Studies on Natural Populations of Drosophila. Iv. Genetic Variances of and Correlations Between Four Characters in D. Melanogaster and D. Simulans

Tantawy, A. O.; Rakha, F. A.

doi:10.1093/genetics/50.6.1349

Cited by 44 publications

(2 citation statements)

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“…Specifically, monogamy-line females died faster than control-line females when housed continuously with control-line males. Although the current study found no significant relationship between female size and longevity (the relationship was positive) or resistance to male harm, studies have overwhelmingly found significant positive relationships between size and longevity for both females and males of D. melanogaster and related species (Robertson 1957;Tantawy & Vetukhiv 1960;Tantawy & Rakha 1964;Tantawy & El-Helw 1966;Partridge & Farquhar 1983;Partridge et al 1986). Thus, monogamyline females may have died faster because they were smaller, not because they were less resistant to maleinduced harm.…”

Section: Discussioncontrasting

confidence: 87%

Harm to females increases with male body size inDrosophila melanogaster

Pitnick

García‐González

2002

Proc. R. Soc. Lond. B

205

192

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Previous studies indicate that female Drosophila melanogaster are harmed by their mates through copulation. Here, we demonstrate that the harm that males inflict upon females increases with male size. Specifically, both the lifespan and egg-production rate of females decreased significantly as an increasing function of the body size of their mates. Consequently, females mating with larger males had lower lifetime fitness. The detrimental effect of male size on female longevity was not mediated by male effects on female fecundity, egg-production rate or female-remating behaviour. Similarly, the influence of male size on female lifetime fecundity was independent of the male-size effect on female longevity. There was no relationship between female size and female resistance to male harm. Thus, although increasing male body size is known to enhance male mating success, it has a detrimental effect on the direct fitness of their mates. Our results indicate that this harm is a pleiotropic effect of some other selected function and not an adaptation. To the extent that females prefer to mate with larger males, this choice is harmful, a pattern that is consistent with the theory of sexually antagonistic coevolution.

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Section: Discussioncontrasting

confidence: 87%

Harm to females increases with male body size inDrosophila melanogaster

Pitnick

García‐González

2002

Proc. R. Soc. Lond. B

205

192

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“…B ODY size is strongly associated with fitness in various species of animals (ROFF 1992; STEARNS 1992). In laboratory studies on Drosophila mlanogaster, adult life history characteristics such as female fecundity (ROBERTSON 1957;TANTAWY and RAKHA 1964), adult longevity (TANTAWY and RAKHA 1964; PARTRIDGE and FOWLER 1992; but see HILLESHEIM and STEARNS 1992) and male mating success (EWING 1961(EWING , 1964 have shown positive genetic correlations with body size. In contrast, negative genetic correlations of body size with larval development rate (PARTRIDGE and FOWLER 1993), and consequently with larval competitive ability and larval viability ( SANTOS et al 1992; PARTRIDGE and FOWLER 1993), have been found.…”

mentioning

confidence: 99%

Cellular basis and developmental timing in a size cline of Drosophila melanogaster.

James¹,

Azevedo²,

Partridge³

1995

Genetics

249

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We examined 20 Drosophila melanogaster populations collected from a 2600-km north-south transect in Australia. In laboratory culture at constant temperature and standard larval density, a genetic cline in thorax length and wing area was found, with both traits increasing with latitude. The cline in wing area was based on clines in both cell size and cell number, but was primarily determined by changes in cell number. Body size and larval development time were not associated among populations. We discuss our results in the context of selection processes operating in natural and experimental populations.

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Understanding the Evolution of Insect Life-Cycles: The Role of Genetic Analysis

Roff¹

1990

Insect Life Cycles

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Studies on Natural Populations of Drosophila. Iv. Genetic Variances of and Correlations Between Four Characters in D. Melanogaster and D. Simulans

Cited by 44 publications

References 1 publication

Harm to females increases with male body size inDrosophila melanogaster

Harm to females increases with male body size inDrosophila melanogaster

Cellular basis and developmental timing in a size cline of Drosophila melanogaster.

Understanding the Evolution of Insect Life-Cycles: The Role of Genetic Analysis

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