Table 9.
Percentage similarity in nucleotide sequences between isoaccepting leucine tRNA genes (trnLUUR and trnLCUN) within the mt genomes of six vermetids, sixteen additional caenogastropods, and three other molluscs for comparison
| Species | tRNA comparisonab | Percent similarityc |
|---|---|---|
| Dendropoma maximum | LUUR-LCUN | 60.9% |
| Dendropoma gregarium | LUUR-LCUN | 69.0% |
| Eualetes tulipa | LCUN-/-LUUR | 98.4% |
| Thylacodes squamigerusd | LCUN-/-LUUR1 | 66.2% |
| LCUN-/-LUUR2 | 98.4% | |
| LUUR1-LUUR2 | 67.6% | |
| Vermetus erectus | LUUR-LCUN | 76.6% |
| Thylaeodus sp. | LCUN-/-LUUR | 87.0% |
| Oncomelania | LUUR-LCUN | 91.2% |
| Littorina | LUUR-LCUN | 80.3% |
| Calyptraea | LCUN-LUUR | 58.0% |
| Cymatium | LCUN-LUUR | 61.8% |
| Thais | LCUN-LUUR | 58.0% |
| Rapana | LCUN-LUUR | Insufficient datae |
| Conus textile | LCUN-LUUR | 60.9% |
| Conus borgesi | LCUN-LUUR | 60.9% |
| Lophiotoma | LCUN-LUUR | 62.3% |
| Ilyanassa | LCUN-LUUR | 64.7% |
| Nassarius | LCUN-LUUR | 64.7% |
| Bolinus | LCUN-LUUR | 62.3% |
| Cancellaria | LCUN-LUUR | 52.7% |
| Cymbium | LCUN-LUUR | 58.2% |
| Fusiturris | LCUN-LUUR | 66.7% |
| Terebra | LCUN-LUUR | 59.4% |
| Haliotis rubra | LCUN-LUUR | 64.2% |
| Katharina tunicata | LCUN-LUUR | 48.5% |
| Octopus vulgaris | LCUN-LUUR | 66.7% |
a tRNA genes were aligned using Clustal X with subsequent adjustments made according to secondary structure.
b Leucine tRNAs are presented according to relative order and position: one dash indicates that the two tRNAs are adjacent to each other; two dashes separated by a backslash indicate that these two genes are separated by at least one other gene.
c Percent similarity reflects the number of nucleotide matches over the total length of the alignment, excluding the third base of the anticodon triplet.
d Because Thylacodes had two copies of trnLUUR, three pairwise comparisons between leucine tRNA genes were made for this species.
e Sequence contained ambiguous nucleotides.