Does reproductive mode affect sexually-selected coloration?Evaluating UV-blue spots in parthenogenetic and bisexual lizards of the genus Darevskia  

作　　者：Andran ABRAMJAN Marine ARAKELYAN Daniel FRYNTA 

机构地区：[1]Department of Zoology,Faculty of Science,Charles University,Vinicná7,Prague,12843,Czech Republic [2]Depatment of Zoology,Faculty of Biology,Yerevan State University,Alek Manoogian 1,Yerevan,0025,Armenia

出　　处：《Current Zoology》2021年第2期201-213,共13页动物学报（英文版）

摘　　要：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.

关 键 词：clonal reproduction COLORATION reptiles sexual selection visual modeling 

分 类 号：Q95[生物学—动物学]