The mitochondrial genome sequences of the round goby and the sand goby reveal patterns of recent evolution in gobiid fish

摘要

BackgroundVertebrate mitochondrial genomes are optimized for fast replication and low cost of RNA expression. Accordingly, they are devoid of introns, are transcribed as polycistrons and contain very little intergenic sequences. Usually, vertebrate mitochondrial genomes measure between 16.5 and 17 kilobases (kb).