Selection for mating success of yellow mutant Drosophila melanogaster: biometrical genetic analysis

Dow, Maurice A.

doi:10.1038/hdy.1977.21

Cited by 6 publications

(9 citation statements)

References 11 publications

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“…The results with M2 males are different, since in this diallel dominance is basically for high receptivity, in clear contrast with the dominance for low receptivity observed by Dow (1977).…”

Section: Discussioncontrasting

confidence: 77%

“…When these selected lines were subjected to a Cavalli biometrical analysis (Dow, 1977), the genetic model for receptivitiy in an observation period of 1 h contained additive, dominance and maternal components in one selected line, and additive and dominant sex-linked components in the other line. In both lines, dominance was for low receptivity.…”

Section: Introductionmentioning

confidence: 99%

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Genetic basis for female receptivity in Drosophila melanogaster: a diallel study

et al. 1992

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Receptivity of sexually mature, virgin females, measured as the time to copulation, has been investigated. Two independent 5 x 5 diallel crosses were carried out, each one with a different male tester genotype. Interactions between male and female genotypes were detected because some lines appeared as dominant in one diallel and recessive in the other. The overall picture emerging from the analyses shows a genetic system for female receptivity characterized by additive genes, with dominance for high receptivity in one of the diallel crosses. This remarkable additive component does not support the action of natural selection favouring females with extreme values of receptivity, rather, the lack of intrasexual female competition for mates is suggested.

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Section: Discussioncontrasting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Genetic basis for female receptivity in Drosophila melanogaster: a diallel study

et al. 1992

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“…We have shown here that the answer lies in the mating propensity of the flies used. It is well recognized that mating propensity varies among populations of Drosophila, and there is also a large intrapopulational variation for this trait (Manning 1961;Kessler 1969;Manning and Hirsch 1971;Dow 1977;Singh and Chatterjee 1988;Carracedo et al 1991;Casares et al 1992Casares et al , 1993.…”

Section: Discussionmentioning

confidence: 99%

“…At least 70 vials were observed for each population. The raw data, in seconds, were log-transformed to obtain a normal distribution (Dow 1976). Because not all flies mated during the observation period, we followed a procedure outlined by Manning (1961) that permits the extrapolation of mean and variance of truncated data (the observed matings only).…”

Section: Mating Propensitymentioning

confidence: 99%

DISENTANGLING THE EFFECTS OF MATING PROPENSITY AND MATING CHOICE INDROSOPHILA

et al. 1998

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Abstract.-Incipient sexual isolation between genotypes, lines, or populations of the same species is commonly measured in Drosophila by choice tests. Results of these tests are known to be influenced, in an undetermined manner, by the mating propensity of competitors and by discriminatory factors during courtship. We have approached the problem by measuring male and female propensities in separate, independent tests, and by examining whether these estimates could explain the results of the choice tests. First, male and female choice tests were used to measure sexual isolation between populations of Drosophila melanogaster and between populations of D. simulans. Significant deviations from random mating occurred in 31 out of 48 tests, in agreement with the propensity values of the tested genotypes. We conclude that mating propensity instead of discrimination is directly involved in the estimation of sexual isolation in our populations, and advise against the application of male and female choice tests to assess intraspecific isolation without a proper knowledge of the mating propensities of competing individuals. Second, multiple choice tests were used to assess isolation between D. melanogaster populations. In examining the dynamics of matings throughout the test, we show that if competing individuals differ in mating propensities and tests are long enough to allow most matings to happen, a spurious sexual isolation can appear. We recommend that multiple choice tests be terminated once 50 percent of matings had been observed.Key words.-Drosophila, mating choice tests, mating propensity, sexual isolation.Received March 10, 1997.The role of sexual isolation in species formation is one of the most interesting questions in evolutionary biology. Sexual isolation is a form of reproductive isolation arising from behavioral differences between potential mates. The elaborate courtship of most Drosophila species provides good material for the study of sexual behavior. Since Sturtevant's (1915) pioneering work, students of Drosophila have tried to understand how mating differences and sexual selection could lead to speciation.At the intraspecific level, incipient sexual isolation can be seen as a tendency to mate homogamically rather than heterogamically. The underlying divergence in mating behavior between two conspecific strains can be studied in different ways. Unfortunately, a direct analysis of behavioral differences is laborious, time-consuming, and requires a lot of practice and experience (Spiess 1970;Burnet and Connolly 1981;Cobb et al. 1985Cobb et al. , 1986. As a result, the most commonly used designs for measuring sexual isolation in Drosophila are the male choice, female choice, and multiple choice tests (see Parsons 1973), which measure the frequencies of intra-and interstrain matings. The male choice test consists on introducing a male from one strain with a female from his own strain and a female from another strain, in a mating chamber, and recording the types of mating that occur. In the female choice tes...

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“…Their results revealed a genetic architecture of additive genetic variation and directional dominance for fast mating speed. Dow (1977) performed a Cavalli cross for two lines of D. melanogaster that had been selected for wild-type female receptivity and for high mating success of yellow (y) mutant males. The results showed that for male mating success a simple additive-dominance model adequately described the data, dominance being for higher mating success.…”

Section: Introductionmentioning

confidence: 99%

The genetic architecture of the male courtship sequence in Drosophila melanogaster

Collins

Hewitt

1984

Heredity

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SUMMAIYBiometrical genetic analysis of the elements of the male courtship sequence in D. melanogaster using diallel and Cavalli cross-breeding designs, revealed that the genetic architecture of the overall level of courtship was characterised by low additivity, sex-linkage and directional dominance for higher levels of courtship. Similar genetic architectures were found for the latter elements of the courtship sequence, with directional dominance for increased amounts of wing vibration, licking, attempted copulation and copulation itself. There was no evidence of sex-linkage for these characters but there was also evidence of some i-type epistatic variation for the wing vibration component of the courtship sequence. The first element of the courtship sequence, orientation, showed a different pattern of inheritance, with again low additive genetic variation but directional dominance for low levels of orientation. These fitness type genetic architectures suggest that the individual elements of the courtship sequence have had a recent history of directional selection favouring a shorter phase of orientation and higher expression of the other courtship elements. This may imply that, though orientation will occur in the initial stages of the courtship process, selection favours males that proceed to the later, more important elements of the courtship sequence fastest.

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Selection for mating success of yellow mutant Drosophila melanogaster: biometrical genetic analysis

Cited by 6 publications

References 11 publications

Genetic basis for female receptivity in Drosophila melanogaster: a diallel study

Genetic basis for female receptivity in Drosophila melanogaster: a diallel study

DISENTANGLING THE EFFECTS OF MATING PROPENSITY AND MATING CHOICE INDROSOPHILA

The genetic architecture of the male courtship sequence in Drosophila melanogaster

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