Karyotypic characterization by mitosis, meiosis and C-banding of Eriopis connexa Mulsant (Coccinellidae: Coleoptera: Polyphaga), a predator of insect pests

• Autor(a) principal: Maffei, Eliane Mariza Dortas
• Data de Publicação: 2000
• Outros Autores: Gasparino, Eliane, Pompolo, Silvia das Gracas
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: https://doi.org/10.1111/j.1601-5223.2000.00079.x; http://www.locus.ufv.br/handle/123456789/14255
• topic: Karyotypic characterization; Eriopis connexa; Insect Pests

Eriopis connexa presents a chromosome number of 2n = 18 + XX for most females analyzed and a meioformula of n = 9 + Xyp for all males. A small metacentric B chromosome restricted to females occurred in 10% of our sample and, when submitted to C-banding, it was shown to be almost completely euchromatic. Chromosome pairs 2 and 3 had satellites and probably contained the nucleolar organizer regions (NORs). C-band analysis also revealed that the constitutive heterochromatin was localized in the centromeres of all chromosomes in the complement.