Borsa Philippe, Kjellberg F. (1996). Experimental evidence for pseudoarrhenotoky in Hypothenemus hampei (Coleoptera : Scolytidae). Heredity, 76, p. 130-135. ISSN 0018-067X.
Titre du document
Experimental evidence for pseudoarrhenotoky in Hypothenemus hampei (Coleoptera : Scolytidae)
Année de publication
1996
Type de document
Article
Auteurs
Borsa Philippe, Kjellberg F.
Source
Heredity, 1996,
76, p. 130-135 ISSN 0018-067X
Species breeding under local mate competition conditions have sex ratios biased towards females, a trait that is often associated with male haploidy (arrhenotoky). We used insecticide resistance as a genetic marker in Hypothenemus hampei, a local mate competing scolytid beetle that is cytologically diplo-diploid, for investigating the inheritance of nuclear genes. We confirmed that males express the resistance phenotype that they inherit from their mother, whatever their father. The segregation of resistance phenotypes in F2 females significantly departed from the Mendelian model, and were in accordance with the arrhenotokous model, indicating that the parental genes were eliminated between F1 and F2. This finding (pseudo-arrhenotoky) constitutes a step towards an understanding of the mechanism by which diplo-diploidy evolves to arrhenotoky in local mate competing insects. (Résumé d'auteur)
Plan de classement
Biologie / Physiologie [080ZOOGEN04]
Descripteurs
ENTOMOLOGIE GENERALE ; INSECTE ; BIOLOGIE ; REPRODUCTION ; SEX RATIO ; INSECTICIDE CHIMIQUE ; SENSIBILITE RESISTANCE ; GENOTYPE ; PARTHENOGENESE ; ARRHENOTOQUIE
