Voltar
Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Comparative cytogenetic analysis in 13 tortoise beetles (Coleoptera: Chrysomelidae: Cassidinae) from Brazil

2016; Institute of Entomology; Volume: 113; Linguagem: Inglês

10.14411/eje.2016.046

ISSN

1802-8829

Autores

A. Lopes, Flávia Rodrigues Fernandes, Marielle Cristina Schneider,

Tópico(s)

Plant Virus Research Studies

Resumo

fi nding was corroborated by a phylogenetic study using molecular data (Gómez-Zurita et al., 2008).Cytogenetically, only 117 Cassidinae species belonging to 13 tribes have been investigated to date (for revision see De Julio et al., 2010).The tortoise beetles are considered as a group with conserved karyotype, in which approximately 52% of the analyzed species showed 2n = 16 + Xy p , with metacentric and/or submetacentric chromosomes (De Julio et al., 2010).However, cytogenetic records also demonstrated that the diploid numbers can range from 2n = 16 to 2n = 51, as well the sex chromosome systems, which can be either simple -Xy p , X0, Xy, Xy c , Xy r , neoXY, or multiple -Xyy p , X p neoXneoY p , X p neoXneoy p , neoX p neoyy p , neoX p1 neoX p2 neoXneoy p , neoX p1 neoX p2 neoXneoy, X p1 X p2 -neoXneoy (for review see De Julio et al., 2010).These variations in the diploid number and sex chromosome systems are more or less frequent according to the tribe considered.In Cassidini and Mesomphaliini, 44% and 100%

Referência(s)