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1篇 您的检索式:作者名="Andran ABRAMJAN"
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1Does reproductive mode affect sexually-selected coloration?Evaluating UV-blue spots in parthenogenetic and bisexual lizards of the genus Darevskia显示文摘Sexual selection often leads to evolution of conspicuous signals,raising the chances of attracting not only potential mates,but also predators.In lacertid lizards,ultraviolet(UV)-blue spots on flanks and shoulders represent such a trait.Some level of correlation between male and female ornamen-tation is also known to exist.Therefore,the phenotype of females may change in the absence of sexual selection.We tested this hypothesis on a complex of parthenogenetic and bisexual lizards of the genus Darevskia.We evaluated area,counts,and chromatic properties(UV opponency,sat-uration)of UV-blue spots and compared the values between the clones and their bisexual progeni-tor species.We found a fair heterogeneity between the parthenogenetic species,but no general tendency toward higher crypsis or conspicuousness.Values of the parthenogens were not signifi-cantly different from the values of sexual females.A possible explanation is that the changes in se-lective forces associated with parthenogenetic reproduction are too small to affect the resulting pattern of selective pressures on the studied traits,or that the phenotypes of the parthenogens re-sult from the unique combination of parental genomes and are conserved by clonal reproduction.Andran ABRAMJAN Marine ARAKELYAN Daniel FRYNTA 2021Current Zoology2021,67,2:0
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