Sexual and reproductive behaviour of<i>Drosophila melanogaster</i>from a microclimatically interslope differentiated population of ‘Evolution Canyon’ (Mount Carmel, Israel)

Iliadi, Konstantin G.; Iliadi, Natalia; Rashkovetsky, Eugenia; Minkov, Irina; Nevo, Eviatar; Korol, Abraham B.

doi:10.1098/rspb.2001.1822

Cited by 38 publications

(71 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results correspond to the previous findings (22,39) on D. melanogaster and allow further generalization that differential microclimatic selection can promote evolutionary changes fostering partial premating isolation. Anatomy of sexual behavior and courtship song patterns.…”

Section: Resultssupporting

confidence: 78%

“…Such plasticity is especially important in light of the view that IPI is a species-specific trait displaying low phenotypic and additive genetic variability (47). The results on the male's courtship song parameters characterizing the intensity of stimulation correspond to previous behavioral findings (39), in which SFS males displayed a higher mating propensity. Differences in courtship song features might be associated with females' discrimination behavior.…”

Section: Resultssupporting

confidence: 77%

“…The most exciting findings on EC flies come from sexual behavior experiments indicating that the EC population cannot be considered panmictic. These findings include positive assortative mating (22,43), interslope differences in mating propensity, sexual discrimination and reproductive behavior (39), and slope specificity in the courtship song pattern (K.I., unpublished data). Some discrepant and controversial data on nonrandom mating in EC flies were also obtained (see below) inspiring further investigations.…”

Section: Resultsmentioning

confidence: 99%

“…The prolongation of the developmental period and its inter-individual variation may display an adaptive strategy, reducing the chance that the entire progeny of a female will be eliminated due to a sudden severe stress at a critical period of development. This trait complex (increased fecundity, thermotolerance, prolongated pupation, and a higher between-individual variation in the time of development of SFS flies) suggests a more secure survival of flies inhabiting the more climatically variable and stressful SFS (38,39). Interslope migration.…”

Section: Resultsmentioning

confidence: 99%

“…Some peculiarities in the procedure that could affect the results should be noted. In our tests (22,39,43,45), flies were observed until Ϸ50-60% of the maximal number of couples were formed to avoid a nonchoice situation, unlike the protocol of T. Panhuis et al (44) where mating pairs were aspirated until a maximum of 50 pairs were collected (more than 78% of the maximal couples number), or 1 hr had passed from the beginning of test. Recent experiments for premating isolation in flies from EC, conducted in two laboratories (Simon Fraser University, Burnaby, Canada, and University of Haifa, Haifa, Israel), under a variety of protocols, detected significant assortative mating in three of six single choice tests in Burnaby, suggesting that the populations are behaviorally differentiated in some manner (45).…”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

Drosophila flies in “Evolution Canyon” as a model for incipient sympatric speciation

Korol

Rashkovetsky

Iliadi

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

View full text Add to dashboard Cite

The genetic basis of population divergence leading to adaptive radiation and speciation is a major unresolved problem of evolutionary biology. Molecular elucidation of ''speciation genes'' advanced recently, yet it remains without clear identification of the gene complexes participating in reproductive isolation between natural populations, particularly, in sympatry. Genetic divergence was discovered between Drosophila melanogaster populations inhabiting ecologically contrasting, opposite slopes in ''Evolution Canyon'' (EC), Mt. Carmel, Israel. Interslope migration of flies is easy and verified. Nevertheless, significant interslope D. melanogaster population divergence was established at EC involving habitat choice, mate choice, thermal and drought tolerances, adaptive genes, and mobile elements. Parallel patterns of stress tolerance, habitat choice, and mate choice were demonstrated in Drosophila simulans at EC, although on a smaller scale. However, some tests for interslope genetic differentiation in Drosophila, derived from the opposite EC slopes, gave somewhat controversial results. Here we present new empirical data on interslope genetic divergence of Drosophila at EC, and summarize previous supporting and controversial results. We suggest that Drosophila populations at EC represent a rare example, demonstrating how selection overrides migration, and propose an ad hoc ecological model of incipient sympatric divergence.genetic divergence ͉ incipient differentiation ͉ natural populations ͉ sympatric evolution

show abstract

Section: Resultssupporting

confidence: 78%

Section: Resultssupporting

confidence: 77%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Drosophila flies in “Evolution Canyon” as a model for incipient sympatric speciation

Korol

Rashkovetsky

Iliadi

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

View full text Add to dashboard Cite

show abstract

Conserved ecophysiology despite disparate microclimatic conditions in a gecko

et al. 2021

View full text Add to dashboard Cite

Microscale differences in the habitats organisms occupy can influence selection regimes and promote intraspecific variation of traits. Temperature-dependent traits can be locally adapted to climatic conditions or be highly conserved and insensitive to directional selection under all but the most extreme regimes, and thus be similar across populations. The opposing slopes of Nahal Oren canyon in the Carmel Mountains, Israel, are strikingly different: the south-facing slope receives intensive solar radiation, is hot and supports mostly annual vegetation, whereas the northfacing slope is ~10°C cooler, more humid, and supports Mediterranean woodland.We examined whether these differences manifest in the thermal physiology of a common gecko species Ptyodactylus guttatus in controlled laboratory conditions. We predicted that geckos from the hotter south-facing slope would prefer higher temperatures, have faster gut passage times, lower metabolic and evaporative water loss rates, and start diel activity earlier compared with north-facing slope conspecifics. Contrary to these predictions, there were no differences between any of the ecophysiological traits in geckos from the opposing slopes. Nevertheless, our data showed that individuals from the north-facing slope were generally more active in earlier hours of the afternoon compared with south-facing individuals. We suggest that P. guttatus individuals disperse between the slopes and either gene-flow or behavioral plasticity deter local adaptation, resulting in similar physiological traits.Perhaps a stronger contrast in climatic conditions and a stronger barrier are needed to result in interpopulation divergence in temperature-dependent traits.

show abstract

Evolutionary Biology: Biodiversification from Genotype to Phenotype

Pontarotti¹

2015

View full text Add to dashboard Cite

Sexual and reproductive behaviour ofDrosophila melanogasterfrom a microclimatically interslope differentiated population of ‘Evolution Canyon’ (Mount Carmel, Israel)

Cited by 38 publications

References 50 publications

Drosophila flies in “Evolution Canyon” as a model for incipient sympatric speciation

Drosophila flies in “Evolution Canyon” as a model for incipient sympatric speciation

Conserved ecophysiology despite disparate microclimatic conditions in a gecko

Evolutionary Biology: Biodiversification from Genotype to Phenotype

Contact Info

Product

Resources

About