Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA 92521, USA.
Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA 92521, USA; Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, USA; Institute for Integrative Genome Biology, University of California, Riverside, CA 92521, USA.
Trends Ecol Evol. 2022 Jul;37(7):599-610. doi: 10.1016/j.tree.2022.02.014. Epub 2022 Apr 5.
Diverse plants and animals have evolved specialized structures to filter and house beneficial microbes. These symbiotic organs form crucial points of exchange between host and symbiont, are often shaped by both partners, and exhibit features that facilitate a suite of microbial services. While symbiotic organs exhibit varied function, morphology, and developmental plasticity, they share core features linked to the evolutionary maintenance of beneficial symbiosis. Moreover, these organs can have a significant role in altering the demographic forces that shape microbial genomes, driving population bottlenecks and horizontal gene transfer (HGT). To advance our understanding of these 'joint phenotypes' across varied systems, future research must consider the emergent forces that can shape symbiotic organs, including fitness feedbacks and conflicts between interacting genomes.
多样的动植物已经进化出专门的结构来过滤和容纳有益的微生物。这些共生器官形成了宿主和共生体之间交换的关键节点，通常由双方共同塑造，并具有促进一系列微生物服务的特征。虽然共生器官表现出不同的功能、形态和发育可塑性，但它们具有与有益共生进化维持相关的核心特征。此外，这些器官在改变塑造微生物基因组的人口统计学力量方面可以发挥重要作用，推动种群瓶颈和水平基因转移（HGT）。为了提高我们对不同系统中这些“联合表型”的理解，未来的研究必须考虑到能够塑造共生器官的新兴力量，包括适应性反馈和相互作用基因组之间的冲突。
