Searching for Evidence against the Mutualistic Nature of Hereditary Symbioses: A Comment on Faeth
Searching for Evidence against the Mutualistic Nature of Hereditary Symbioses: A Comment on Faeth
复制标题
寻找反对遗传共生互惠性质的证据：对信仰的评论
作者：
Jennifer A. Rudgers;Andrew J Davitt;K. Clay;P. Gundel;M. Omacini
真菌内生菌和禾本科植物之间的关联已经成为探索遗传共生的性质和意义的特别有用的系统。在这里，我们提出了替代的解释，最近的工作Faeth，其中内生菌被提出作为生殖寄生虫。Faeth认为，他的数据表明，共生诱导的向早期宿主繁殖的转变可能通过生活史与生长/生存的权衡产生寄生。我们认为，确定一个共生互利或寄生需要的研究，结合人口的途径和共生体传输率之间的相关性，这样的工作可以促进生态和共生进化的理解。
Associations between fungal endophytes and grasses have served as particularly useful systems for exploring the nature and significance of hereditary symbiosis. Here, we propose alternative explanations for recent work by Faeth, in which endophytes were proposed to function as reproductive parasites. Faeth argued that his data demonstrated a symbiosis‐induced shift to earlier host reproduction that could generate parasitism through life‐history trade‐offs with growth/survival. We contend that identifying a symbiosis as mutualistic or parasitic requires studies that incorporate both correlations among demographic pathways and rates of symbiont transmission; such work can advance understanding of the ecology and evolution of symbiosis.