The complete mitochondrial genome of Bombyx mori strain Yu39 (Lepidoptera: Bombycidae)

Abstract

The complete mitochondrial genome of Bombyx mori strain Yu39 (Lepidoptera: Bombycidae) is a circular molecule of 15,652 bp in length, containing 37 typical mitochondrial genes: 13 protein-coding genes (PCGs), 22 transfer RNAs, 2 ribosomal RNAs and a non-coding AT-rich region. Its gene order and arrangement are identical to the common type found in most insect mitogenomes. All PCGs start with a typical ATN codon, except for the cox1 gene, which begins with uncertained codon. All PCGs terminate in the common stop codon TAA, except for the cox1 and cox2, which use single T as their stop codons. The non-coding AT-rich region is 494-bp long, located between rrnS and trnM genes. It contains some structures of repeated motifs and microsatellite-like elements characteristic of the other lepidopterons.

The complete mitochondrial genome of the silkworm, Bombyx mori strain BaiyuN

“…MG797555), and included 13 protein-coding genes (PCGs), two rRNA genes (rrnL and rrnS), 22 tRNA genes, and a D-loop region (494 bp). The gene order and orientation of B. mori stain BaiyuN were similar to that of B. mori strains published (Zhang et al 2016).…”

Complete mitochondrial genome and phylogenetic analysis of Bombyx mandarina strain Shiquan

“…Eleven PCGs use TAA as the stop codon, whereas COX1 and COX2 end with a single T. All of the 22 tRNA genes, ranging in size from 64 to 75 bp, have a typical cloverleaf secondary structure. The gene order and orientation of B. mandarina were consistent with those of B. mori (Li et al 2016;Zhang et al 2016).…”

“…MN400656) and contains 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and 1 A-T-rich region. The overall base composition was estimated to be 43.16%A, 38.30%T, 11.28%C, and 7.30%G, with a high A-T content of 81.46%, which is similar to that of B. mori (Zhang et al 2016). All PCGs begin with ATN, except for COX1 gene starting with CGA.…”

Complete mitochondrial genome and phylogenetic analysis ofBombyx mandarina(Lepidoptera: Bombycidae)

“…Eleven PCGs use TAA as the stop codon, whereas COX1 and COX2 end with a single T. All of the 22 tRNA genes, ranging in size from 64 to 75 bp, have a typical cloverleaf secondary structure. The gene order and orientation of B. mandarina were consistent with those of B. mori (Li et al 2016;Zhang et al 2016). The phylogenetic relationship was recovered by the Maximum Likelihood method in MEGA 7.0 (Kumar et al 2016), based on complete mitochondrial genomes.…”

“…MK246423), and contains 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and 1 A þ T-rich region. The overall base composition was estimated to be 43.04% A, 38.41% T, 11.25% C, and 7.30% G, with a high A þ T content of 81.45%, which is similar to that of B. mori (Zhang et al 2016). All PCGs begin with ATN, except for COX1 gene starting with CGA.…”