Convergent evolution of a symbiotic duet: the case of the lichen genus Polychidium (Peltigerales, Ascomycota).

@article{Muggia2011ConvergentEO,
  title={Convergent evolution of a symbiotic duet: the case of the lichen genus Polychidium (Peltigerales, Ascomycota).},
  author={Lucia Muggia and Peter Nelson and Tim R. Wheeler and Lidia S Yakovchenko and Tor T\onsberg and Toby Spribille},
  journal={American journal of botany},
  year={2011},
  volume={98 10},
  pages={1647-56}
}
PREMISE OF THE STUDY Thallus architecture has long been a powerful guide for classifying lichens and has often trumped photobiont association and ascomatal type, but the reliability of these characters to predict phylogenetic affinity has seldom been tested. The cyanolichen genus Polychidium unites species that have strikingly similar gross morphology but consort with different photobiont genera. If Polychidium were found to be monophyletic, photobiont switching among closely related species… CONTINUE READING