‘Lithistid’ Demospongiae

Pisera, Andrzej; Lévi, Claude

doi:10.1007/978-1-4615-0747-5_33

Cited by 26 publications

(33 citation statements)

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“…(2004) and the three other listhistid species analysed ( Theonella sp., Discodermia sp., and Corallistes sp.). These results provide additional molecular evidence for the polyphyly of the lithistids (reviewed in Pisera & Lévi 2002a). Haliclona mediterranea , included in the G3 group of Borchiellini et al .…”

Section: Resultsmentioning

confidence: 68%

Phylogenetic relationships of freshwater sponges (Porifera, Spongillina) inferred from analyses of 18S rDNA, COI mtDNA, and ITS2 rDNA sequences

Addis¹,

P²

2005

Zoologica Scripta

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Phylogenetic relationships of freshwater sponges (Porifera, Spongillina) inferred from analyses of 18S rDNA, COI mtDNA, and ITS2 rDNA sequences. -Zoologica Scripta , 34 , 549-557. The phylogenetic relationships of nine species of freshwater sponges, representing the families Spongillidae, Lubomirskiidae, and Metaniidae, were inferred from analyses of 18S rDNA, cytochrome oxidase subunit I (COI) mtDNA, and internal transcribed spacer 2 (ITS2) rDNA sequences. These species form a strongly supported monophyletic group within the Demospongiae, with the lithistid Vetulina stalactites as the sister taxon. Within the freshwater sponge clade, the basal taxon is not resolved. Depending upon the method of analysis and sequence, the metaniid species, Corvomeyenia sp., or the spongillid species, Trochospongilla pennsylvanica , emerges as the basal species. Among the remaining freshwater sponge species, the spongillids, Spongilla lacustris and Eunapius fragilis , form a sister group to a clade comprised of the spongillid species, Clypeatula cooperensis , Ephydatia fluviatilis , and Ephydatia muelleri , and the lubomirskiid species, Baikalospongia bacillifera and Lubomisrkia baicalensis . C. cooperensis is the sister taxon of E. fluvialitis , and E. muelleri is the sister taxon of ( B. bacillifera + L. baicalensis ). The family Spongillidae and the genus Ephydatia are thus paraphyletic with respect to the lubomirskiid species; Ephydatia is also paraphyletic to C. cooperensis . We suggest that C. cooperensis be transferred to the genus Ephydatia and that the family Lubomirskiidae be subsumed into the Spongillidae.

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Section: Resultsmentioning

confidence: 68%

Phylogenetic relationships of freshwater sponges (Porifera, Spongillina) inferred from analyses of 18S rDNA, COI mtDNA, and ITS2 rDNA sequences

Addis¹,

P²

2005

Zoologica Scripta

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“…3). This would not come as a surprise since desmas have appeared independently in other sponge orders as well [96]. It should be emphasized that, in our opinion, 8 out of the 13 extant lithistid families are of Astrophorida affinities (Corallistidae, Isoraphiniidae, Macandrewiidae, Neopeltidae, Phymaraphiniidae, Phymatellidae, Pleromidae, Theonellidae) representing ca 128 species [6].…”

Section: Discussionmentioning

confidence: 99%

Molecular Phylogeny of the Astrophorida (Porifera, Demospongiaep) Reveals an Unexpected High Level of Spicule Homoplasy

et al. 2011

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BackgroundThe Astrophorida (Porifera, Demospongiae p) is geographically and bathymetrically widely distributed. Systema Porifera currently includes five families in this order: Ancorinidae, Calthropellidae, Geodiidae, Pachastrellidae and Thrombidae. To date, molecular phylogenetic studies including Astrophorida species are scarce and offer limited sampling. Phylogenetic relationships within this order are therefore for the most part unknown and hypotheses based on morphology largely untested. Astrophorida taxa have very diverse spicule sets that make them a model of choice to investigate spicule evolution.Methodology/Principal FindingsWith a sampling of 153 specimens (9 families, 29 genera, 89 species) covering the deep- and shallow-waters worldwide, this work presents the first comprehensive molecular phylogeny of the Astrophorida, using a cytochrome c oxidase subunit I (COI) gene partial sequence and the 5′ end terminal part of the 28S rDNA gene (C1-D2 domains). The resulting tree suggested that i) the Astrophorida included some lithistid families and some Alectonidae species, ii) the sub-orders Euastrophorida and Streptosclerophorida were both polyphyletic, iii) the Geodiidae, the Ancorinidae and the Pachastrellidae were not monophyletic, iv) the Calthropellidae was part of the Geodiidae clade (Calthropella at least), and finally that v) many genera were polyphyletic (Ecionemia, Erylus, Poecillastra, Penares, Rhabdastrella, Stelletta and Vulcanella).ConclusionThe Astrophorida is a larger order than previously considered, comprising ca. 820 species. Based on these results, we propose new classifications for the Astrophorida using both the classical rank-based nomenclature (i.e., Linnaean classification) and the phylogenetic nomenclature following the PhyloCode, independent of taxonomic rank. A key to the Astrophorida families, sub-families and genera incertae sedis is also included. Incongruences between our molecular tree and the current classification can be explained by the banality of convergent evolution and secondary loss in spicule evolution. These processes have taken place many times, in all the major clades, for megascleres and microscleres.

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“…Dead skeletons covered by a dark coating similar to that of the rock walls are still abundant some distance beyond the live population in even shallower water, where they are more exposed to freshwater.They testify to long term changes of hydrology, probably alteration of the freshwater input. SYSTEMATICS 'Lithistids' (following Pisera & Le¤ vi, 2002a) Family SIPHONIDIIDAE Lendenfeld, 1903 Gastrophanella …”

Section: Habitatmentioning

confidence: 99%

Two new lithistids (Porifera: Demospongiae) from a shallow eastern Mediterranean cave (Lebanon)

et al. 2004

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Two new species of lithistid sponges, Gastrophanella phoeniciensis sp. nov. (Siphonidiidae) and Microscleroderma lamina sp. nov. (Scleritodermidae) are described from a submarine cave, depth 2^3 m, in Lebanon. They are the ¢rst Mediterranean records of two genera with a mainly tropical distribution, Gastrophanella being known from the western Atlantic (Caribbean, Brazil), central eastern Paci¢c (Mexico) and South Africa, and Microscleroderma from the Indo-Paci¢c and the eastern Atlantic (Senegal). They are interpreted as remnants of a warmer period in the Mediterranean that survived the subsequent cooling only in the warmer eastern basin. Gastrophanella phoeniciensis sp. nov. is closely related to G. cavernicola from Brazil and Belize, from which it di¡ers essentially in its shape. Microscleroderma lamina sp. nov. is characterized by a lamellar shape, short oxeas and having hair-like oxeas arranged around the aquiferous openings.

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‘Lithistid’ Demospongiae

Cited by 26 publications

References 0 publications

Phylogenetic relationships of freshwater sponges (Porifera, Spongillina) inferred from analyses of 18S rDNA, COI mtDNA, and ITS2 rDNA sequences

Phylogenetic relationships of freshwater sponges (Porifera, Spongillina) inferred from analyses of 18S rDNA, COI mtDNA, and ITS2 rDNA sequences

Molecular Phylogeny of the Astrophorida (Porifera, Demospongiaep) Reveals an Unexpected High Level of Spicule Homoplasy

Two new lithistids (Porifera: Demospongiae) from a shallow eastern Mediterranean cave (Lebanon)

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