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第一描述的线粒体基因组和系统发育的库蚊科物种从亚马逊地区。

First Description of the Mitogenome and Phylogeny of Culicinae Species from the Amazon Region.

机构信息

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

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

出版信息

Genes (Basel). 2021 Dec 14;12(12):1983. doi: 10.3390/genes12121983.

Abstract

The Culicidae family is distributed worldwide and comprises about 3587 species subdivided into the subfamilies Anophelinae and Culicinae. This is the first description of complete mitochondrial DNA sequences from , , , , and The mitogenomes showed an average length of 15,046 pb and 78.02% AT content, comprising 37 functional subunits (13 protein coding genes, 22 tRNAs, and two rRNAs). The most common start codons were ATT/ATG, and TAA was the stop codon for all PCGs. The tRNAs had the typical leaf clover structure, except . Phylogeny was inferred by analyzing the 13 PCGs concatenated nucleotide sequences of 48 mitogenomes. Maximum likelihood and Bayesian inference analysis placed and in the group, like the accepted classification of genus. was placed in the Aedini tribe, but was revealed to be more related to the genus, a result that may have been hampered by the poor sampling of sequences. clustered with , both related to . was placed as the most external lineage of the Culicinae subfamily. The yielded topology supports the concept of monophyly of all groups and ratifies the current taxonomic classification.

摘要

库蚊科分布于世界各地,包含约 3587 种,分为按蚊亚科和库蚊亚科。这是首次对 、 、 、 和 的完整线粒体 DNA 序列进行描述。线粒体基因组平均长度为 15046pb,A+T 含量为 78.02%,包含 37 个功能亚基(13 个蛋白编码基因、22 个 tRNA 和 2 个 rRNA)。最常见的起始密码子为 ATT/ATG,所有 PCGs 的终止密码子均为 TAA。除 外,tRNA 均具有典型的三叶苜蓿结构。通过分析 48 个线粒体基因组的 13 个 PCGs 联合核苷酸序列进行系统发育推断。最大似然法和贝叶斯推断分析将 和 置于 组,这与公认的 属分类一致。 被置于伊蚊族,但与 属的亲缘关系更近,这一结果可能由于 序列的采样较差而受到阻碍。 与 聚类,两者均与 相关。 作为库蚊亚科的最外系。产生的拓扑结构支持所有组的单系性概念,并证实了当前的分类学分类。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63d2/8701802/e0db5a54b5eb/genes-12-01983-g001.jpg

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