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First Report of the Tramp ant Technomyrmex vitiensis Mann, 1921 (Formicidae: Dolichoderinae) in Brazil with Cytogenetic and Sperm Structure Data and an Updated Key to Brazilian Dolichoderinae Genera.
Barros, Luísa Antônia Campos; Chaul, Júlio Cezar Mário; Teixeira, Gisele Amaro; Lod, Rodrigo Batista; Orivel, Jérôme; de Aguiar, Hilton Jeferson Alves Cardoso.
Afiliación
  • Barros LAC; Universidade Federal do Amapá, Campus Binacional, Oiapoque, Amapá, Brazil. E-mail: luufv@yahoo.com.br (Barros); lod.batista@gmail.com (Lod).
  • Chaul JCM; Programa de Pós-graduação em Ecologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil. E-mail: juliocchaul@gmail.com (Chaul).
  • Teixeira GA; Programa de Pós-graduação em Biologia Celular e Estrutural, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil. E-mail: g.amaroteixeira@gmail.com (Teixeira).
  • Lod RB; Universidade Federal do Amapá, Campus Binacional, Oiapoque, Amapá, Brazil. E-mail: luufv@yahoo.com.br (Barros); lod.batista@gmail.com (Lod).
  • Orivel J; CNRS, UMR EcoFoG, AgroParisTech, CIRAD, INRAE, Université de Guyane, Université des Antilles, Campus Agronomique, BP 316, 97379, Kourou Cedex, France. E-mail: jerome.orivel@ecofog.gf (Orivel).
  • de Aguiar HJAC; Universidade Federal do Amapá, Campus Binacional, Oiapoque, Amapá, Brazil. E-mail: luufv@yahoo.com.br (Barros); lod.batista@gmail.com (Lod).
Zool Stud ; 60: e29, 2022.
Article en En | MEDLINE | ID: mdl-36245915
Invasive ants are usually harmful taxa and are considered a potential problem to biodiversity due to their negative ecological impacts, as they can outcompete native ant species. Ten such species are reported in Brazil. In this study, we report for the first time the Asian tramp ant Technomyrmex vitiensis Mann, 1921 at the municipality of Oiapoque, in the Brazilian Amazon. The colony studied contained workers, intercastes, males and larvae, which provided sperm structure and cytogenetic data. Considering the unprecedented report of the genus Technomyrmex as well as the recent finding of the primarily Australian genus Leptomyrmex in Brazil, we present a revised key for the workers of Brazilian Dolichoderinae genera. Technomyrmex vitiensis presented 2n = 16 chromosomes; all metacentrics and comparative cytogenetics on the genus is provided. A single rDNA 18S site located in intrachromosomal region was observed in this species, which is a common trait in ants. The spermatozoa of T. vitiensis had a filiform shape, with 78.13 (± 1.96) µm of total length and 11.43 (± 0.51) µm of nucleus length. Total and nucleus sperm size length fit with the known variation observed in other ant species. The occurrence of T. vitiensis in Brazil is probably a result of traffic between French Guiana and the Amapá state. Cytogenetics and sperm structures of T. vitiensis enhance the biological knowledge of this tramp species. We highlight the scarce knowledge of ant diversity in the state of Amapá and the consequences that the presence of this species may have in this region.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE País/Región como asunto: America do sul / Brasil Idioma: En Revista: Zool Stud Año: 2022 Tipo del documento: Article Pais de publicación: China
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE País/Región como asunto: America do sul / Brasil Idioma: En Revista: Zool Stud Año: 2022 Tipo del documento: Article Pais de publicación: China