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Table 9 Percentage similarity in nucleotide sequences between isoaccepting leucine tRNA genes (trnL UUR and trnL CUN ) within the mt genomes of six vermetids, sixteen additional caenogastropods, and three other molluscs for comparison

From: Sessile snails, dynamic genomes: gene rearrangements within the mitochondrial genome of a family of caenogastropod molluscs

Species

tRNA comparisonab

Percent similarityc

Dendropoma maximum

L UUR -L CUN

60.9%

Dendropoma gregarium

L UUR -L CUN

69.0%

Eualetes tulipa

L CUN -/-L UUR

98.4%

Thylacodes squamigerus d

L CUN -/-L UUR1

66.2%

 

L CUN -/-L UUR2

98.4%

 

L UUR1 -L UUR2

67.6%

Vermetus erectus

L UUR -L CUN

76.6%

Thylaeodus sp.

L CUN -/-L UUR

87.0%

Oncomelania

L UUR -L CUN

91.2%

Littorina

L UUR -L CUN

80.3%

Calyptraea

L CUN -L UUR

58.0%

Cymatium

L CUN -L UUR

61.8%

Thais

L CUN -L UUR

58.0%

Rapana

L CUN -L UUR

Insufficient datae

Conus textile

L CUN -L UUR

60.9%

Conus borgesi

L CUN -L UUR

60.9%

Lophiotoma

L CUN -L UUR

62.3%

Ilyanassa

L CUN -L UUR

64.7%

Nassarius

L CUN -L UUR

64.7%

Bolinus

L CUN -L UUR

62.3%

Cancellaria

L CUN -L UUR

52.7%

Cymbium

L CUN -L UUR

58.2%

Fusiturris

L CUN -L UUR

66.7%

Terebra

L CUN -L UUR

59.4%

Haliotis rubra

L CUN -L UUR

64.2%

Katharina tunicata

L CUN -L UUR

48.5%

Octopus vulgaris

L CUN -L UUR

66.7%

  1. a tRNA genes were aligned using Clustal X with subsequent adjustments made according to secondary structure.
  2. 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.
  3. c Percent similarity reflects the number of nucleotide matches over the total length of the alignment, excluding the third base of the anticodon triplet.
  4. d Because Thylacodes had two copies of trnL UUR , three pairwise comparisons between leucine tRNA genes were made for this species.
  5. e Sequence contained ambiguous nucleotides.