Coevolved mutualists experience fluctuating costs and benefits over time
Coevolved mutualists experience fluctuating costs and benefits over time
复制标题
随着时间的推移，共同进化的互利共生者会经历波动的成本和收益
DOI：
10.1111/evo.14155
复制
发表时间：
2021
期刊：
影响因子：
3.3
通讯作者：
Segraves, Kari A.
中科院分区：
文献类型：
--
作者：
Vidal, Mayra C.;Segraves, Kari A.
要了解互惠关系是如何随着时间的推移而持续存在的，需要研究互惠关系物种如何共同进化和适应这种相互作用。特别是，互助主义演变的关键因素是互助者在互动过程中所经历的成本和收益。在这里，我们使用了一种酵母营养互惠机制来测试互助者如何共同进化和适应强制性的互惠机制。我们让两个酵母互助者一起进化了15周(大约150代)，然后我们使用时移分析测试了互助者是否共同进化。我们还考察了与成本和收益相关的两个互惠互利的特征：资源利用效率和商品生产。我们发现，互助者很快就共同进化了。此外，收益和成本的变化是非线性的，并且随着互惠伙伴的进化变化而变化。一个互惠者最初是为了减少互惠商品生产和提高互惠资源使用效率而演变的；然而，这对其互惠伙伴产生了负面影响，因为它的合作伙伴减少了商品生产和资源使用效率。因此，前者增加了商品生产，从而增加了其合作伙伴的利益。酵母互助体的快速、非线性和异步进化与拮抗的共同进化模式非常相似，支持了互惠应被视为互惠利用的观点。
Understanding how mutualisms persist over time requires investigations of how mutualist species coevolve and adapt to the interaction. In particular, the key factors in the evolution of mutualisms are the costs and benefits mutualists experience during the interaction. Here, we used a yeast nutritional mutualism to test how mutualists coevolve and adapt in an obligate mutualism. We allowed two yeast mutualists to evolve together for 15 weeks (about 150 generations), and then we tested if the mutualists had coevolved using time-shift assays. We also examined two mutualistic traits associated with the costs and benefits: resource use efficiency and commodity production. We found that the mutualists quickly coevolved. Furthermore, the changes in benefits and costs were nonlinear and varied with evolutionary changes occurring in the mutualist partner. One mutualist initially evolved to reduce mutualistic commodity production and increase efficiency in mutualistic resource use; however, this negatively affected its mutualist partner that evolved reduced commodity production and resource use efficiency. As a result, the former increased commodity production, resulting in an increase in benefits for its partner. The quick, nonlinear, and asynchronous evolution of yeast mutualists closely resembles antagonistic coevolutionary patterns, supporting the view that mutualisms should be considered as reciprocal exploitation.
登录
查看更多内容
DOI：
10.1098/rspb.2012.1697
发表时间：
2012-11-22
影响因子：
4.7
作者：
Gokhale, Chaitanya S.;Traulsen, Arne
通讯作者：
Traulsen, Arne
影响因子：
16.6
作者：
Pande, Samay;Shitut, Shraddha;Kost, Christian
通讯作者：
Kost, Christian
影响因子：
3.7
作者：
Hosoda K;Suzuki S;Yamauchi Y;Shiroguchi Y;Kashiwagi A;Ono N;Mori K;Yomo T
通讯作者：
Yomo T
影响因子：
56.9
作者：
Mayra C. Vidal;Sheng Pei Wang;D. Rivers;D. Althoff;K. A. Segraves
通讯作者：
Mayra C. Vidal;Sheng Pei Wang;D. Rivers;D. Althoff;K. A. Segraves
影响因子：
64.8
作者：
MacLean, RC;Gudelj, I
通讯作者：
Gudelj, I