ALBINOMICS: A comparative approach to studying the evolution and function of mycoheterotrophy in tribe Neottieae (Orchidaceae)

This study investigates the evolution of plant-fungal symbiotic relationships and trophic mode changes, with a focus on mycoheterotrophy, the ability to obtain fixed carbon from fungi. Mycoheterotrophy has evolved multiple times across various plant lineages. While most species perform both photosynthesis and mycoheterotrophy, several hundred species have completely quit photosynthesis and become fully mycoheterotrophic. These independent transitions to higher degrees of mycoheterotrophy provide a compelling model system to investigate the evolution of plant-fungal symbiotic relationships and trophic mode changes. The proposed research will use genome-wide transcript analysis to identify the genes involved in mycoheterotrophy and characterize the changes in the degree of heterotrophy. The study aims to gain insights into the adaptation of mycoheterotrophic taxa to forest understories, where they are predominantly found, and the mechanisms driving the transitions to non-photosynthetic lifestyles. This research will contribute to our understanding of the evolutionary dynamics of plant-fungal symbioses and the ecological and genetic factors underlying the trophic mode changes.

Faculty Supervisor:

Sean Graham

Student:

Partner:

Naturalis Biodiversity Center

Discipline:

Life Sciences

Sector:

Life Sciences (not health); Biotechnology; Natural Resources

University:

The University of British Columbia

Program: