Mutualism-enhancing mutations dominate early adaptation in a two-species microbial community
Mutualism-enhancing mutations dominate early adaptation in a two-species microbial community
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增强互利的突变主导着两个物种微生物群落的早期适应
DOI:
10.1038/s41559-022-01923-8
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发表时间:
2023
影响因子:
16.8
通讯作者:
Kryazhimskiy, Sergey
中科院分区:
文献类型:
--
作者:
Venkataram, Sandeep;Kuo, Huan-Yu;Hom, Erik F.;Kryazhimskiy, Sergey
Species interactions drive evolution while evolution shapes these interactions. The resulting eco-evolutionary dynamics and their repeatability depend on how adaptive mutations available to community members affect fitness and ecologically relevant traits. However, the diversity of adaptive mutations is not well characterized, and we do not know how this diversity is affected by the ecological milieu. Here we use barcode lineage tracking to address this question in a community of yeastSaccharomyces cerevisiaeand algaChlamydomonas reinhardtiithat have a net commensal relationship that results from a balance between competitive and mutualistic interactions. We find that yeast has access to many adaptive mutations with diverse ecological consequences, in particular those that increase and reduce the yields of both species. The presence of the alga does not change which mutations are adaptive in yeast (that is, there is no fitness trade-off for yeast between growing alone or with alga), but rather shifts selection to favour yeast mutants that increase the yields of both species and make the mutualism stronger. Thus, in the presence of the alga, adaptative mutations contending for fixation in yeast are more likely to enhance the mutualism, even though cooperativity is not directly favoured by natural selection in our system. Our results demonstrate that ecological interactions not only alter the trajectory of evolution but also dictate its repeatability; in particular, weak mutualisms can repeatably evolve to become stronger.
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DOI:
--
发表时间:
2017
期刊:
Proceedings of the Royal Society B: Biological Sciences
影响因子:
--
作者:
J. Orivel;P. Malé;Jérémie Lauth;O. Roux;F. Petitclerc;A. Dejean;C. Leroy
通讯作者:
C. Leroy
DOI:
10.1146/annurev-ecolsys-110218-024926
发表时间:
2019
期刊:
Annual Review of Ecology, Evolution, and Systematics
影响因子:
--
作者:
D. Reznick;J. Travis
通讯作者:
J. Travis
影响因子:
11
作者:
Fritts, Ryan K.;Bird, Jordan T.;McKinlay, James B.
通讯作者:
McKinlay, James B.
影响因子:
4.3
作者:
Wortel MT;Noor E;Ferris M;Bruggeman FJ;Liebermeister W
通讯作者:
Liebermeister W
DOI:
10.1073/pnas.1921881117
发表时间:
2019
影响因子:
11.1
作者:
S. Venkataram;R. Monasky;Shohreh H Sikaroodi;S. Kryazhimskiy;B. Kacar
通讯作者:
B. Kacar