Evolution of the Mode of Nutrition in Symbiotic and Saprotrophic Fungi in Forest Ecosystems

IF 11.2 1区生物学 Q1 ECOLOGY

Annual Review of Ecology, Evolution, and Systematics Pub Date : 2021-08-31 DOI:10.1146/annurev-ecolsys-012021-114902

Annie Lebreton, Qingchao Zeng, Shingo Miyauchi, A. Kohler, Yu-Cheng Dai, Francis M. Martin

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引用次数: 15

Abstract

In this review, we highlight the main insights that have been gathered from recent developments using large-scale genomics of fungal saprotrophs and symbiotrophs (including ectomycorrhizal and orchid and ericoid mycorrhizal fungi) inhabiting forest ecosystems. After assessing the goals and motivations underlying our approach, we explore our current understanding of the limits and future potential of using genomics to understand the ecological roles of these forest fungi. Comparative genomics unraveled the molecular machineries involved in lignocellulose decomposition in wood decayers, soil and litter saprotrophs, and mycorrhizal symbionts. They also showed that transitions from saprotrophy to mutualism entailed widespread losses of lignocellulose-degrading enzymes; diversification of novel, lineage-specific symbiosis-induced genes; and convergent evolution of genetic innovations that facilitate the accommodation of mutualistic symbionts within their plant hosts. We also identify the major questions that remain unanswered and propose new avenues of genome-based research to understand the role of soil fungi in sustainable forest ecosystems. Expected final online publication date for the Annual Review of Ecology, Evolution, and Systematics, Volume 52 is November 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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森林生态系统共生与腐养真菌营养模式的演化

在这篇综述中，我们重点介绍了近年来利用森林生态系统中真菌腐生菌和共生菌(包括外生菌根真菌、兰花菌根真菌和ericoid菌根真菌)的大规模基因组学研究进展所收集到的主要见解。在评估了我们方法的目标和动机之后，我们探索了我们目前对使用基因组学来理解这些森林真菌的生态作用的限制和未来潜力的理解。比较基因组学揭示了在木材腐尸、土壤和凋落物腐殖质以及菌根共生体中涉及木质纤维素分解的分子机制。他们还表明，从腐殖到共生的转变导致木质纤维素降解酶的广泛损失;新型、谱系特异性共生诱导基因的多样化;基因创新的趋同进化促进了共生共生体在其植物宿主内的适应。我们还确定了尚未解决的主要问题，并提出了基于基因组的研究的新途径，以了解土壤真菌在可持续森林生态系统中的作用。预计《生态、进化和分类学年度评论》第52卷的最终在线出版日期为2021年11月。修订后的估计数请参阅http://www.annualreviews.org/page/journal/pubdates。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annual Review of Ecology, Evolution, and Systematics 生物-进化生物学

CiteScore

19.90

自引率

1.70%

发文量

期刊介绍： The Annual Review of Ecology, Evolution, and Systematics is a scholarly publication that has been in circulation since 1970. It focuses on important advancements in the areas of ecology, evolutionary biology, and systematics, with relevance to all forms of life on Earth. The journal features essay reviews that encompass various topics such as phylogeny, speciation, molecular evolution, behavior, evolutionary physiology, population dynamics, ecosystem processes, and applications in invasion biology, conservation, and environmental management. Recently, the current volume of the journal transitioned from a subscription-based model to open access through the Annual Reviews' Subscribe to Open program. Consequently, all articles published in the current volume are now available under a CC BY license.