filamentous species of the Bangiales, in which this region is parenchymatous. In culture, bipolar asymmetric germination of the spores of Kuwaitiella led to a new generation of identical erect thalli, fixed to the substratum by colourless rhizoids. According to phylogenetic analyses of partial small subunit nuclear ribosomal DNA (18S) and of the plastid-encoded ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit (rbcL), the new species forms an additional lineage of the Bangiales, genetic similarity with other taxa being limited (maximum 91% in SSU and 90% in rbcL). It was no clear member of any known lineage of the Bangiales but was weakly associated with the filamentous species Minerva and Dione from New Zealand. In a SSU phylogeny, it formed a basal branch in the Bangiales and clustered with M. aenigmata and D. arcuata as sister clade to all other species of the order. In a rbcL phylogeny, it was part of a large polytomy of lineages, its closest relative being D. arcuata. Kuwaitiella forms the 8th lineage of filamentous Bangiales detected so far. |
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