2022
A new lineage of Galapagos giant tortoises identified from museum samples
Jensen E, Quinzin M, Miller J, Russello M, Garrick R, Edwards D, Glaberman S, Chiari Y, Poulakakis N, Tapia W, Gibbs J, Caccone A. A new lineage of Galapagos giant tortoises identified from museum samples. Heredity 2022, 128: 261-270. PMID: 35217806, PMCID: PMC8987048, DOI: 10.1038/s41437-022-00510-8.Peer-Reviewed Original ResearchConceptsGalapagos giant tortoisesMitochondrial control regionGiant tortoisesSingle nucleotide polymorphismsControl regionMuseum samplesGenome-wide single nucleotide polymorphismsDivergent mitochondrial lineagesSingle mitochondrial haplotypeContemporary populationsIconic radiationMitochondrial lineagesAdditional lineagesMitochondrial haplotypesNuclear markersSan CristóbalSecond lineageMicrosatellite lociNew lineagePinta IslandSame cladeEvolutionary processesLineagesGalapagos ArchipelagoEarly evolution
2015
Naturally rare versus newly rare: demographic inferences on two timescales inform conservation of Galápagos giant tortoises
Garrick R, Kajdacsi B, Russello M, Benavides E, Hyseni C, Gibbs J, Tapia W, Caccone A. Naturally rare versus newly rare: demographic inferences on two timescales inform conservation of Galápagos giant tortoises. Ecology And Evolution 2015, 5: 676-694. PMID: 25691990, PMCID: PMC4328771, DOI: 10.1002/ece3.1388.Peer-Reviewed Original ResearchGalápagos giant tortoisesDeep timescalesDemographic historyGiant tortoisesLocal effective population sizeLong-term population historyPopulation sizeMitochondrial control regionEffective population sizeAnalysis of genotypicLevel of variationShallow timescalesNuclear intronsRecent bottleneckGenetic bottleneckCensus sizeNeutral markersPhylogenetic informationIsland ageMicrosatellite lociDemographic inferenceGenetic estimatesControl regionPopulation historyConservation perspective
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 clusters
2005
Development of primers to characterize the mitochondrial control region of Galápagos land and marine iguanas (Conolophus and Amblyrhynchus)
HANLEY T, CACCONE A. Development of primers to characterize the mitochondrial control region of Galápagos land and marine iguanas (Conolophus and Amblyrhynchus). Molecular Ecology Resources 2005, 5: 599-601. DOI: 10.1111/j.1471-8286.2005.01004.x.Peer-Reviewed Original Research
2003
Are the native giant tortoises from the Seychelles really extinct? A genetic perspective based on mtDNA and microsatellite data
Palkovacs E, Marschner M, Ciofi C, Gerlach J, Caccone A. Are the native giant tortoises from the Seychelles really extinct? A genetic perspective based on mtDNA and microsatellite data. Molecular Ecology 2003, 12: 1403-1413. PMID: 12755870, DOI: 10.1046/j.1365-294x.2003.01834.x.Peer-Reviewed Original ResearchConceptsGiant tortoisesGenetic structuringGiant tortoise speciesMitochondrial DNA sequencesMitochondrial control regionWestern Indian OceanLevel of variationNuclear microsatellitesRediscovered speciesSeychelles archipelagoMicrosatellite dataReproductive isolationRecent morphological studiesTortoise speciesMicrosatellite lociControl regionSingle lineageMorphological charactersDNA sequencesCarapace morphologyCaptive conditionsTortoisesGenetic perspectiveSpeciesPotential survival