First complete mitochondrial genome from the brown lacewings (Neuroptera: Hemerobiidae)

Abstract

The first complete mitochondrial genome of the family Hemerobiidae (Neuronema laminatum Tjeder, 1936) is sequenced in this study. The complete mitochondrial genome is a typical double-stranded circular molecule of 17,164 bp (GenBank accession number: KR078257) containing 37 typical animal mitochondrial gene and an A + T-rich region. The gene order is identical to that of the putative ancestral arrangement of insects and other lacewings. Thirteen protein-coding genes (PCGs) possessed common triplet initiation codons ATN and mostly terminate with TAN codons except for ND5 with a single T residue adjacent to a downstream tRNA gene. All the 22 tRNAs, ranging from 63 to 72 bp, can be folded into classic clover-leaf secondary structure except for tRNA^Ser(AGN), in which the dihydrouridine (DHU) arm did not form a stable stem-loop structure. The control region is 2131 bp long with an A + T content of 87.4%. In the sampled families of Neuroptera, Osmylidae + the remaining families, Hemerobiidae + Mantispidae, Polystoechotidae + Rapismatidae, are recovered in phylogenetic analyses with high supports.

• Hemerobiidae
• mitochondrial genome
• Neuronema laminatum
• Neuroptera

Acknowledgements

The authors thank very much for the assistance in the laboratory work given by the research group of Wanzhi Cai.

Declaration of interest

The authors report that they have no conflicts of interest. The authors alone are responsible for the content and writing of this article. This research has been supported by the National Natural Science Foundation of China (Project no. 31272352) and the Foundation of the Ministry of Agriculture of China (Project no. 201103022).