The biogeographic differentiation of algal microbiomes in the upper ocean from pole to pole.
The biogeographic differentiation of algal microbiomes in the upper ocean from pole to pole.
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DOI：
10.1038/s41467-021-25646-9
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发表时间：
2021-09-16
影响因子：
16.6
通讯作者：
Mock T
中科院分区：
文献类型：
--
作者：
Martin K;Schmidt K;Toseland A;Boulton CA;Barry K;Beszteri B;Brussaard CPD;Clum A;Daum CG;Eloe-Fadrosh E;Fong A;Foster B;Foster B;Ginzburg M;Huntemann M;Ivanova NN;Kyrpides NC;Lindquist E;Mukherjee S;Palaniappan K;Reddy TBK;Rizkallah MR;Roux S;Timmermans K;Tringe SG;van de Poll WH;Varghese N;Valentin KU;Lenton TM;Grigoriev IV;Leggett RM;Moulton V;Mock T
真核浮游植物每年至少占全球碳固定总量的20%。它们的多样性和活性是通过与作为复杂微生物群一部分的原核生物相互作用而形成的。尽管已经估计了它们当地物种多样性的差异，但我们对导致当地物种群落从两极到另一极大规模组成差异的环境条件的了解仍然有限。在这里，我们表明，基于极地浮游植物元转录和微生物rDNA测序，极地和非极地上层海洋之间的环境差异对藻类微生物群落中生物多样性和基因活动的大规模空间格局影响最大。藻类微生物群落中共生微生物的地理差异可以用纬度温度梯度和与之相关的贝塔多样性断点来很好地解释，平均断点在14 °C ± 4.3，分隔冷暖上层海洋。随着全球变暖对上层海洋温度的影响，我们预计，贝塔多样性的转折点明显向极点移动。因此，藻类微生物群的突然变化可能是人为气候变化造成的。全球上层海洋的纬度生态系统边界可能受到许多因素的驱动。在这里，作者研究了从一极到另一极的真核浮游植物的元转录、基因共表达网络和β多样性，发现温度梯度最能解释地理模式。
Eukaryotic phytoplankton are responsible for at least 20% of annual global carbon fixation. Their diversity and activity are shaped by interactions with prokaryotes as part of complex microbiomes. Although differences in their local species diversity have been estimated, we still have a limited understanding of environmental conditions responsible for compositional differences between local species communities on a large scale from pole to pole. Here, we show, based on pole-to-pole phytoplankton metatranscriptomes and microbial rDNA sequencing, that environmental differences between polar and non-polar upper oceans most strongly impact the large-scale spatial pattern of biodiversity and gene activity in algal microbiomes. The geographic differentiation of co-occurring microbes in algal microbiomes can be well explained by the latitudinal temperature gradient and associated break points in their beta diversity, with an average breakpoint at 14 °C ± 4.3, separating cold and warm upper oceans. As global warming impacts upper ocean temperatures, we project that break points of beta diversity move markedly pole-wards. Hence, abrupt regime shifts in algal microbiomes could be caused by anthropogenic climate change. Latitudinal ecosystem boundaries in the global upper ocean may be driven by many factors. Here the authors investigate pole-to-pole eukaryotic phytoplankton metatranscriptomes, gene co-expression networks, and beta diversity, finding that geographic patterns are best explained by temperature gradients.
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影响因子：
14.9
作者：
Chen, I-Min A.;Chu, Ken;Kyrpides, Nikos C.
通讯作者：
Kyrpides, Nikos C.
影响因子：
5.8
作者：
Edgar, Robert C.
通讯作者：
Edgar, Robert C.
影响因子：
2.5
作者：
BOUCHER, N;VAULOT, D;PARTENSKY, F
通讯作者：
PARTENSKY, F
DOI：
10.1099/00207713-48-4-1213
发表时间：
1998-10-01
期刊：
INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY
影响因子：
--
作者：
Bowman, JP;McCammon, SA;McMeekin, TA
通讯作者：
McMeekin, TA
影响因子：
3.6
作者：
Capotondi, Antonietta;Alexander, Michael A.;Scott, James D.
通讯作者：
Scott, James D.