2003
Genetic divergence, phylogeography and conservation units of giant tortoises from Santa Cruz and Pinzón, Galápagos Islands
Beheregaray L, Ciofi C, Caccone A, Gibbs J, Powell J. Genetic divergence, phylogeography and conservation units of giant tortoises from Santa Cruz and Pinzón, Galápagos Islands. Conservation Genetics 2003, 4: 31-46. DOI: 10.1023/a:1021864214375.Peer-Reviewed Original ResearchSan CristóbalDeep phylogeographic structureGiant tortoise populationSanta CruzConservation effortsConservation unitsIsland radiationsPhylogeographic structurePopulation colonizationTortoise populationsGenetic structureGalápagos IslandsAdaptive divergenceReproductive isolationGiant tortoisesEnvironmental agenciesGenetic divergenceDemographic historyDescendent populationsMicrosatellite markersGenealogical relationshipsPinzónIslandsCristóbalDivergence
1998
A MOLECULAR PHYLOGENY OF THE DROSOPHILA WILLISTONI GROUP: CONFLICTS BETWEEN SPECIES CONCEPTS?
Gleason J, Griffith E, Powell J. A MOLECULAR PHYLOGENY OF THE DROSOPHILA WILLISTONI GROUP: CONFLICTS BETWEEN SPECIES CONCEPTS? Evolution 1998, 52: 1093-1103. PMID: 28565231, DOI: 10.1111/j.1558-5646.1998.tb01836.x.Peer-Reviewed Original ResearchDrosophila willistoni groupCytochrome oxidase IStrong phylogenetic signalSpecies conceptPhylogenetic signalWillistoni groupMitochondrial gene cytochrome oxidase IGene cytochrome oxidase IBiological species conceptPhylogenetic species conceptLow bootstrap valuesNuclear genesReproductive isolationD. equinoxialisMolecular phylogenyCOI datasetOxidase ID. paulistorumEvolutionary biologyPhylogenetic analysisSeparate speciesBootstrap valuesPhylogenyProblematic taxaGene results
1990
EVOLUTIONARY IMPLICATIONS OF DNA DIVERGENCE IN THE DROSOPHILA OBSCURA GROUP
Goddard K, Caccone A, Powell J. EVOLUTIONARY IMPLICATIONS OF DNA DIVERGENCE IN THE DROSOPHILA OBSCURA GROUP. Evolution 1990, 44: 1656-1670. PMID: 28564311, DOI: 10.1111/j.1558-5646.1990.tb03854.x.Peer-Reviewed Original ResearchDrosophila obscura groupObscura groupOld World speciesWorld speciesDNA divergenceSingle-copy DNA divergencePartial reproductive isolationGroups of DrosophilaDNA-DNA hybridizationNew World speciesObscura subgroupMelanogaster subgroupAffinis subgroupNuclear genomeReproductive isolationChromosomal divergenceEvolutionary implicationsMonophyletic groupClassical systematicsRelated taxaMitochondrial DNASpeciesHybrid formationOld WorldGenome