全球海洋微生物多样性的季节模式

IF 5.1 2区 地球科学 Q1 LIMNOLOGY
Eric J. Raes, Shannon Myles, Liam MacNeil, Matthias Wietz, Christina Bienhold, Karen Tait, Paul J. Somerfield, Andrew Bissett, Jodie van de Kamp, Josep M. Gasol, Ramon Massana, Yi-Chun Yeh, Jed A. Fuhrman, Julie LaRoche
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引用次数: 0

摘要

了解海洋微生物(细菌和古细菌)多样性的模式至关重要,因为其α-和β-多样性的变化会影响生态过程。全球海洋考察和全海盆横断面微生物多样性调查显示,微生物多样性与温度或生产力之间存在正相关关系,但这些研究很少捕捉到季节性,尤其是在极地地区。在这里,我们利用南北半球八个时间序列的多年度α-多样性数据表明,海洋微生物群落的丰富度和均匀度与昼长的相关性通常比与温度或叶绿素 a(光合生物量的代表)的相关性更强。无论采集方法、DNA 提取方案、目标 16S rRNA 超变区、测序技术或生物信息学管道如何,在南北半球发现的时间序列中都能观察到这种模式。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Seasonal patterns of microbial diversity across the world oceans

Seasonal patterns of microbial diversity across the world oceans

Understanding the patterns of marine microbial diversity (Bacteria + Archaea) is essential, as variations in their alpha- and beta-diversities can affect ecological processes. Investigations of microbial diversity from global oceanographic expeditions and basin-wide transects show positive correlations between microbial diversity and either temperature or productivity, but these studies rarely captured seasonality, especially in polar regions. Here, using multiannual alpha-diversity data from eight time series in the northern and southern hemispheres, we show that marine microbial community richness and evenness generally correlate more strongly with daylength than with temperature or chlorophyll a (a proxy for photosynthetic biomass). This pattern is observable across time series found in the northern and southern hemispheres regardless of collection method, DNA extraction protocols, targeted 16S rRNA hypervariable region, sequencing technology, or bioinformatics pipeline.

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来源期刊
CiteScore
10.00
自引率
3.80%
发文量
63
审稿时长
25 weeks
期刊介绍: Limnology and Oceanography Letters (LO-Letters) serves as a platform for communicating the latest innovative and trend-setting research in the aquatic sciences. Manuscripts submitted to LO-Letters are expected to present high-impact, cutting-edge results, discoveries, or conceptual developments across all areas of limnology and oceanography, including their integration. Selection criteria for manuscripts include their broad relevance to the field, strong empirical and conceptual foundations, succinct and elegant conclusions, and potential to advance knowledge in aquatic sciences.
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