The complete mitochondrial genome of the pink stem borer, Sesamia inferens, in comparison with four other Noctuid moths.
The complete mitochondrial genome of the pink stem borer, Sesamia inferens, in comparison with four other Noctuid moths.
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DOI：
10.3390/ijms130810236
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发表时间：
2012
影响因子：
5.6
通讯作者：
Du YZ
中科院分区：
文献类型：
--
作者：
Chai HN;Du YZ
本文对夜蛾蛾（鳞翅目：夜蛾科）的线粒体基因组（线粒体基因组）进行了测序，并与其他4种夜蛾进行了比较。分析的所有有丝分裂基因组在基因含量、基因组组织、核苷酸比较和密码子使用方面显示出相似的特征。12个蛋白编码基因（PCGs）使用标准ATN，但cox1基因使用CGA作为起始密码子；cox1、cox2和nad4基因的有丝分裂基因组终止密码子T被截断。除trnS1（AGN）的二氢吡啶臂（东华大学）未形成稳定的茎环结构外，所有tRNA基因均具有典型的三叶草二级结构。从夜蛾有丝分裂基因组推断的rrnL和rrnS基因的二级结构与其他夜蛾相似。在富含A+ t的区域，所有夜蛾都观察到保守基序“ATAGA”和长t延伸，但其他特定的串联重复元件变化更大。此外，在富含a + t区域的trnM上游，没有poly-A元件，锦绣丝虫有丝分裂基因组包含一个潜在的茎环结构、一个重复的17-bp重复元件、一个重复的片段和一个微卫星“（AT）7”。最后，基于线粒体13个PCGs的氨基酸序列重建了系统发育关系，支持了传统的基于形态学的夜蛾科内关系观点。
The complete 15,413-bp mitochondrial genome (mitogenome) of Sesamia inferens (Walker) (Lepidoptera: Noctuidae) was sequenced and compared with those of four other noctuid moths. All of the mitogenomes analyzed displayed similar characteristics with respect to gene content, genome organization, nucleotide comparison, and codon usages. Twelve-one protein-coding genes (PCGs) utilized the standard ATN, but the cox1 gene used CGA as the initiation codon; cox1, cox2, and nad4 genes had the truncated termination codon T in the S. inferens mitogenome. All of the tRNA genes had typical cloverleaf secondary structures except for trnS1(AGN), in which the dihydrouridine (DHU) arm did not form a stable stem-loop structure. Both the secondary structures of rrnL and rrnS genes inferred from the S. inferens mitogenome closely resembled those of other noctuid moths. In the A+T-rich region, the conserved motif “ATAGA” followed by a long T-stretch was observed in all noctuid moths, but other specific tandem-repeat elements were more variable. Additionally, the S. inferens mitogenome contained a potential stem-loop structure, a duplicated 17-bp repeat element, a decuplicated segment, and a microsatellite “(AT)7”, without a poly-A element upstream of the trnM in the A+T-rich region. Finally, the phylogenetic relationships were reconstructed based on amino acid sequences of mitochondrial 13 PCGs, which support the traditional morphologically based view of relationships within the Noctuidae.
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