Experimental evolution makes microbes more cooperative with their local host genotype

doi:10.1126/science.abb7222

GSTDTAP > 气候变化

DOI	10.1126/science.abb7222
	Experimental evolution makes microbes more cooperative with their local host genotype
	Rebecca T. Batstone; Anna M. O’Brien; Tia L. Harrison; Megan E. Frederickson
	2020-10-23
发表期刊	Science
出版年	2020
英文摘要	Many legumes have a host-symbiote relationship with nitrogen-fixing bacteria, or rhizobia, that provides a benefit to both the plant and the microbe. Batstone et al. experimentally evolved the association between five legume accessions and different bacterial isolates. Rather than observe selection by the host for bacterial associations (host choice), mutations accumulated within a bacterial plasmid and increased the strength of the mutualism. Thus, local and recent associations between bacterial strains and plant genotypes are due to selection for bacterial adaptation. Science , this issue p. [476][1] Advances in microbiome science require a better understanding of how beneficial microbes adapt to hosts. We tested whether hosts select for more-cooperative microbial strains with a year-long evolution experiment and a cross-inoculation experiment designed to explore how nitrogen-fixing bacteria (rhizobia) adapt to legumes. We paired the bacterium Ensifer meliloti with one of five Medicago truncatula genotypes that vary in how strongly they “choose” bacterial symbionts. Independent of host choice, E. meliloti rapidly adapted to its local host genotype, and derived microbes were more beneficial when they shared evolutionary history with their host. This local adaptation was mostly limited to the symbiosis plasmids, with mutations in putative signaling genes. Thus, cooperation depends on the match between partner genotypes and increases as bacteria adapt to their local host. [1]: /lookup/doi/10.1126/science.abb7222
领域	气候变化 ; 资源环境
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/300301
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Rebecca T. Batstone,Anna M. O’Brien,Tia L. Harrison,et al. Experimental evolution makes microbes more cooperative with their local host genotype[J]. Science,2020.
APA	Rebecca T. Batstone,Anna M. O’Brien,Tia L. Harrison,&Megan E. Frederickson.(2020).Experimental evolution makes microbes more cooperative with their local host genotype.Science.
MLA	Rebecca T. Batstone,et al."Experimental evolution makes microbes more cooperative with their local host genotype".Science (2020).