Department of Sericulture, College of Bioscience and Biotechnology, Shenyang Agricultural University, 120 Dongling Road, Shenyang110866, China.
Oak Silkmoth Group, Sericultural Institute of Jilin Province, 399 South Songjiang Road, Jilin132200, China.
Bull Entomol Res. 2022 Apr;112(2):243-252. doi: 10.1017/S0007485321000808. Epub 2021 Sep 3.
To explore the characteristics of the mitochondrial genome (mitogenome) of the squeaking silkmoths Rhodinia, a genus of wild silkmoths in the family Saturniidae of Lepidoptera, and reveal phylogenetic relationships, the mitogenome of Rhodinia fugax Butler was determined. This wild silkmoth spins a green cocoon that has potential significance in sericulture, and exhibits a unique feature that its larvae can squeak loudly when touched. The mitogenome of R. fugax is a circular molecule of 15,334 bp long and comprises 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and an A + T-rich region, consistent with previous observations of Saturniidae species. The 370-bp A + T-rich region of R. fugax contains no tandem repeat elements and harbors several features common to the Bombycidea insects, but microsatellite AT repeat sequence preceded by the ATTTA motif is not present. Mitogenome-based phylogenetic analysis shows that R. fugax belongs to Attacini, instead of Saturniini. This study presents the first mitogenome for Rhodinia genus.
为了探索鳞翅目大蚕蛾科野蚕属 squeaking 蚕蛾 Rhodinia 的线粒体基因组（mitogenome）特征，并揭示其系统发育关系，测定了 Rhodinia fugax Butler 的线粒体基因组。这种野蚕吐绿色茧，在蚕业中具有潜在意义，并且具有一个独特的特征，即其幼虫在受到触碰时可以发出响亮的声音。R. fugax 的线粒体基因组是一个长 15334bp 的圆形分子，包含 13 个蛋白质编码基因、两个核糖体 RNA 基因、22 个转移 RNA 基因和一个 A+T 丰富区，与之前观察到的大蚕蛾科物种一致。370bp 的 A+T 丰富区不含串联重复元件，具有鳞翅目昆虫的几个共同特征，但不存在以 ATTTA 基序为先导的微卫星 AT 重复序列。基于线粒体基因组的系统发育分析表明，R. fugax 属于 Attacini，而不是 Saturniini。本研究首次报道了 Rhodinia 属的线粒体基因组。
