Harvard Forest Research

Genetic diversity of algal symbionts in the lichen Umbilicaria mammulata

Principal Investigator: Benjamin Wolfe
Harvard University: Jul 01 2009 - Aug 31 2010:

Abstract:
Lichens are classic examples of a symbiosis between fungi (the mycobiont) and photosynthetic algae or cyanobacteria (the photobiont). Little is known about the identity and genetic diversity of the photobionts of lichens in North America, especially in New England. As part of a survey of the lichen Umbilicaria mammulata throughout New England, we are identifying the algal partner in this symbiosis using molecular techniques. At the Harvard Forest, we will be sampling lichens growing on a large boulder on the trail in the Simes Tract. The spatial patterns of photobiont diversity within individual lichens and across the boulder will be put in the context of a larger survey that we have conducted at 15 sites throughout New England. Our results will comprehensively describe the spatial patterns of symbiont specificity of a widespread lichen. :