Organisms exhibit extensive variation in ecological niche breadth, from very narrow (specialists) to very broad (generalists). Paradigms proposed to explain this variation either invoke trade-offs between performance efficiency and breadth or underlying intrinsic or extrinsic factors. We assembled genomic (1,154 yeast strains from 1,090 species), metabolic (quantitative measures of growth of 843 species in 24 conditions), and ecological (environmental ontology of 1,088 species) data from nearly all known species of the ancient fungal subphylum Saccharomycotina to examine niche breadth evolution. We found large interspecific differences in carbon breadth stem from intrinsic differences in genes encoding specific metabolic pathways but no evidence of trade-offs and a limited role of extrinsic ecological factors. These comprehensive data argue that intrinsic factors driving microbial niche breadth variation.
The items in this collected encompass the supporting data for the analyses described above for the associated publication
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Hittinger, Chris Todd; LaBella, Abigail; Opulente, Dana; Rokas, Antonis; Harrison, Marie-Claire; Wolters, John F.; et al. (2024). Genomic and ecological factors shaping specialism and generalism across an entire subphylum. Figshare+. Collection. https://doi.org/10.25452/figshare.plus.c.6714042
UW-Madison; Villanova; Vanderbilt; UNC Charlotte; Zhejiang U.; South China Agricultural U.; UC Berkeley; U. NOVA de Lisboa; Shandong U.; Zhejiang U.; Westerdijk Fungal Biodiversity Institute
J.L.S. is a scientific adviser for WittGen Biotechnologies and an adviser for ForensisGroup, Inc. A.R. is a scientific consultant for LifeMine Therapeutics, Inc. The other authors declare no other competing interests.