thelytoky


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thelytoky

a form of PARTHENOGNESIS in which females give rise to more females without fertilization.
References in periodicals archive ?
In orthopteroid insects, thelytoky is the sole known form of parthenogenesis (White 1977).
In the Orthoptera Saltatoria occasional thelytoky (tychoparthenogenesis) has been reported in several species of otherwise sexual insects (see Pardo et al.
Once thelytoky arose, it appears that genetic diversity was augmented via inter-breeding with sexual taxa.
2006b) from the only other closely related Wolbachia strain in this analysis is known to induce thelytoky in its host, Muscidifurax uniraptor Kogan & Legner (Gottlieb & Zchori-Fein 2001, Fig 1).
White was clearly fascinated by thelytoky, as he persisted in calling it in the scientific meetings of that time (perhaps because of the resonance he could give to that particular word rather than because of its precise biological meaning).
Keywords: Sibling species, karyotype, geographic parthenogenesis, taxonomy, thelytoky
Thelytoky may enable the clones to survive even in suboptimal habitats, which are, however, not suitable to harbour the high abundance necessary for sexual reproduction.
Thelytoky (parthenogenetic production of daughters) as a mode of reproduction can result in twice as many agriculturally useful parasitoids per generation.
Thelytoky occurs in a number of agriculturally important parasitoid families, including natural enemies of tephritid larvae (see Ovruski et al.
Whether or not thelytoky arose independently in both cases or had a common origin could be determined through genetic analysis of individuals from both populations or by examining whether or not both strains possess and share similar strains of sex ratio distorting agents.