BioMed Research International / 2013 / Article / Tab 1

Research Article

The Continuing Debate on Deep Molluscan Phylogeny: Evidence for Serialia (Mollusca, Monoplacophora + Polyplacophora)

Table 1

Preanalyses comparing different taxon sampling and masking strategies; Mafft [30] and RNAsalsa [18] are alignment methods; Aliscore [17, 31] and Gblocks [35] are masking methods.

DatasetAlignment treatmentAlignment length (bp)Major changes in tree topology, compared to main topology (Figure 2, Supplementary Figure )

Total set (158 taxa) Mafft-cut and paste inconsistent blocks in 18S and 28S fragments-Aliscore10318Annelida s.l. sister to Mollusca; Aplacophora monophyletic (Caudofoveata sister to Solenogastres); Patellogastropoda clusters with Cephalopoda
Total set (158 taxa)Mafft-RNAsalsa-Aliscore7597Mollusca non-monophyletic; Caudofoveata, Solenogastres, Cephalopoda, and Scaphopoda cluster with Annelida s.l.; Neritimorpha basal sister to remaining Gastropoda; Patellogastropoda sister to partial Vetigastropoda (Lepetelloida + Vetigastropoda s.s.)
Total set (158 taxa)Mafft-RNAsalsa-Gblocks4083Nemertea + Entoprocta + Cycliophora is sister to Mollusca; Heterobranchia is sister to remaining Mollusca; Patellogastropoda clusters with Solenogastres and Cephalopoda
Large set (142 taxa, excluding Patellogastropoda)Mafft-Gblocks5550Annelida s.l. + Entoprocta + Cycliophora is sister to Mollusca
Large set (142 taxa, excluding Patellogastropoda)Mafft-Aliscore8721Main analyses (Figure 2, Supplementary Figure )

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