A 17-year time-series of fungal environmental DNA from a coastal marine ecosystem reveals long-term seasonal-scale and inter-annual diversity patterns.

A 17-year time-series of fungal environmental DNA from a coastal marine ecosystem reveals long-term seasonal-scale and inter-annual diversity patterns.
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来自沿海海洋生态系统的真菌环境DNA的17年时间序列揭示了长期的季节尺度和年际多样性模式。

DOI:
10.1098/rspb.2022.2129
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发表时间:
2023-02-08
影响因子:
4.7
通讯作者:
Cunliffe, Michael
Cunliffe, Michael
中科院分区:
生物学1区
文献类型:
--
作者:
Chrismas, Nathan;Allen, Ro;Allen, Michael J.;Bird, Kimberley;Cunliffe, Michael

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多样性模式的变化是许多生境的一个特征,季节性是生态系统结构和功能的主要驱动力。在沿海的海洋生态系统中,季节性已经通过浮游细菌和原生生物的长期时间序列建立起来。除了这些群体,真菌也栖息在沿海海洋生态系统中。海洋真菌是否以及如何表现出长期的年内和年际多样性模式尚不清楚,这阻碍了对海洋真菌生态学的全面了解。在这里,我们使用17年的环境DNA时间序列从英吉利海峡,以确定长期的海洋真菌多样性模式。我们发现,真菌群落结构的进展,在季节性和月度尺度上,只有弱相关的环境参数。社区每52周重组一次,表明多样性模式具有长期稳定性。一些主要的海洋真菌属具有明显的年际复发模式,在同一时期的年周期中重新出现。可能是非海洋的低相对丰度类群显示季节性输入到沿海海洋生态系统,表明陆地-海洋交换定期发生。我们的研究结果表明,长期的年度内和年度间的海洋真菌多样性模式。我们预计这项研究可以为更好地了解海洋真菌的生态学以及它们如何适应更广泛的沿海海洋生态系统的结构和功能奠定基础。
Changing patterns in diversity are a feature of many habitats, with seasonality a major driver of ecosystem structure and function. In coastal marine plankton-based ecosystems, seasonality has been established through long-term time-series of bacterioplankton and protists. Alongside these groups, fungi also inhabit coastal marine ecosystems. If and how marine fungi show long-term intra- and inter-annual diversity patterns is unknown, preventing a comprehensive understanding of marine fungal ecology. Here, we use a 17-year environmental DNA time-series from the English Channel to determine long-term marine fungal diversity patterns. We show that fungal community structure progresses at seasonal and monthly scales and is only weakly related to environmental parameters. Communities restructured every 52-weeks suggesting long-term stability in diversity patterns. Some major marine fungal genera have clear inter-annual recurrence patterns, re-appearing in the annual cycle at the same period. Low relative abundance taxa that are likely non-marine show seasonal input to the coastal marine ecosystem suggesting land–sea exchange regularly takes place. Our results demonstrate long-term intra- and inter-annual marine fungal diversity patterns. We anticipate this study could form the basis for better understanding the ecology of marine fungi and how they fit in the structure and function of the wider coastal marine ecosystem.
DOI: 10.1038/nmeth.3869
发表时间: 2016-07
期刊: Nature methods
影响因子: 48
作者:
Callahan BJ;McMurdie PJ;Rosen MJ;Han AW;Johnson AJ;Holmes SP
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发表时间: 2000-11-01
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期刊: MYCOLOGIA
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