Jiggins, FMH, G. D. D.; Majerus, M. E. N.,
Heredity,
81:87-91.
1998.
Females of the butterfly Acraea encedon produce either entirely female offspring or males and females in an almost 1:1 sex ratio. The sex ratio produced is maternally inherited and was previously attributed to sex chromosome meiotic drive. We report that all-female lineages are associated with low egg-hatching rates and that the trait is cured by antibiotic treatment. We thus reject the hypothesis that this sex ratio bias is caused by a meiotically driven sex chromosome and, instead, propose that it is associated with a maternally inherited bacterium that kills males.
https://www.geneconvenevi.org/wp-content/uploads/2020/04/Heredity-27.png300300Academic Web Pages/wp-content/uploads/2019/10/GC-color-logo-for-header-3277-x-827-1030x260.pngAcademic Web Pages1998-01-11 00:00:002020-04-27 20:15:03Sex ratio distortion in Acraea encedon (Lepidoptera : Nymphalidae) is caused by a male-killing bacterium