The Genetic Mosaic of Iris Series Hexagonae in Florida: Inferences on the Holocene History of the Louisiana Irises and Anthropogenic Effects on Their Distribution

  title={The Genetic Mosaic of Iris Series Hexagonae in Florida: Inferences on the Holocene History of the Louisiana Irises and Anthropogenic Effects on Their Distribution},
  author={Alan William Meerow and Michael Derek Gideon and David N. Kuhn and Susan Mopper and Kyoko Nakamura},
  journal={International Journal of Plant Sciences},
  pages={1026 - 1052}
Iris series Hexagonae is a small, monophyletic complex of five species and associated hybrid populations, popularly known as the “Louisiana irises.” The Hexagonae alliance of Iris has been recognized as a textbook case of introgressive hybridization on the basis of numerous studies in Louisiana. In light of field observations of phenotypic heterogeneity among Florida populations, we investigated genetic variation within and among 37 populations of Iris series Hexagonae from Florida, seven from… 

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It is hypothesize that the two predominantly clonal populations of Iris hexagona at its southern limits in the Florida peninsula may be artifacts of deliberate cultivation by humans, and frequency‐based genetic structure analysis resolves seven effective populations.

Patterns of genetic and phenotypic variation in Iris haynei and I. atrofusca (Iris sect. Oncocyclus = the royal irises) along an ecogeographical gradient in Israel and the West Bank

It appears that extant populations are currently deviating from equilibrium conditions because of primary divergence of a formerly more widespread ancestral population, and it is argued for a revision of their species status.

Allozyme variation in Louisiana irises: a test for introgression and hybrid speciation

The genetic analysis along with previous chromosomal, distributional and demographic studies of the Louisiana Iris species suggests that a number of mechanisms may have been involved in the stabilization of this hybrid derivative.

Isozyme diversity in Iris Cristata and the threatened glacial endemic I. Lacustris (Iridaceae).

The long-lived perennial habit and high outcrossing rate in stable populations are proposed as factors contributing to high genetic diversity in I. cristata.

Genetic insights into the biogeography of the southeastern North American endemic, Ceratiola ericoides (Empetraceae).

The levels and partitioning of allozyme diversity in the southeastern North American endemic, Ceratiola ericoides, which displayed greater genetic variation and structure than other endemics is investigated.

Pollen-mediated introgression and hybrid speciation in Louisiana irises.

Individuals analyzed from a contemporary hybrid population demonstrate multilocus genotypes that are indicative of advanced-generation hybrid individuals that demonstrate the power of the polymerase chain reaction methodology for the rapid identification of random and specific genetic markers for testing evolutionary genetic hypotheses.

Isolation and characterization of 10 microsatellite loci from Iris hexagona (Iridaceae)

Ten microsatellite loci isolated from Iris hexagona are described. All these loci are polymorphic, with three to 13 alleles across 24 individuals from a single natural population. Heterozygosity


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High levels of genetic diversity in populations of Iris aphylla L. (Iridaceae), an endangered species in Poland

Although sexual reproduction and gene flow between populations of I. aphylla were very limited, they preserved high levels of genetic diversity, indicating that genetic diversity was independent of population size.


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