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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Functional equivalence and evolutionary convergence in complex communities of microbial sponge symbionts
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Functional equivalence and evolutionary convergence in complex communities of microbial sponge symbionts

机译：微生物海绵共生体复杂群落中的功能对等和进化趋同

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摘要

Microorganisms and higher eukaryotes often form symbiotic relationships whose complexity can range from a relationship with one dominant symbiont to associations with hundreds of symbiont species (1). The mechanisms that shape the structure of complex symbiont communities are largely unknown. Here, we use the symbiosis between microbes and sponges as a model to unveil key principles governing the evolution of complex symbiont communities. We demonstrate that microbial communities from phylogenetically divergent and geographically disparate sponge hosts have converged to perform a set of core functions and that frequent genetic exchange within these communities may drive their evolution. Microbial symbionts occupying equivalent niches in different eukaryotic hosts may share functional aspects, and convergent genome evolution has been reported for simple symbiont systems in insects (2). We possess only a limited understanding of the prevalence of functional equivalence in complex symbiont communities and whether equivalent functions are conducted by evolutionarily convergent mechanisms.
机译：微生物和高等真核生物经常形成共生关系，其复杂性范围从与一个优势共生体的关系到与数百种共生体物种的关系（1）。塑造复杂共生体群落结构的机制在很大程度上尚不清楚。在这里，我们以微生物与海绵之间的共生为模型，揭示了控制复杂共生体群落进化的关键原理。我们证明，从系统发育上不同和地理位置不同的海绵宿主出发的微生物群落已经汇聚在一起以执行一系列核心功能，并且这些群落之间频繁的基因交换可能会推动它们的进化。在不同的真核生物宿主中占据同等生态位的微生物共生体可能共享功能方面的问题，并且已经报道了昆虫中简单共生体系统的会聚基因组进化（2）。我们对复杂共生体中功能对等的普遍性以及是否通过进化趋同机制来执行对等功能的了解有限。

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    Lu Fan; David Reynolds; Michael Liu; Manuel Stark; Staffan Kjelleberg; Nicole S. Webster; Torsten Thomas;

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    School of Biotechnology and Biomolecular Sciences New South Wales 2052,Australia Centre for Marine Bio-Innovation, University of New South Wales, Sydney, New South Wales 2052,Australia;

    School of Biotechnology and Biomolecular Sciences New South Wales 2052,Australia Centre for Marine Bio-Innovation, University of New South Wales, Sydney, New South Wales 2052,Australia;

    School of Biotechnology and Biomolecular Sciences New South Wales 2052,Australia Centre for Marine Bio-Innovation, University of New South Wales, Sydney, New South Wales 2052,Australia;

    Institute of Molecular Life Sciences University of Zurich, 8057 Zurich, Switzerland Swiss Institute of Bioinformatics, University of Zurich, 8057 Zurich, Switzerland;

    School of Biotechnology and Biomolecular Sciences New South Wales 2052,Australia Centre for Marine Bio-Innovation, University of New South Wales, Sydney, New South Wales 2052,Australia Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Republic of Singapore;

    Australian Institute of Marine Science, Townsville,Queensland 4810, Australia;

    School of Biotechnology and Biomolecular Sciences New South Wales 2052,Australia Centre for Marine Bio-Innovation, University of New South Wales, Sydney, New South Wales 2052,Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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