Characterization of the complete mitochondrial genome of Spilarctia robusta (Lepidoptera: Noctuoidea: Erebidae) and its phylogenetic implications

被引:9
|
作者
Sun, Yu [1 ]
Tian, Sen [1 ]
Qian, Cen [1 ]
Sun, Yu-Xuan [1 ]
Abbas, Muhammad N. [1 ]
Kausar, Saima [1 ]
Wang, Lei [1 ]
Wei, Guoqing [1 ]
Zhu, Bao-Jian [1 ]
Liu, Chao-Liang [1 ]
机构
[1] Anhui Agr Univ, Coll Life Sci, 130 Changjiang West Rd, Hefei 230036, Peoples R China
基金
中国国家自然科学基金;
关键词
Lepidoptera; Noctuoidea; Erebidae; Spilarctia robusta; phylogenetic analyses; mitogenome; evolution; gene rearrangement; COMPLETE NUCLEOTIDE-SEQUENCE; COMPLETE MITOGENOME; MOLECULAR PHYLOGENY; SILKWORM MOTH; EVOLUTION; CLASSIFICATION; TRANSCRIPTION; VARIABILITY; GEOMETRIDAE; PROGRAM;
D O I
10.14411/eje.2016.076
中图分类号
Q96 [昆虫学];
学科分类号
摘要
The complete mitochondrial genome (mitogenome) of Spilarctia robusta (Lepidoptera: Noctuoidea: Erebidae) was sequenced and analyzed. The circular mitogenome is made up of 15,447 base pairs (bp). It contains a set of 37 genes, with the gene complement and order similar to that of other lepidopterans. The 12 protein coding genes (PCGs) have a typical mitochondrial start codon (ATN codons), whereas cytochrome c oxidase subunit 1 (cox1) gene utilizes unusually the CAG codon as documented for other lepidopteran mitogenomes. Four of the 13 PCGs have incomplete termination codons, the cox1, nad4 and nad6 with a single T, but cox2 has TA. It comprises six major intergenic spacers, with the exception of the A+ T-rich region, spanning at least 10 bp in the mitogenome. The nucleotide composition of the genome is greatly A+T biased (81.09%), with a negative AT skewness (-0.007), indicating the presence of fewer As than Ts, similar to other Noctuoidea. The A+ T-rich region is 343 bp long, and contains some conserved regions, including an " ATAGA" motif followed by a 19 bp poly-T stretch, a microsatellite-like (AT)(9) and a poly-A element, a characteristic shared with other lepidopteran mitogenomes. Phylogenetic analysis, based on 13 PCGs using Maximum likelihood methods revealed that S. robusta belongs to the superfamily Noctuoidea.
引用
收藏
页码:558 / 570
页数:13
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