Abstract
The mulberry white caterpillar, Rondotia menciana Moore (Lepidoptera: Bombycidae) is a species with closest relationship with Bombyx mori and Bombyx mandarina, and the genetic information of R. menciana is important for understanding the diversity of the Bombycidae. In this study, the mitochondrial genome (mitogenome) of R. menciana was amplified by polymerase chain reaction and sequenced. The mitogenome of R. menciana was determined to be 15,301 bp, including 13 protein-coding genes (PCGs), 2 ribosomal RNA genes, 22 transfer RNA genes, and an AT-rich region. The A+T content (78.87%) was lower than that observed for other Bombycidae insects. All PCGs were initiated by ATN codons and terminated with the canonical stop codons, except for coxII, which was terminated by a single T. All the tRNA genes displayed a typical clover-leaf structure of mitochondrial tRNA. The length of AT-rich region (360 bp) of R. menciana mitogenome is shorter than that of other Bombycidae species. Phylogenetic analysis showed that the R. menciana was clustered on one branch with B. mori and B. mandarina from Bombycidae.
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