2016
Ecological and evolutionary influences on body size and shape in the Galápagos marine iguana (Amblyrhynchus cristatus)
Chiari Y, Glaberman S, Tarroso P, Caccone A, Claude J. Ecological and evolutionary influences on body size and shape in the Galápagos marine iguana (Amblyrhynchus cristatus). Oecologia 2016, 181: 885-894. PMID: 27041683, DOI: 10.1007/s00442-016-3618-1.Peer-Reviewed Original ResearchConceptsGalápagos marine iguanasMarine iguanasEvolutionary historyBody sizeGenetic adaptationBody size variationSexual dimorphismHigh morphological diversityStrong sexual dimorphismContribution of plasticityShape variationPhylogeographic patternsMultiple colonizationsEndemic speciesLocal adaptationEvolutionary changeMorphological diversityEvolutionary influencesDistribution rangeOceanic islandsSource populationIguanasEnvironmental conditionsSize variationMorphological measurements
2015
Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana
MacLeod A, Rodríguez A, Vences M, Orozco-terWengel P, García C, Trillmich F, Gentile G, Caccone A, Quezada G, Steinfartz S. Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana. Proceedings Of The Royal Society B 2015, 282: 20150425. PMID: 26041359, PMCID: PMC4590447, DOI: 10.1098/rspb.2015.0425.Peer-Reviewed Original ResearchConceptsGalápagos marine iguanasEvolutionary historyMarine iguanasIncipient speciationStrong population structureGenome-wide analysisGalápagos land iguanasCommon gene poolDepth genome-wide analysisSpeciation eventsIsland speciationSister lineageEvolutionary potentialFrequent hybridizationExtant populationsLocal adaptationPhylogenetic treeGene poolSister groupPopulation structureVariable markersLand iguanasEvolutionary processesSame islandNearby islands
2010
Genetic Differentiation between Marine Iguanas from Different Breeding Sites on the Island of Santa Fé (Galápagos Archipelago)
Lanterbecq D, Glaberman S, Vitousek M, Steinfartz S, Benavides E, Wikelski M, Caccone A. Genetic Differentiation between Marine Iguanas from Different Breeding Sites on the Island of Santa Fé (Galápagos Archipelago). Journal Of Heredity 2010, 101: 663-675. PMID: 20538757, DOI: 10.1093/jhered/esq067.Peer-Reviewed Original ResearchConceptsMarine iguanasGenetic diversitySex-biased dispersalMitochondrial control regionMitochondrial DNA markersGalápagos marine iguanasSanta FéDifferent breeding sitesSouthern sitesGenetic differentiationEvolutionary signalGenetic structureMicrosatellite lociDNA markersControl regionGenetic variationGenetic patternsBreeding sitesLittle differentiationBase pairsNeighboring islandsIguanasDiversitySampling sitesDifferentiation
2009
Progressive colonization and restricted gene flow shape island-dependent population structure in Galápagos marine iguanas (Amblyrhynchus cristatus)
Steinfartz S, Glaberman S, Lanterbecq D, Russello M, Rosa S, Hanley T, Marquez C, Snell H, Snell H, Gentile G, Dell'Olmo G, Powell A, Caccone A. Progressive colonization and restricted gene flow shape island-dependent population structure in Galápagos marine iguanas (Amblyrhynchus cristatus). BMC Ecology And Evolution 2009, 9: 297. PMID: 20028547, PMCID: PMC2807874, DOI: 10.1186/1471-2148-9-297.Peer-Reviewed Original ResearchConceptsComplete mitochondrial control regionMarine iguanasGene flowPopulation structureMarine iguana populationsHistorical gene flowNuclear gene flowMicrosatellite genetic diversityStrong genetic differentiationMale-biased dispersalMitochondrial control regionRecent population expansionBayesian cluster analysisGalápagos marine iguanasHaplotype distribution patternsDistinct genetic clustersPast genetic studiesGenetic differentiationWestern islandsFST estimatesIguana populationsFounder eventsFST analysisDifferent inheritance patternsGenetic clustersCharacterization and evolution of MHC class II B genes in Galápagos marine iguanas (Amblyrhynchus cristatus)
Glaberman S, Moreno M, Caccone A. Characterization and evolution of MHC class II B genes in Galápagos marine iguanas (Amblyrhynchus cristatus). Developmental & Comparative Immunology 2009, 33: 939-947. PMID: 19454336, DOI: 10.1016/j.dci.2009.03.003.Peer-Reviewed Original ResearchConceptsClass II B genesGalápagos marine iguanasB geneMarine iguanasMHC class II B genesAvian MHC evolutionInterlocus gene conversionAncestral locusEvolutionary forcesMHC evolutionBird speciesGene conversionGene groupsPositive selectionCDNA sequenceClass II genesLocus groupsVertebratesGenesMammalsShort tractsBeta 2 domainAdaptive immune systemMajor groupsSquamates
2008
Characterization of a Nonclassical Class I MHC Gene in a Reptile, the Galápagos Marine Iguana (Amblyrhynchus cristatus)
Glaberman S, Du Pasquier L, Caccone A. Characterization of a Nonclassical Class I MHC Gene in a Reptile, the Galápagos Marine Iguana (Amblyrhynchus cristatus). PLOS ONE 2008, 3: e2859. PMID: 18682845, PMCID: PMC2483932, DOI: 10.1371/journal.pone.0002859.Peer-Reviewed Original ResearchConceptsGalápagos marine iguanasClass I MHC genesMHC genesMarine iguanasLarge taxonomic gapsClassical class I genesGenomic sequence dataClassical MHC genesMajor histocompatibility complex (MHC) genesPeptide-binding residuesClass I genesMHC evolutionNonclassical genesVertebrate taxaDiverse orderClass I sequencesMHC organizationCytoplasmic domainPhylogenetic analysisGenomic sequencesTaxonomic gapsConserved characterI geneSequence dataI sequencesSpecies-specific evolution of class I MHC genes in iguanas (Order: Squamata; Subfamily: Iguaninae)
Glaberman S, Caccone A. Species-specific evolution of class I MHC genes in iguanas (Order: Squamata; Subfamily: Iguaninae). Immunogenetics 2008, 60: 371-382. PMID: 18488213, DOI: 10.1007/s00251-008-0298-y.Peer-Reviewed Original ResearchConceptsMarine iguanasSpecies-specific evolutionGalápagos land iguanasGalápagos marine iguanasDifferent phylogenetic historiesNon-avian reptilesSpecies-specific mannerClass I MHC genesMajor histocompatibility complexConservation geneticsPhylogenetic historySquamate speciesVertebrate taxaDiversified orderGenetic diversityNatural selectionMHC researchDNA dataGenetic basisLand iguanasMultiple lociMHC genesMHC studiesHost resistanceIguanas
2007
Genetic Impact of a Severe El Niño Event on Galápagos Marine Iguanas (Amblyrhynchus cristatus)
Steinfartz S, Glaberman S, Lanterbecq D, Marquez C, Rassmann K, Caccone A. Genetic Impact of a Severe El Niño Event on Galápagos Marine Iguanas (Amblyrhynchus cristatus). PLOS ONE 2007, 2: e1285. PMID: 18074011, PMCID: PMC2110882, DOI: 10.1371/journal.pone.0001285.Peer-Reviewed Original ResearchConceptsMarine iguana populationsIguana populationsGenetic diversityGenetic impactNeutral genetic diversityMitochondrial DNA diversityEffective population sizeMitochondrial DNA variationGalápagos marine iguanasMicrosatellite allele frequenciesRange of organismsDynamics of ecosystemsMajority of islandsPotential biological consequencesDNA diversityGenetic bottleneckMicrosatellite dataDNA variationMarine iguanasMtDNA variationGenetic compositionSevere El Niño eventBiological consequencesPopulation sizeClimatic disturbances