Fig. 3 in Molecular phylogeny and comparative morphology reveal the species validity and systematic position of Lepidodesma (Bivalvia: Unionidae)

Fig. 3 Schematic drawing for gene arrangement and structure characteristics of Lepidodesma aligera and Lepidodesma languilati. Protein-coding and tRNA genes are colored to show the difference and commonness of codon (and anti-codon) usage. Arabic numerals in the figure represent the length (bp) of the corresponding gene. Abbreviation of 22 tRNAs: H, tRNAHis; A, tRNAAla; S2, tRNASer2; S1,tRNA Ser1; E, tRNAGlu; M, tRNAMet; W, tRNATrp; R, tRNAArg; K,tRNA Lys; T, tRNAThr; Y, tRNATyr; L1, tRNALeu1; N, tRNAAsn; P,tRNA Pro; F, tRNAPhe; Q, tRNAGln; C, tRNACys; I, tRNAIle; V, tRNA Val; L2, tRNALeu2; G, tRNAGly; D, tRNAAsp