Niche construction initiates the evolution of mutualistic interactions
Niche construction initiates the evolution of mutualistic interactions
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DOI：
10.1111/ele.12331
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发表时间：
2014-10-01
期刊：
影响因子：
8.8
通讯作者：
Goddard, Matthew R.
中科院分区：
文献类型：
--
作者：
Buser, Claudia C.;Newcomb, Richard D.;Goddard, Matthew R.
生态位构建理论解释了生物体的生态位修改如何反馈影响其进化轨迹。理论上，进入相同修改生态位的其他物种的进化也可能受到影响。我们认为，这种生态位的建设可能是一个普遍的机制，推动互利主义的演变。果蝇从接触酵母菌感染的水果中获益，但这种相互作用对酵母菌的影响尚不清楚。我们揭示了酿酒酵母菌株之间的变化，在他们的能力，修改水果和吸引果蝇simulans。无论是在实验室还是在野外，更有吸引力的酵母菌分布得更频繁，与更有吸引力的酵母菌相关的苍蝇具有更高的繁殖力。虽然可能存在多种天然酵母和蝇种相互作用，但我们在实验室和现场的受控测定提供了互惠相互作用的证据，这是由酵母的生态位修饰促成的。
Niche construction theory explains how organisms' niche modifications may feed back to affect their evolutionary trajectories. In theory, the evolution of other species accessing the same modified niche may also be affected. We propose that this niche construction may be a general mechanism driving the evolution of mutualisms. Drosophilid flies benefit from accessing yeast-infested fruits, but the consequences of this interaction for yeasts are unknown. We reveal high levels of variation among strains of Saccharomyces cerevisiae in their ability to modify fruits and attract Drosophila simulans. More attractive yeasts are dispersed more frequently, both in the lab and in the field, and flies associated with more attractive yeasts have higher fecundity. Although there may be multiple natural yeast and fly species interactions, our controlled assays in the lab and field provide evidence of a mutualistic interaction, facilitated by the yeast's niche modification.