Genetic Organization and Evolutionary History in Two North American Species of Cirsium.

@article{Loveless1988GeneticOA,
  title={Genetic Organization and Evolutionary History in Two North American Species of Cirsium.},
  author={M D Loveless and James L. Hamrick},
  journal={Evolution; international journal of organic evolution},
  year={1988},
  volume={42 2},
  pages={254-265}
}
Relationships involving progenitor and derivative species pairs have been documented for a number of plant taxa. In this study, we used starch-gel electrophoresis to examine the probable relationship between Cirsium pitcheri, an endemic thistle restricted to the shorelines of the Great Lakes, and Cirsium canescens, a closely related species of the central Great Plains (U.S.A.). The species shared the same enzyme loci but differed greatly in levels of genetic diversity. C. pitcheri was… CONTINUE READING

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