Origin and evolution of the northern hemisphere disjunction in the moss genus Homalothecium (Brachytheciaceae).

  title={Origin and evolution of the northern hemisphere disjunction in the moss genus Homalothecium (Brachytheciaceae).},
  author={Sanna Huttunen and Lars Heden{\"a}s and Michael S. Ignatov and Nicolas Devos and Alain Vanderpoorten},
  journal={American journal of botany},
  volume={95 6},
Competing hypotheses that rely either on a stepping-stone dispersal via the North Atlantic or the Bering land bridges, or more recent transoceanic dispersal, have been proposed to explain the disjunct distribution of Mediterranean flora in southern Europe and western North America. These hypotheses were tested with molecular dating using a phylogeny of the moss genus Homalothecium based on ITS, atpB-rbcL, and rpl16 sequence data. The monophyly of two main lineages in Western Palearctic (Europe… 

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