Genomic variation in microbial populations inhabiting the marine subseafloor at deep-sea hydrothermal vents.
Genomic variation in microbial populations inhabiting the marine subseafloor at deep-sea hydrothermal vents.
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DOI：
10.1038/s41467-017-01228-6
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发表时间：
2017-10-24
影响因子：
16.6
通讯作者：
Huber JA
中科院分区：
文献类型：
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作者：
Anderson RE;Reveillaud J;Reddington E;Delmont TO;Eren AM;McDermott JM;Seewald JS;Huber JA
人们对深海热液喷口温暖海底下微生物种群的进化驱动因素知之甚少。在这里，我们重建73宏基因组组装的基因组（MAG）从两个地球化学不同的喷口领域在开曼群岛中部上升调查模式的基因组变异海底人口。低丰度人口与高种群内的多样性共存的高丰度人口与低基因组多样性，与分类差异的模式之间的基性皮卡德和超基性冯达姆喷口领域的基因组变异。来自Piccard的群体显著富集非同义突变，表明Von Damm相对于Piccard具有更强的纯化选择。9 Sulfurovum MAG的比较揭示了两个高覆盖率，低多样性的MAG从皮卡德丰富的独特的基因相关的细胞膜，这表明这些人群受到不同的进化压力，可能与营养吸收，生物膜形成，或病毒入侵的基因相关。这些结果是一致的地球化学不同的喷口领域之间的独特的进化历史，了解海底下的微生物种群的进化过程的影响。深海热液喷口温暖的海底下有各种微生物群落。在这里，安德森等人从两个地球化学上不同的热液喷口区重建了73个宏基因组组装的基因组，显示了不同微生物分类群之间基因组变异的不同模式。
Little is known about evolutionary drivers of microbial populations in the warm subseafloor of deep-sea hydrothermal vents. Here we reconstruct 73 metagenome-assembled genomes (MAGs) from two geochemically distinct vent fields in the Mid-Cayman Rise to investigate patterns of genomic variation within subseafloor populations. Low-abundance populations with high intra-population diversity coexist alongside high-abundance populations with low genomic diversity, with taxonomic differences in patterns of genomic variation between the mafic Piccard and ultramafic Von Damm vent fields. Populations from Piccard are significantly enriched in nonsynonymous mutations, suggesting stronger purifying selection in Von Damm relative to Piccard. Comparison of nine Sulfurovum MAGs reveals two high-coverage, low-diversity MAGs from Piccard enriched in unique genes related to the cellular membrane, suggesting these populations were subject to distinct evolutionary pressures that may correlate with genes related to nutrient uptake, biofilm formation, or viral invasion. These results are consistent with distinct evolutionary histories between geochemically different vent fields, with implications for understanding evolutionary processes in subseafloor microbial populations. The warm subseafloor at deep-sea hydrothermal vents hosts diverse microbial communities. Here, Anderson et al. reconstruct 73 metagenome-assembled genomes from two geochemically distinct hydrothermal vent fields, showing different patterns of genomic variation among diverse microbial taxa.
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影响因子：
16.6
作者：
Hodgkinson MR;Webber AP;Roberts S;Mills RA;Connelly DP;Murton BJ
通讯作者：
Murton BJ
影响因子：
56.9
作者：
CAVANAUGH, CM;GARDINER, SL;WATERBURY, JB
通讯作者：
WATERBURY, JB
DOI：
10.1073/pnas.1009205107
发表时间：
2010-08-10
影响因子：
11.1
作者：
German, C. R.;Bowen, A.;Yoerger, D. R.
通讯作者：
Yoerger, D. R.
影响因子：
4.4
作者：
Huber, JA;Butterfield, DA;Baross, JA
通讯作者：
Baross, JA
影响因子：
16.6
作者：
通讯作者：
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