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


ABSTRACT: 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 1,049 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.

SUBMITTER: Opulente DA 

PROVIDER: S-EPMC10327049 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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

Opulente Dana A DA   Leavitt LaBella Abigail A   Harrison Marie-Claire MC   Wolters John F JF   Liu Chao C   Li Yonglin Y   Kominek Jacek J   Steenwyk Jacob L JL   Stoneman Hayley R HR   VanDenAvond Jenna J   Miller Caroline R CR   Langdon Quinn K QK   Silva Margarida M   Gonçalves Carla C   Ubbelohde Emily J EJ   Li Yuanning Y   Buh Kelly V KV   Jarzyna Martin M   Haase Max A B MAB   Rosa Carlos A CA   Čadež Neža N   Libkind Diego D   DeVirgilio Jeremy H JH   Beth Hulfachor Amanda A   Kurtzman Cletus P CP   Sampaio José Paulo JP   Gonçalves Paula P   Zhou Xiaofan X   Shen Xing-Xing XX   Groenewald Marizeth M   Rokas Antonis A   Hittinger Chris Todd CT  

bioRxiv : the preprint server for biology 20230908


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 1,049 species), metabolic (quantitative measures of growth of 843 species in 24 conditions), and ecological (environmental ontology of 1,088 species) data from nearly  ...[more]

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