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These mushrooms have “massively expanded” genomes to make them more adaptable to multiple lifestyles - EurekAlert


A study of multiple Mycena mushroom species, also known as “bonnets,” reported in the journal Cell Genomics on June 27 has found that they have unexpectedly large genomes. While the mushrooms had been thought to live by degrading dead organic material alone, the discovery suggests that they may instead have a collection of genes to enable them to adapt to different lifestyles as circumstances change, according to the researchers. Interestingly, they show that certain Mycena strains living in the Arctic have some of the largest mushroom genomes ever described.

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