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Epistatic interactions between pterin and carotenoid genes modulate intra-morph color variation in a lizard

integrative Zoology 2022年第1期17卷 44-53页

作者： prem AGUiLAR pedro ANDRAde guillem p.rez i de lanuza CiBiO/inBiO Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do PortoPortoPortugal Ethology Lab Institut Cavanilles de Biodiversitat i Biologia EvolutivaUniversitat de ValènciaValènciaSpain

Color polymorphisms have become a major topic in evolutionary biology and substantial efforts have been devoted to the understanding of the mechanisms responsible for originating such colorful ***-morph continuous variation,on the other hand,has been neglected in most of the ***,we combine spectrophotometric/visual modeling and genetic data to study the mechanisms promoting continuous variation within categorical color morphs of podarcis *** results suggest that intra-morph variability in the pterin-based orange morph is greater compared to white and yellow *** also show that continuous variation within the orange morph is partially discriminable by *** results indicate that allelic variants at the BCO2 locus(responsible for deposition of yellow carotenoids)contribute to generate continuous variation in orange ***,other intrinsic and/or extrinsic mechanisms,such as body size,might be involved,opening a new avenue for future research on the drivers of continuous variation within-morphs.

关键词： BCO2 color polymorphism continuous variation lizard podarcis muralis

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Viability,behavior,and color expression in the offspring of matings between common wall lizard podarcis muralis color morphs

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Current Zoology 2022年第1期68卷 41-55页

作者： Javier ABALOS guillem p.rez i de lanuza Alicia BARTOLOME Fabien AUBRET Tobias ULLER Enrique FONT Ethology Lab Instituto Cavanilles de Biodiversidad y Biologı´a EvolutivaUniversitat de ValenciaValenciaSpain CiBiO/inBiO Centro de Investigacao em Biodiversidade e Recursos Geneticos da Universidade do PortoPortoPortugal SETE Station d’Ecologie Theorique et ExperimentaleUPR2001Centre National de la Recherche ScientifiqueParisFrance department of Biology Lund UniversityLundSweden

Color polymorphisms are widely studied to identify the mechanisms responsible for the origin and maintenance of phenotypic variability in *** of the mechanisms of balancing selection currently thought to explain the long-term persistence of polymorphisms are the evolution of alternative phenotypic optima through correlational selection on suites of traits including color and *** of these mechanisms can generate differences in offspring viability and fitness arising from different morph ***,we examined the effect of parental morph combination on fertilization success,embryonic viability,newborn quality,antipredator,and foraging behavior,as well as inter-annual survival by conducting controlled matings in a polymorphic lacertid podarcis muralis,where color morphs are frequently assumed to reflect alternative phenotypic optima(e.g.,alternative reproductive strategies).Juveniles were kept in outdoor tubs for a year in order to study inter-annual growth,survival,and morph *** agreement with a previous genome-wide association analysis,morph frequencies in the year-old juveniles matched the frequencies expected if orange and yellow expressions depended on recessive homozygosity at 2 separate *** findings also agree with previous literature reporting higher reproductive output of heavy females and the higher overall viability of heavy newborn lizards,but we found no evidence for the existence of alternative breeding investment strategies in female morphs,or morphcombination effects on offspring viability and *** conclude that inter-morph breeding remains entirely viable and genetic incompatibilities are of little significance for the maintenance of discrete color morphs in *** from the pyrenees.

关键词： alternative breeding strategies color polymorphism controlled matings lizard behavior morph ontogeny newborn viability

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