. The total length of the mitochondrial genome is 16,667 bp, with the base composition of 32.90% A, 26.55% T, 25.94% C, and 14.61% G. It contains two ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes, and a major non-coding control region (D-loop region). The arrangement of these genes is the same as that found in the Siluriformes. All the protein initiation codons are ATG, except for cox1 that begins with GTG. The cytochrome c oxidase subunit I (COX1) amino acid sequence of C. duplicareus and other 27 species from 8 genera were used for phylogenetic analysis by maximum likelihood method. The topology demonstrated that all species are divided into two groups (Callichthyidae and Cyprinidae), and the C. duplicareus was clustered with C. nattereri.
This is crazy if the authors are suggesting this is the phylogeny of Corydoradinae.
Figure 1. Phylogenetic tree based on the maximum likelihood method of cytochrome c oxidase subunit I. The bootstrap values for the maximum likelihood analysis are shown on the branches. Note the black triangle sign represents the species in this study.
dw1305 wrote: 14 May 2019, 10:25I see what you mean. If I was a taxonomist I might be licking my lips, because it would suggest that a lot of new genus names are required for "ex
To stir the pot, I've often wondered what would happen to the taxa if we discovered that traits which we think define lineages (like long snout) turned out to be nothing more than allelic variants like eye color in mammals. That would explain why so many long snout and short snout "species" live together with the same color patterns.
