Phylogeny of the Cladophorophyceae (Chlorophyta) inferred from partial LSU rRNA gene sequences: is the recognition of a separate order Siphonocladales justified?
Leliaert, F.; Rousseau, F.; de Reviers, B.; Coppejans, E. (2003). Phylogeny of the Cladophorophyceae (Chlorophyta) inferred from partial LSU rRNA gene sequences: is the recognition of a separate order Siphonocladales justified? Eur. J. Phycol. 38(3): 233-246. dx.doi.org/10.1080/1364253031000136376 In: European Journal of Phycology. Cambridge University Press/Taylor & Francis: Cambridge. ISSN 0967-0262; e-ISSN 1469-4433, more |  |
| Keywords | Cladophorales [WoRMS]; Cladophorophyceae; Siphonocladales [WoRMS]
Marine/Coastal | | Author keywords | Cladophorophyceae; Cladophorales; LSU rRNA; molecular phylogeny; Siphonocladales |
| Authors | | Top | - Leliaert, F., more
- Rousseau, F.
- de Reviers, B.
- Coppejans, E., more
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| Abstract | Phylogenetic relationships within the green algal class Cladophorophyceae were investigated. For 37 species, representing 18 genera, the sequences of the 5’-end of the large subunit rRNA were aligned and analysed. Ulva fasciata and Acrosiphonia spinescens (Ulvophyceae) were used as outgroup taxa. The final alignment consisted of 644 positions containing 208 parsimony-informative sites. The analysis showed three lineages within the Cladophorophyceae: Cladophora horii diverged first, followed by two main lineages. The first lineage includes some Cladophora species and genera with a reduced thallus architecture. The second lineage comprises siphonocladalean taxa (excluding part of Cladophoropsis and including some Cladophora species). From this perspective the Siphonocladales forms a monophyletic group, the Cladophorales remaining paraphyletic. |
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