Lorchel taxonomy overhauled: synopsis of our Discinaceae phylogenomics publication

In investigating the genetics and evolution of gyromitrin, I sequenced 75 Discinaceae genomes representing all the known species-group clades in the family and conducted phylogenomic analyses. This means that instead of using a few genes to infer a phylogenetic tree, thousands of conserved genes are used to infer evolutionary relatedness. Why are more data better? A few genes may conflict with each other in the story they tell, but thousands of genes typically result in a much more robust inference of evolutionary history. It's basically statistical — the bigger the sample size the greater your power to infer the truth (up to a point). Indeed, our large dataset allowed us to resolve the ancestral relationships of the lorchel family, and the results were published in the journal Molecular Phylogenetics and Evolution (PDF). The lorchels are an amazing and diverse group of mushrooms whose taxonomy has been debated for centuries. With these genomes, we were able to not only infer a robust phylogenetic tree and make informed taxonomic revisions but also better understand lorchel ecology and reproduction based on their genomic properties. Check out a recorded presentation I gave for the North American Mycological Association winter webinar series if you'd like to learn more. 

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