Community-like genome in single cells of the sulfur bacterium Achromatium oxaliferum.
Community-like genome in single cells of the sulfur bacterium Achromatium oxaliferum.
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DOI:
10.1038/s41467-017-00342-9
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发表时间:
2017-09-06
影响因子:
16.6
通讯作者:
Grossart HP
中科院分区:
文献类型:
--
作者:
Ionescu D;Bizic-Ionescu M;De Maio N;Cypionka H;Grossart HP
Polyploid bacteria are common, but the genetic and functional diversity resulting from polyploidy is unknown. Here we use single-cell genomics, metagenomics, single-cell amplicon sequencing, and fluorescence in situ hybridization, to show that individual cells of Achromatium oxaliferum, the world’s biggest known freshwater bacterium, harbor genetic diversity typical of whole bacterial communities. The cells contain tens of transposable elements, which likely cause the unprecedented diversity that we observe in the sequence and synteny of genes. Given the high within-cell diversity of the usually conserved 16S ribosomal RNA gene, we suggest that gene conversion occurs in multiple, separated genomic hotspots. The ribosomal RNA distribution inside the cells hints to spatially differential gene expression. We also suggest that intracellular gene transfer may lead to extensive gene reshuffling and increased diversity. The cells of Achromatium bacteria are remarkably large and contain multiple chromosome copies. Here, Ionescu et al. show that chromosome copies within individual cells display high diversity, similar to that of bacterial communities, and contain tens of transposable elements.
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影响因子:
7.5
作者:
Cornejo, Elias;Abreu, Nicole;Komeili, Arash
通讯作者:
Komeili, Arash
影响因子:
3.7
作者:
Ionescu D;Siebert C;Polerecky L;Munwes YY;Lott C;Häusler S;Bižić-Ionescu M;Quast C;Peplies J;Glöckner FO;Ramette A;Rödiger T;Dittmar T;Oren A;Geyer S;Stärk HJ;Sauter M;Licha T;Laronne JB;de Beer D
通讯作者:
de Beer D
影响因子:
48
作者:
Callahan BJ;McMurdie PJ;Rosen MJ;Han AW;Johnson AJ;Holmes SP
通讯作者:
Holmes SP
DOI:
10.1038/nrmicro3067
发表时间:
2013-08
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
Chandler M;de la Cruz F;Dyda F;Hickman AB;Moncalian G;Ton-Hoang B
通讯作者:
Ton-Hoang B
影响因子:
1.7
作者:
Bankevich, Anton;Nurk, Sergey;Pevzner, Pavel A.
通讯作者:
Pevzner, Pavel A.