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Genomic and ecological factors shaping specialism and generalism across an entire subphylum

Posted on 2024-03-12 - 22:00 authored by Chris Todd Hittinger
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. 


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FUNDING

DIMENSIONS: Collaborative Research: The Making of Biodiversity Across the Yeast Subphylum

Directorate for Biological Sciences

Collaborative Research: RoL: The Evolution of the Genotype-Phenotype Map across Budding Yeasts

Directorate for Biological Sciences

DIMENSIONS: Collaborative Research: The Making of Biodiversity Across the Yeast Subphylum

Directorate for Biological Sciences

Collaborative Research: RoL: The Evolution of the Genotype-Phenotype Map across Budding Yeasts

Directorate for Biological Sciences

Great Lakes Bioenergy Research Center

Office of Biological and Environmental Research

Hatch Project 1020204

Research Institution(s)

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

Competing Interest Statement

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.

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AUTHORS (17)

Antonis Rokas
Marie-Claire Harrison
John F. Wolters
Chao Liu
Jacek Kominek
Margarida Silva
Amanda Beth Hulfachor
Yonglin Li
Marizeth Groenewald
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