title: [Wolbachia--a new bacteria causing sex ratio bias in the two-spot lady-bird Adalia bipunctata L].
abstract: Some of the male-killing lines of the two-spot ladybird Adalia bipunctata L. isolated from the populations of Moscow and Tomsk and having a female-biased sex ratio were found to be infected with a bacterium of the genus Wolbachia. This fact is the first demonstration of the ability of Wolbachia to kill males of a host insect. The coexistence of females infected with different male-killing bacteria was recorded in the population of Moscow.
authors.affiliation: Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia.
authors.forename: I A
authors.initials: IA
authors.lastname: Zakharov
authors.forename: I I
authors.initials: II
authors.lastname: Goriacheva
authors.forename: E V
authors.initials: EV
authors.lastname: Shaĭkevich
authors.forename: J H
authors.initials: JH
authors.lastname: Schulenburg
authors.forename: E N
authors.initials: EN
authors.lastname: Majerus
mesh_terms: D000818:Animals; D005260:Female; D007313:Insecta / Q000382:microbiology* / Q000502:physiology*; D008297:Male; D012737:Sex Factors; D012744:Sex Ratio; D020577:Wolbachia / Q000302:isolation & purification*