Wolbachia plays no role in the one-way reproductive incompatibility between the hybridizing field crickets Gryllus firmus and G. pennsylvanicus.
Heredity (Edinb)
; 101(5): 435-44, 2008 Nov.
Article
em En
| MEDLINE
| ID: mdl-18685571
ABSTRACT
Wolbachia are cytoplasmically inherited alpha-proteobacteria that can cause cytoplasmic incompatibility (CI) in insects. This incompatibility between sperm and egg is evident when uninfected females mate with infected males. Wolbachia-driven reproductive incompatibilities are of special interest because they may play a role in speciation. However, the presence of Wolbachia does not always imply incompatibility. The field crickets Gryllus firmus and G. pennsylvanicus exhibit a very clear unidirectional incompatibility and have been cited as a possible example of Wolbachia-induced CI. Here, we conduct curing experiments, intra- and interspecific crosses, cytological examination of Wolbachia in testes and Wolbachia quantifications through real-time PCR. All of our data strongly suggest that Wolbachia are not involved in the reproductive incompatibility between G. firmus and G. pennsylvanicus.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Gryllidae
/
Wolbachia
/
Hibridização Genética
Limite:
Animals
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article