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dc.contributor.author Fehlberg, Shannon D.
dc.contributor.author Ferguson, Carolyn J.
dc.coverage.spatial Arizona
dc.coverage.spatial New Mexico
dc.date.accessioned 2012-11-12T17:14:59Z
dc.date.available 2012-11-12T17:14:59Z
dc.date.issued 2012-04-12
dc.identifier doi:10.5061/dryad.3rn6323d
dc.identifier.citation Fehlberg SD, Ferguson CJ (2012) Intraspecific cytotypic variation and complicated genetic structure in the Phlox amabilis-P. woodhousei (Polemoniaceae) complex. American Journal of Botany, 99(5): 865-874.
dc.identifier.uri http://hdl.handle.net/10255/dryad.38130
dc.description PREMISE OF THE STUDY: Polyploidy is widely recognized as an important process in the evolution of plants, but less attention has been paid to the study of intraspecific polyploidy, including its prevalence, formation, taxonomic implications, and effect on genetic diversity, structure, and gene flow within and among individuals and populations. Here we studied intraspecific ploidy level variation in the Phlox amabilis-P. woodhousei complex in order to determine the amount and distribution of cytotypic and genetic variation present and measure the extent of gene flow among species, cytotypes, and populations. METHODS: Flow cytometry and microsatellite analyses were used to ascertain cytotypic variation, genetic diversity, and population structure within and among eight populations of P. amabilis and ten populations of P. woodhousei from Arizona and New Mexico. KEY RESULTS: Our analyses support the recognition of P. amabilis and P. woodhousei as two distinct species. Both species exhibit cytotypic variation with geographically structured diploid, tetraploid and hexaploid populations, and genetic analyses suggest a combination of auto- and allopolyploidy in their formation. Diploid, tetraploid, and most hexaploid populations within species share much of their genetic variation, while some hexaploid populations are genetically distinct. All populations maintain moderately high genetic diversity and connectivity, and genetic structure is strongly influenced by geography. CONCLUSIONS: This study highlights the potential for complicated patterns of genetic variation relative to cytotypic variation and provides evidence for the role of cytotypic variation and geographic isolation in shaping diversity, differentiation and potentially speciation in the P. amabilis-P. woodhousei complex.
dc.relation.haspart doi:10.5061/dryad.3rn6323d/1
dc.relation.haspart doi:10.5061/dryad.3rn6323d/2
dc.relation.isreferencedby doi:10.3732/ajb.1100540
dc.relation.isreferencedby PMID:22523347
dc.subject allopolyploidy
dc.subject autopolyploidy
dc.subject cytotype
dc.subject flow cytometry
dc.subject gene flow
dc.subject microsatellites
dc.subject polyploidy
dc.subject population genetics
dc.title Data from: Intraspecific cytotypic variation and complicated genetic structure in the Phlox amabilis-P. woodhousei (Polemoniaceae) complex
dc.type Article *
dwc.ScientificName Phlox amabilis
dwc.ScientificName Phlox woodhousei
dwc.ScientificName Polemoniaceae
dc.contributor.correspondingAuthor Fehlberg, Shannon D.
prism.publicationName American Journal of Botany

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Title Microsatellite data for all populations in presence-absence format
Downloaded 117 times
Description This comma-delimited file contains microsatellite data for all 411 individuals from 18 populations of Phlox amabilis and P. woodhousei that were surveyed with five microsatellite loci.
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Title Microsatellite data for diploid populations
Downloaded 91 times
Description This comma-delimited file contains microsatellite data for 144 diploid individuals from 6 populations of Phlox amabilis and P. woodhousei that were surveyed with five microsatellite loci.
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