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Genetics and Molecular Biology

versão impressa ISSN 1415-4757versão On-line ISSN 1678-4685

Genet. Mol. Biol., ahead of print  Epub 10-Jun-2019

http://dx.doi.org/10.1590/1678-4685-gmb-2018-0055 

Articles

[PROVISIONAL] Mitochondrial genomes of genus Atta (Formicidae: Myrmicinae) reveal high gene organization and giant intergenic spacers

Josefa T. V. Barbosa2 

Marcílio S. Barbosa1 

Suzyane Morais1 

Antônio E. G. Santana2 

Cicero Almeida1 

1Laboratory of Genetics Resources, Universidade Federal de Alagoas, Campus Arapiraca, Maceió, Al, Brazil

2Centro de Ciências Agrárias, Universidade Federal de Alagoas, Maceió, AL, Brazil

Abstract

The ants of the genus Atta are considered an important pest to agriculture in Latin América, although, Atta species are important contributors to ecosystem functions in the various habitats in which they occur. Next-generation sequencing product millions or billions of short reads, however, is necessary to applied methods for assembly of the genomes. The aim of this study was to assembly four complete mitochondrial genomes of the genus Atta, construct the phylogenomic tree and analyze the gene content, order and organization. The mitogenomes of A. colombica, A. opaciceps, A. texana, and A. sexdens rubropilosa contained 18,392; 19,257; 19,709 and 19,748 bp, respectively. For A. opaciceps, A. colombica and A. texana, the mitogenomes showed a typical genome for an insect, which showed 13 protein-coding genes, 22 tRNA, and 2 rRNA, which the genes displayed in the same order. Analysis for intergenic spacer regions showed that Atta intergenic spacers are larger than those of the outgroups. The phylogenomic analyses showed similar topologies with previous phylogenetic analyses using partial genes cytochrome oxidase I, of which sowed high clade support values. We conclude that Atta mitogenomes are characterized by high conservation in gene order and have giant intergenic spacers in the genus Atta.

Keywords: ants; evolution; mitogenomes

Full text available in PDF.

Received: April 03, 2018; Accepted: December 14, 2018

Send correspondence to: Cícero Almeida. Campus de Arapiraca, Universidade Federal de Alagoas, Avenida Manoel Severino Barbosa s/n, Rodovia AL 115, km 6,5. Bairro Bom Sucesso, Arapiraca, AL, Brazil. Phone number: 55 823482-1831. E-mail: cicero@arapiraca.ufal.br.

Creative Commons License License information: This is an open-access article distributed under the terms of the Creative Commons Attribution License (type CC-BY), which permits unrestricted use, distribution and reproduction in any medium, provided the original article is properly cited.