Abstract

Hemlock wooly adelgid (HWA), Adelgests ugae Annand (Hemiptera: Adelgidae), is a species native to Asia but later ravages Endangered hemlock forests (Tsuga spp.) in eastern North America. In this study, we obtained the first complete mitochondrial genome of HWA (16,509 bp in length) using meta-genomic sequencing method. The HWA mitogenome has a general gene annotation as other aphids, comprising 13 protein-coding genes, 22 transfer RNAs, and 2 ribosomal RNAs. Our phylogenetic result showed Aphidoidea is sister to Coccoidea and the newly sequenced mitogenome is put on the correct position, sister to Adelgeslaricis.

摘要

Hemlock羊毛adelgid（HWA），Adelgests ugae Annand（Hemiptera：Adelgidae）是一种原产于亚洲，但后来在北美东部肆虐的濒危铁杉森林（Tsuga spp。）。在这项研究中，我们使用元基因组测序方法获得了HWA的第一个完整的线粒体基因组（长度为16,509 bp）。HWA有丝分裂基因组具有与其他蚜虫一样的通用基因注释，包括13个蛋白质编码基因，22个转移RNA和2个核糖体RNA。我们的系统发育结果表明，蚜虫是球虫的姐妹，而新测序的有丝分裂基因组恰好是Adelgeslaricis的姐妹。