Suppr超能文献

白线斑蚊、白纹伊蚊、辛古按蚊和热带伊蚊(双翅目:蚊科)的线粒体基因组测序和系统发育分析。

Mitochondrial genome sequencing and phylogeny of Haemagogus albomaculatus, Haemagogus leucocelaenus, Haemagogus spegazzinii, and Haemagogus tropicalis (Diptera: Culicidae).

机构信息

Graduate Program in Parasitary Biology in the Amazon, Center of Biological and Health Sciences, State University of Pará, Belém, 66095-662, Brazil.

Arbovirology and Hemorrhagic Fevers Section, Evandro Chagas Institute - IEC/MS/SVS, Ananindeua, 67030-000, Brazil.

出版信息

Sci Rep. 2020 Oct 12;10(1):16948. doi: 10.1038/s41598-020-73790-x.

Abstract

The genus Haemagogus (Diptera: Culicidae) comprises species of great epidemiological relevance, involved in transmission cycles of the Yellow fever virus and other arboviruses in South America. So far, only Haemagogus janthinomys has complete mitochondrial sequences available. Given the unavailability of information related to aspects of the evolutionary biology and molecular taxonomy of this genus, we report here, the first sequencing of the mitogenomes of Haemagogus albomaculatus, Haemagogus leucocelaenus, Haemagogus spegazzinii, and Haemagogus tropicalis. The mitogenomes showed an average length of 15,038 bp, average AT content of 79.3%, positive AT-skews, negative GC-skews, and comprised 37 functional subunits (13 PCGs, 22 tRNA, and 02 rRNA). The PCGs showed ATN as start codon, TAA as stop codon, and signs of purifying selection. The tRNAs had the typical leaf clover structure, except tRNA. Phylogenetic analyzes of Bayesian inference and Maximum Likelihood, based on concatenated sequences from all 13 PCGs, produced identical topologies and strongly supported the monophyletic relationship between the Haemagogus and Conopostegus subgenera, and corroborated with the known taxonomic classification of the evaluated taxa, based on external morphological aspects. The information produced on the mitogenomes of the Haemagogus species evaluated here may be useful in carrying out future taxonomic and evolutionary studies of the genus.

摘要

嗜血锥蝇属(双翅目:蚊科)包含具有重要流行病学意义的物种,这些物种参与了南美的黄热病病毒和其他虫媒病毒的传播循环。到目前为止,只有 Haemagogus janthinomys 具有完整的线粒体序列。鉴于缺乏关于该属进化生物学和分子分类学方面的信息,我们在此报告 Haemagogus albomaculatus、Haemagogus leucocelaenus、Haemagogus spegazzinii 和 Haemagogus tropicalis 的线粒体基因组的首次测序结果。线粒体基因组的平均长度为 15038bp,平均 AT 含量为 79.3%,具有正 AT 倾斜、负 GC 倾斜,包含 37 个功能亚基(13 个 PCG、22 个 tRNA 和 02 个 rRNA)。PCG 以 ATN 作为起始密码子,TAA 作为终止密码子,存在纯化选择的迹象。tRNA 具有典型的三叶苜蓿结构,除了 tRNA。基于所有 13 个 PCG 的串联序列进行的贝叶斯推断和最大似然法的系统发育分析产生了相同的拓扑结构,并强烈支持 Haemagogus 和 Conopostegus 亚属之间的单系关系,并且与基于评估分类群外部形态特征的已知分类学分类相一致。这里评估的嗜血锥蝇属物种的线粒体基因组信息可能有助于开展该属的未来分类学和进化研究。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4793/7550346/05e8d265417a/41598_2020_73790_Fig1_HTML.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验