Zhang Yong-Liang, Zhao Jin-Hui, Zhou Qi-Ming
a College of Life Science and Agronomy, Zhoukou Normal University , Zhoukou City , Henan Province , China and.
b Sericultural Science Research Institute of Henan Province , Nanyang City , Henan Province , China.
Mitochondrial DNA A DNA Mapp Seq Anal. 2016 Nov;27(6):4128-4129. doi: 10.3109/19401736.2014.1003876. Epub 2015 Jan 28.
The complete mitochondrial genome of Bombyx mori strain Yu5 (Lepidoptera: Bombycidae) is a circular molecule of 15,644 bp in length, containing 37 typical coding genes and one non-coding AT-rich region. The overall composition of the mitogenome was A (43.07%), G (7.34%), C (11.33%), and T (38.26%). Its gene order and content were identical to the common type found in most insect mitogenomes. All protein coding genes (PCGs) started with a typical ATN initiation codon, except for the cox1 gene, which began with CGA codon. Eleven genes used standard complete termination codon TAA, whereas the cox1 and cox2 genes ended with single T. All tRNA genes displayed typical secondary cloverleaf structures as those of other insects. Additionally, the 494 bp long AT-rich region contained several structures common to the other lepidopterons, such as some structures of repeated motifs and microsatellite-like elements and a poly-A element upstream of transfer RNA M (trnM) gene.
家蚕品种渝5（鳞翅目：蚕蛾科）的完整线粒体基因组是一个长度为15,644 bp的环状分子，包含37个典型的编码基因和一个富含AT的非编码区。线粒体基因组的总体组成为：A（43.07%）、G（7.34%）、C（11.33%）和T（38.26%）。其基因顺序和内容与大多数昆虫线粒体基因组中发现的常见类型相同。所有蛋白质编码基因（PCGs）均以典型的ATN起始密码子开始，但细胞色素氧化酶亚基1（cox1）基因以CGA密码子开始。11个基因使用标准的完全终止密码子TAA，而cox1和cox2基因以单个T结尾。所有tRNA基因都呈现出与其他昆虫典型的二级三叶草结构。此外，这个长度为494 bp的富含AT的区域包含了一些其他鳞翅目昆虫共有的结构，如一些重复基序和微卫星样元件的结构，以及转移RNA M（trnM）基因上游的一个多聚A元件。
