Project 3707: Małgorzata Kolicka, Miroslawa Dabert, Ziemowit Olszanowski, Jacek Dabert. 2020. Sweet or salty? The origin of freshwater gastrotrichs (Gastrotricha, Chaetonotida) revealed by molecular phylogenetic analysis. Cladistics. (In Press)
This project has 16 documents.

Please find here additional documents associated with this project. Occasionally MorphoBank receives matrices that are not formatted to parse to the database, these can also be found here, along with others and are presented 'as is' from the scientist.

16 Documents

Figure 1
Schematic presentation of a hypothetical gastrotrich with marked characters traced in this study. A – Dorsal view. B – Internal view. C – Ventral view. Abbreviations: ACCt – anterior pair of cephalic ciliary tuft; AtS – segmentation of adhesive tube; Cc – cephalic cilia; Ci – cirri; Cm – ciliary muzzle; CO – caudal organ; CR – cuticular reinforcements in anterior part of pharynx; CTe – cuticular teeths; DeL – spine lateral denticle; dSB – dorsal sensory bristle; Eg – egg; FO – frontal; FI – Furcal indentation; Ih – inner hairs; In – intestine; InDM – anterior part of intestine different morphologically than remaining part; LC – locomotory cilia; LCLb – locomotory cilia longitudinal bands; LCTb – locomotory cilia transversal bands; Mt – mouth ring; MtR – mouth ring reinforcements; Nc – neck constriction; PCCt – posterior pair of cephalic ciliary tuft; Ph – pharynx; PhIJ – pharyngeal–intestinal junction; PhP – pharyngeal pores; Sf – Flat scales; SH – hair–like spines; SI – Intrafurcal spines; sj – juxtaposed scales; SL – spines with lamellae; SLB – row of long spines with bifurcated ends; SLP – long parafurcal spines; SM – motile spines; so – overlapping scales; SOk – One–lobed, keeled scales; Sp – spermatozoa; Spl – plate–like scales; SSp – simple spines; STen – sensory tentacles; STk – three–lobed, keeled scales; SVJF – ventral interciliary field scales; TbA – anterior adhesive tubes; TbL – laterall adhesive tubes; TbS – secendary adhesive tubes; Te – testes; VDI – vasa deferentia prominent inflection; VIF – ventral interciliary field; VOL – one longitudinal row of plate–like scales; X – X–organ.
Figure 2
Phylogenetic relationships of Chaetonotida inferred from MP (A) and likelihood (B) analyses. The clade CDN comprising Chaetonotidae, Neogosseidae, and Dasydytidae is condensed. Values near branches show Bayesian posterior probability (PP)/ bootstrap support (BS). MP tree statistics: L=27982, CI=0.267, RI=0.599, RC=0.160, HI=0.733. Abbreviations: M – Muselliferidae, X – Xenotrichulidae, "•" maximum support.
Figure 3
Phylogenetic relationships of the clade CDN inferred from MP analyses. Values near branches show bootstrap support (BS). Tree statistics as in Fig. 2. Abbreviations for support values: "-" <50, "•" maximum support. Green: freshwater species; blue: marine species.
Figure 4
Phylogenetic relationships of the clade “Chaetonotidae” inferred from likelihood analyses (BI and ML). Values near branches show Bayesian posterior probability (PP)/bootstrap support (BS). Abbreviations for support values: "-" <0.5/<50, "◦" >0.95/>95, "•" maximum support. Green: freshwater species; blue: marine species.
Figure 5
Phylogenetic conflict in the BI trees reconstructed by Consensus Network analysis. Alternative hypotheses for early branching lineages of “Chaetonotidae” are depicted in red for the Bifidochaetus or (Bifidochaetus, (Lepidochaetus, Cephalionotus)) clades and in blue for the clade grouping marine Aspidiophorus spp. or the (Aspidophorus, C. (Schizochaetonotus)) clade. The numbers near splits are confidence values for alternate hypotheses.
Figure 6
“Chaetonotidae” synapomorphies marked on the simplified “Chaetonotidae” phylogenetic tree inferred from likelihood analyses (Figs. 2B, 4).
Figure S1
MP tree after excluding nonhomoplasious characters (CI=1) revealed by successive reweighting procedure by rescaled consistency indices (RC). Tree statistics: L=26037, CI=0.214, RI=0.589, RC=0.126, HI=0.786. Abbreviations as in Fig. 3.
Figure S2
Phylogenetic relationships according to MP analysis after excluding the long-branching marine Chaetonotus (Schizochaetonotus) and Aspidophorus clades from CDN data matrix. Tree statistics: L=25966, CI=0.280, RI=0.608, RC=0.170, HI=0.720. Abbreviations as in Fig. 3.
Figure S3
Phylogenetic relationships according to likelihood analyses (ML and BI) after excluding the long-branching marine Chaetonotus (Schizochaetonotus) and Aspidophorus clades from CDN data matrix. Abbreviations as in Fig. 4.
Figure S4
Consensus Network analysis of BI trees after excluding the long-branching marine Chaetonotus (Schizochaetonotus) and Aspidophorus clades from “Chaetonotidae” data matrix. The numbers near splits are confidence values for alternate hypotheses.
Figure S5
Character tracing of ecological and morphological traits (see Table S1) in Chaetonotida and Macrodasyida. Changes were traced onto the phylogenetic tree inferred from likelihood analyses (Figs. 2B, 4) using MP model for reconstruction of ancestral states in Mesquite.
Main text
Sweet or salty? The origin of freshwater gastrotrichs (Gastrotricha, Chaetonotida) revealed by molecular phylogenetic analysis
Molecular matrice_aligment
Morphological matrice
Table 1
List of the taxa used in this study. NA – data not available. The sequences generated in this study are in italics.
Table S1
Species-character matrix.