Yin Yonghua, Qu Fujuan, Yang Zhongwu, Zhang Xiuyue, Yue Bisong
Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610064, People's Republic of China,
Mol Biol Rep. 2014 Feb;41(2):1109-16. doi: 10.1007/s11033-013-2957-9. Epub 2013 Dec 31.
The rice leafroller, Cnaphalocrocis medinalis, is one of the most important pests on rice and possesses striking flight ability. We have determined the nucleotide sequence of the 15,377 bp of a C. medinalis mitochondrial genome (mtDNA). The mtDNA encodes 37 genes and shows a unique lepidopteran CR-M-I-Q arrangement. Three possible substructures were detected in C. medinalis and some other lepidopteran insects' control region. The findings might be relevant to the regulation of mtDNA replication and transcription. Phylogenetic relationships were reconstructed among 19 families in Lepidoptera so far. Cnaphalocrocis medinalis forms a reciprocal monophyletic group with Ostrinia in clade Crambidae instead of Pyralidae. The topology between Papilionoidea and other superfamilies showed an apparent contradiction with traditional Lepidopteran classification. As a well-known migratory insect, the molecular information contained in C. medinalis mtDNA may provide a further insight into the evolution of mitochondria genes and insect species, and may help to better understanding the energy metabolism of invertebrates.
稻纵卷叶螟（Cnaphalocrocis medinalis）是水稻上最重要的害虫之一，具有显著的飞行能力。我们测定了稻纵卷叶螟线粒体基因组（mtDNA）15377 bp的核苷酸序列。该mtDNA编码37个基因，呈现出独特的鳞翅目CR-M-I-Q排列。在稻纵卷叶螟和其他一些鳞翅目昆虫的控制区检测到三种可能的亚结构。这些发现可能与mtDNA复制和转录的调控有关。目前已重建了鳞翅目19个科之间的系统发育关系。稻纵卷叶螟在草螟科中与玉米螟形成一个相互单系类群，而不是螟蛾科。凤蝶总科与其他总科之间的拓扑结构与传统的鳞翅目分类明显矛盾。作为一种著名的迁飞昆虫，稻纵卷叶螟mtDNA中包含的分子信息可能为线粒体基因和昆虫物种的进化提供进一步的见解，并有助于更好地理解无脊椎动物的能量代谢。
