2010
DNA from the Past Informs Ex Situ Conservation for the Future: An “Extinct” Species of Galápagos Tortoise Identified in Captivity
Russello MA, Poulakakis N, Gibbs JP, Tapia W, Benavides E, Powell JR, Caccone A. DNA from the Past Informs Ex Situ Conservation for the Future: An “Extinct” Species of Galápagos Tortoise Identified in Captivity. PLOS ONE 2010, 5: e8683. PMID: 20084268, PMCID: PMC2800188, DOI: 10.1371/journal.pone.0008683.Peer-Reviewed Original ResearchConceptsExtinct speciesCaptive individualsGenotypic dataExtant speciesGalápagos tortoisesNative rangeTortoise speciesMitochondrial DNA control region haplotypesHistorical DNA analysisMicrosatellite genotypic dataControl region haplotypesMitochondrial DNA haplotypesEx situ conservationSpecies recovery effortsConservation-related researchIslands of IsabelaCryptic diversityBayesian assignmentDNA haplotypesSitu conservationFloreana IslandConservation statusBreeding effortsMicrosatellite genotypesMuseum specimens
2006
Phylogeographic History and Gene Flow Among Giant Galápagos Tortoises on Southern Isabela Island
Ciofi C, Wilson GA, Beheregaray LB, Marquez C, Gibbs JP, Tapia W, Snell HL, Caccone A, Powell JR. Phylogeographic History and Gene Flow Among Giant Galápagos Tortoises on Southern Isabela Island. Genetics 2006, 172: 1727-1744. PMID: 16387883, PMCID: PMC1456292, DOI: 10.1534/genetics.105.047860.Peer-Reviewed Original ResearchConceptsDispersal eventsMitochondrial DNA control region sequencesGalápagos giant tortoisesLimited dispersal abilityRecent dispersal eventsControl region sequencesGiant Galápagos tortoisesMultilocus genotyping methodsLand bridge formationMovement of organismsEffects of vicarianceRapid population declineIslands of IsabelaLineage sortingClade analysisPhylogeographic historyGene flowDispersal abilityGenetic divergenceGalápagos tortoisesMicrosatellite lociPhylogeographic inferenceSouthern Isabela IslandTaxonomic distinctionGiant tortoises
2002
Microsatellite analysis of genetic divergence among populations of giant Galápagos tortoises
Ciofi C, Milinkovitch M, Gibbs J, Caccone A, Powell J. Microsatellite analysis of genetic divergence among populations of giant Galápagos tortoises. Molecular Ecology 2002, 11: 2265-2283. PMID: 12406238, DOI: 10.1046/j.1365-294x.2002.01617.x.Peer-Reviewed Original ResearchConceptsGiant Galápagos tortoisesGenetic divergenceGalápagos tortoisesIsland populationsVolcan WolfIndividual island populationsIslands of IsabelaGene flowAdaptive differentiationGenetic structureMtDNA diversityExtant populationsColonization eventsEvolutionary historyMicrosatellite lociDifferent taxaAllelic similarityHeavy exploitationDNA workMicrosatellite analysisDeterministic threatsDistinct populationsTortoisesInteresting modelDivergence