Rearrangement events
By
comparing the composition and structure of the mtgenomes of these 90
Tenebrionoidea species, a total of seven Tenebrionoidea species were
found to have gene rearrangement events. These rearrangement events
occurr in the three different families Lagriidae, Mordellidae and
Pyrochroidae (Fig. 3). In others families, the gene order of the
mtgenome is exactly the same as that of drosophilid . The tRNA
genes have the highest frequency of rearrangement (trnW-trnC-trnYand trnA-trnR-trnN-trnS-trnE-trnF gene cluster), followed by
protein coding genes. The first one is found in thetrnW-trnC-trnY gene cluster, and shuffling of trnW gene
and trnC gene occurs in three species of Schizotus
pectinicornis (Pyrochroidae), Pyrochroidae sp. (Pyrochroidae)
and Anisostira rugipennis (Lagriidae). The second one in theA. rugipennis of Lagriidae, trnD and ATP8transposition to the upstream of NAD2 , which is the first
rearrangement event of protein coding genes found in the family
Lagriidae. The last one is found in thetrnA-trnR-trnN-trnS-trnE-trnF gene cluster, and shuffling oftrnR gene and trnN gene occurs in four species of the
family Mordellidae: Mordellidae sp., Mordellochroa
milleri , Mordella atrata and Tomoxia bucephala .