Sympatric Differentiation and Speciation: Insights from Drosophila Studies

Rashkovetsky, Eugenia; Frenkel, Zeev; Michalak, Pawel; Korol, Abraham B.

doi:10.1007/978-3-319-19932-0_7

Evolutionary Biology: Biodiversification From Genotype to Phenotype 2015

DOI: 10.1007/978-3-319-19932-0_7

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Sympatric Differentiation and Speciation: Insights from Drosophila Studies

Eugenia Rashkovetsky

Zeev Frenkel

Pawel Michalak

et al.

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2019

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Aggression and courtship differences found in Drosophila melanogaster from two different microclimates at Evolution Canyon, Israel

Palavicino‐Maggio¹,

Trannoy²,

Holton³

et al. 2019

Sci Rep

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Aggression and courtship behavior were examined of wild Drosophila melanogaster flies isolated from two contrasting microclimates found at Evolution Canyon in Mt. Carmel, Israel: an African-like dry tropical Slope (AS) and a European-like humid temperate Slope (ES), separated by 250 meters. Studies were carried out to ask whether behavioral differences existed between the two populations obtained from opposite slopes with divergent microclimates in Israel. First, we measured and compared intraslope aggression between same sex fly pairings collected from the same slope. Both male and female flies displayed similar fighting abilities from both slopes. ES males, however, from the humid biome, showed a tendency to lunge more per aggressive encounter, compared with AS males from the dry biome. Next, we tested interslope aggression by pairing flies from opposite slopes. ES males displayed higher numbers of lunges, and won more fights against their AS opponents. We also observed enhanced courtship performances in ES compared to AS males. The fighting and courtship superiority seen in ES males could reinforce fitness and pre-mating reproductive isolation mechanisms that underlie incipient sympatric speciation. This may support an evolutionary advantage of adaptively divergent fruit fly aggression phenotypes from different environments.

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Aggression and courtship differences found in Drosophila melanogaster from two different microclimates at Evolution Canyon, Israel

Palavicino‐Maggio¹,

Trannoy²,

Holton³

et al. 2019

Sci Rep

View full text Add to dashboard Cite

show abstract

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Sympatric Differentiation and Speciation: Insights from Drosophila Studies

Cited by 1 publication

References 166 publications

Aggression and courtship differences found in Drosophila melanogaster from two different microclimates at Evolution Canyon, Israel

Aggression and courtship differences found in Drosophila melanogaster from two different microclimates at Evolution Canyon, Israel

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