Genetic variability in mating activity ofDrosophila melanogaster males

Kosuda, Kazuhiko

doi:10.1007/bf01960652

Cited by 10 publications

(13 citation statements)

References 5 publications

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“…In two of these studies, the genotypes screened were either morphological mutants (Prout, 1971) or karyotypes (Anderson et al, 1979), which in both cases were known to be associated with major fitness effects, making a direct comparison with our populations difficult. In the other four studies, lines rendered homozygous for entire chromosomes were shown to undergo inbreeding depression for various measures of male mating success (Brittnacher, 1981 ;Kosuda, 1983 ;Miller & Hedrick, 1993 ;Hughes, 1995). In most of these studies it is not clear whether larval density of populations and experimental flies was deliberately controlled at moderate levels or not, once again making a direct comparison with our results difficult.…”

Section: Discussionmentioning

confidence: 78%

“…Male reproductive fitness in Drosophila has also been seen to have substantial genetic variation compared to several other components of fitness (Prout, 1971 ;Anderson et al, 1979 ;Brittnacher, 1981 ;Kosuda, 1983 ;Miller & Hedrick, 1993 ;Hughes, 1995). In two of these studies, the genotypes screened were either morphological mutants (Prout, 1971) or karyotypes (Anderson et al, 1979), which in both cases were known to be associated with major fitness effects, making a direct comparison with our populations difficult.…”

Section: Discussionmentioning

confidence: 99%

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Poisson distribution of male mating success in laboratory populations of Drosophila melanogaster

1999

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SummaryVariation among males and females in reproductive success is a major determinant of effective population size. Most studies of male mating success in Drosophila, however, have been done under conditions very different from those in typical cultures. We determined the distribution of male mating success in five laboratory populations of D. melanogaster maintained on a 14 d, discrete generation cycle fairly representative of standard Drosophila cultures. Mating success was measured as the number of matings a male could achieve under conditions closely approximating a regular culture vial of these populations. Preliminary studies determined that most mating in these populations occurred within 14 h of the flies attaining sexual maturity. Consequently, individual virgin males were marked with white paint on their thorax, put into vials with varying numbers of unmarked virgin flies of both sexes, and monitored continuously for matings over a period of up to 14 h. At various times during the assay, virgin males and females were added to these vials in proportions simulating the pattern of eclosion in culture vials. The observed variation in the number of matings per male in the five populations was, by and large, consistent with a Poisson distribution, suggesting that male mating success in short-generation-time, discrete-generation laboratory cultures of D. melanogaster may fulfil a fundamental assumption of the Wright-Fisher model of genetic drift in finite populations.

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Poisson distribution of male mating success in laboratory populations of Drosophila melanogaster

1999

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“…In fact, however, a body of evidences has accumulated that male mating activity has much greater effects on total fitness than viability (Anderson 1969;Sved and Ayala 1970;Prout 1971;Bundgarrd and Christiansen 1972;Marinkovic and Ayala 1975a, b;Petit et al 1980;Brittnacher 1981;Sharp 1982;Kosuda 1983). Seager et al (1982) found a conspicuously strong negative epistasis for total fitness in cage population under a highly competitive condition (k=0.352 ± 0.210).…”

Section: Discussionmentioning

confidence: 99%

“…It has become apparent that the male reproductive component of fitness may play a more important role than fitness variables in preadult stages and female fertility , in estimating the net fitness differentials in Drosophila (Anderson 1969;Sved and Ayala 1970;Bundgaard and Christiansen 1972;Marinkovic and Ayala 1975a, b;Petit et a1.1980;Brittnacher 1981;Sharp 1984;Kosuda 1983). However, no studies have been conducted on the interchromosomal esistatic interaction for mating activity in a chromosomally homozygous condition.…”

Section: Introductionmentioning

confidence: 99%

Effects of chromosomal interaction on male mating activity in Drosophila melanogaster.

Kosuda

1985

The Japanese journal of genetics

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The epistatic interaction between the second and third chromosomes of D. melanogaster was quantified in male mating activity under no competition among males. The mean mating activity of the two-chromosome homozygote was 0.517±0.064.The expected value under a multiplicative model was 0.509±0.054. Coefficient of interaction, i, was calculated to be 0.008±0.129. k statistic, a new measure of epistasis devised by Seager and Ayala (1982), was 0.029±0.027, which is not significantly different from zero. It is concluded that there is no interchromosomal interaction between two major autosomes in male mating activity.

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“…Further approaches should be made for other components of fitness, as Prout (1965) showed that the estimation of net fitness is best done by splitting it into various components. Furthermore, evidence has accumulated that the male reproductive component of fitness has a much greater effect on total fitness than egg-to-adult viability and female fertility in estimating selective differences (Anderson, 1969;Petit et a!., 1980;Brittnacher, 1981;Kosuda, 1983;Sharp, 1984).…”

Section: Introductionmentioning

confidence: 99%

A further study of interchromosomal epistatic interaction in male mating activity of Drosophila melanogaster

Kosuda

1993

Heredity

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The interchromosomal epistatic interaction between second and third chromosomes was investigated for male mating activity of Drosophila melanogaster. The observed mating activity of double chromosome homozygotes is 0.526 0.044, whereas the expected one under the multiplicative model is calculated to be 0.511 0.038. These two male mating activities are in excellent agreement, indicating no interchromosomal epistasis. The coefficient of interaction, i, is quantified as -0.174 0.168. The magnitude of the k statistic, another index of epistasis, is 0.000 1 0.0267. Neither index of epistasis differs statistically from zero. The result also shows that there is little or no epistatic interaction between two major chromosomes. However, one interchromosomal synthetic sterility was found in 26 chromosome lines. These results are combined with those of Kosuda (1985) and the generality of epistatic interaction is discussed.

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Genetic variability in mating activity ofDrosophila melanogaster males

Cited by 10 publications

References 5 publications

Poisson distribution of male mating success in laboratory populations of Drosophila melanogaster

Poisson distribution of male mating success in laboratory populations of Drosophila melanogaster

Effects of chromosomal interaction on male mating activity in Drosophila melanogaster.

A further study of interchromosomal epistatic interaction in male mating activity of Drosophila melanogaster

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