The stability of the specific-mate recognition system ofDrosophila melanogaster

Lambert, David M.; Henderson, Nicola

doi:10.1007/bf01071318

Cited by 8 publications

(9 citation statements)

References 7 publications

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“…We conclude that ascertaining sexual isolation in Drosophila through the commonly used design of the multiple-choice mating test depends not only on possible genetic differences directly involved in recognition between the examined lines, but also on minor and often uncontrolled variables, such as temperature of rearing, preadult density and inbreeding level. The corollary is that the number of true cases of sexual isolation in Drosophila could be less than found in the literature, which agrees with a great stability of the Drosophila melanogaster mating system (Lambert and Henderson 1986). This assertion is also supported by our review of published data showing a clear bias towards the occurrence of positive sexual isolation at the intraspecific level in both D. melanogaster and D. pseudoobscura.…”

Section: Resultssupporting

confidence: 61%

Is premating isolation inDrosophila overestimated due to uncontrolled factors?

Casares

Piñeiro

Carracedo

2005

J Genet

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Sexual isolation in Drosophila is typically measured by multiple-choice mating tests. While many environmental variables during such tests are controlled by the researcher, there are some factors that are usually uncontrolled. We demonstrate, using Drosophila melanogaster and D. pseudoobscura flies, that the temperature of rearing, preadult density, and level of consanguinity, can all produce differences in mating propensity between genetically equivalent flies. These differences in mating propensity, in turn, can give rise to statistically significant results in multiple-choice mating tests, leading to positive isolation values and the artifactual inference of sexual isolation between populations. This fact agrees with a nonrandom excess of significant positive tests found in a review of the literature of Drosophila intraspecific mating choice. An overestimate of true cases of sexual isolation in Drosophila in the literature can, therefore, not be ruled out.[Casares P., Piñeiro R. and Carracedo M. C. 2005 Is premating isolation in Drosophila overestimated due to uncontrolled factors? J. Genet. 84, [259][260][261][262][263][264]

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Section: Resultssupporting

confidence: 61%

Is premating isolation inDrosophila overestimated due to uncontrolled factors?

Casares

Piñeiro

Carracedo

2005

J Genet

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“…The present study shows undisputedly that this song trait plays an important role in species recognition also in D. montana, while our earlier studies have shown the pulse characters of the song (PL, FRE) to be important in intraspecific sexual selection in this species . The fact that the male song, or different traits of the song, plays a role both in species recognition and in sexual selection may restrict song evolution, as signals important in species-recognition should not vary too much to retain species-specificity (Lambert and Henderson, 1986). On the other hand, directional sexual selection may enhance the evolution of species-recognition signals and strengthen sexual isolation, if the female preferences vary between the species.…”

Section: Discussionmentioning

confidence: 99%

The Role of Male Courtship Song in Species Recognition in Drosophila montana

2005

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In many Drosophila species the male courtship song is an essential part of a successful courtship, playing a role in species-recognition and/or in sexual selection exercised by the females on conspecific males. In Drosophila montana, specific traits of the courtship song (the length and the carrier frequency of sound pulses) have earlier been shown to play an important role in intraspecific mate choice. Here we show that the male song (especially the interpulse interval) also plays a role in species-recognition, maintaining sexual isolation between sympatric species. We succeeded in breaking down sexual isolation between D. montana females and D. lummei males by playing the females simulated courtship song with a species-specific interpulse interval while they were courted by a mute (wingless) male. Involvement of different song traits in intra- and interspecific mate choice suggests that the song may be affected by both directional and stabilizing selection.

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“…Also, random genetic drift (Lande 1976) and adaptation to variable environmental conditions (Hoffmann and Merilä 1999) may give rise to population differentiation in mating signals, but their effects have been less studied than those of sexual selection. Stabilising selection, on the other hand, should lead to evolutionary stability of traits involved in the mate recognition system throughout the distribution of a species (Lambert and Henderson 1986).…”

Section: Introductionmentioning

confidence: 99%

Variation in Male Courtship Song Traits in Drosophila virilis: The Effects of Selection and Drift on Song Divergence at the Intraspecific Level

et al. 2007

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Genetic and phenotypic divergence of Drosophila virilis laboratory strains originating from different parts of the species range were studied with the aid of microsatellite markers and by analysing male courtship songs. The strains from America, Europe, continental Asia and Japan showed moderate geographic clustering both at the genetic level and in several traits of the male song. The genetic distances and the song divergence of the strains did not show significant association, which suggests that the songs have not diverged solely as a side-effect of genetic divergence. Comparison of the songs of the laboratory strains to those of freshly collected strains showed that pulse characters of the song are quite sensitive to culture conditions. While laboratory rearing of the flies had no effect on the number of pulses in a pulse train or the pulse train length, the tendency of the sound pulses to become longer during laboratory maintenance could explain the lack of geographic variation in pulse length and inter pulse interval. Sensitivity of songs to culturing conditions should be taken in account in studies on song divergence.

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The stability of the specific-mate recognition system ofDrosophila melanogaster

Cited by 8 publications

References 7 publications

Is premating isolation inDrosophila overestimated due to uncontrolled factors?

Is premating isolation inDrosophila overestimated due to uncontrolled factors?

The Role of Male Courtship Song in Species Recognition in Drosophila montana

Variation in Male Courtship Song Traits in Drosophila virilis: The Effects of Selection and Drift on Song Divergence at the Intraspecific Level

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