title: Karyotype of Triatoma melanocephala Neiva and Pinto (1923). Does this species fit in the Brasiliensis subcomplex?
abstract: Triatoma melanocephala is a rare species of Hemiptera that belongs to the Brasiliensis subcomplex. This subcomplex is composed of cryptic species, and the basic number of chromosomes for triatomines of this subcomplex is 2n = 22; however, T. melanocephala showed a karyotype of 2n = 24 (20A + X(1)X(2)X(3)Y). Thus, this study allowed us to describe the karyotype of the species and, more specifically, to propose the exclusion of T. melanocephala, as well as T. vitticeps and T. tibiamaculata, which also has fragmentation of the X chromosome, from the Brasiliensis subcomplex.
authors: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista - São José do Rio Preto, Rua Cristovão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil. kaiochaboli@hotmail.com
authors: Kaio Cesar Chaboli
authors: KC
authors: Alevi
authors: Priscila Pasqüetto
authors: PP
authors: Mendonça
authors: Nathália Paiva
authors: NP
authors: Pereira
authors: João Aristeu da
authors: JA
authors: Rosa
authors: Maria Tercília Vilela de Azeredo
authors: MT
authors: Oliveira
mesh_terms: D000818:Animals; D059785:Karyotype; D008297:Male; D008677:Metaphase / Q000235:genetics; D012671:Seminiferous Tubules; D014224:Triatoma / Q000145:classification* / Q000235:genetics*