arrhenotoky


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arrhenotoky

(ˌærəˈnɒtəkɪ)
n
a form of parthenogenesis which produces only male offspring
References in periodicals archive ?
Conduct library research to learn more about at least three of the following: parthenogenesis, apomixis, gynogenesis, pseudogamy, facultative parthenogenesis, cyclical parthenogenesis, heterogony, thelytoky, arrhenotoky, parthenocarpy, and apomictic parthenogenesis.
According to the mode of sex determination, parthenogenesis is classified in: arrhenotoky (unfertilized eggs develop into males, fertilized ones into females), deuterotoky (unfertilized eggs develop into either sex), and thelytoky (unfertilized eggs develop into females) (Mittwoch 1978, de Meeus et al.
Other authors consider the assumptions of the LMC model unrealistic, doubt that females control sex ratios via arrhenotoky and mention a severe lack of empirical testing for the extensions of LMC theory (Frank 1985, Orzack & Parker 1990, Orzack et al.
Other authors think that LMC species are highly inbred, and those with a rigid precise sex ratio will be at a selective advantage over those that allocate males at random; furthermore, wasps can use arrhenotoky to produce such a precise sex ratio (Green 1980, Waage 1982, Green et al.
A new all-female scorpion and the first probable case of arrhenotoky in scorpions.
spiniferus reproduces sexually and infrequently by arrhenotoky (Huang et al.
In addition, the western flower thrips have 2 reproductive modes: arrhenotoky and sexual reproduction, which are thought to contribute to its rapid establishment, development of insecticide resistance, and adaptation to other unfavorable conditions.
Effects of Exposure to High Temperature on the Female Adult under Arrhenotoky Conditions
Under arrhenotoky conditions, the longevity of adult females of the parental generation exposed to 41[degrees]C was shortened significantly from 34.
At 25[degrees]C (control) and after an exposure to 41[degrees]C for 2 h, the longevity of adult females under arrhenotoky was significantly longer than that under sexual reproduction (control: [F.
The transition from arrhenotoky to thelytoky is due either to prevention of chromosome reduction during meiosis or through the postmeiotic fusion of 2 haploid mitotic products.
Their rapid population growth is due in part to arrhenotoky or arrhenotokous parthenogenetk reproduction of whiteflies in which unfertilized eggs develop into males and fertilized eggs to females.