Genomic Diversity in the Endosymbiotic Bacterium Rhizobium leguminosarum.
Genomic Diversity in the Endosymbiotic Bacterium Rhizobium leguminosarum.
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DOI：
10.3390/genes9020060
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发表时间：
2018-01-24
期刊：
影响因子：
3.5
通讯作者：
Imperial J
中科院分区：
文献类型：
--
作者：
Sánchez-Cañizares C;Jorrín B;Durán D;Nadendla S;Albareda M;Rubio-Sanz L;Lanza M;González-Guerrero M;Prieto RI;Brito B;Giglio MG;Rey L;Ruiz-Argüeso T;Palacios JM;Imperial J
豆科根瘤菌BV.豌豆属(Viciae)是一种土壤α-蛋白细菌，它与豆科豆科不同的豆科植物建立了一种重氮共生关系。公共数据库中可获得的根瘤菌菌株基因组序列的数量正在不断增加，尽管来自根瘤菌基因组的完整、充分注释的基因组结构很少。在这项工作中，我们报道和分析了豆类根瘤菌的全基因组。Viciae UPM791。全基因组测序可以为促进共生相关过程的遗传特征提供新的见解，例如细菌对根际的适应，与其他细菌的有效竞争机制，以及与豆类建立复杂的信号对话的能力，在不触发植物防御的情况下进入根，并最终固定宿主内的氮。两株豆类根腐病菌全基因组序列的比较Viciae，3841和UPM791，强调了不同共生质粒的存在和共同的核心染色体。特定的基因组特征，如质粒含量或独特的调控，定义了这些内共生菌的不同生理能力。其中，菌株UPM791对固氮过程中产生的氢气具有独特的适应性。
Rhizobium leguminosarum bv. viciae is a soil α-proteobacterium that establishes a diazotrophic symbiosis with different legumes of the Fabeae tribe. The number of genome sequences from rhizobial strains available in public databases is constantly increasing, although complete, fully annotated genome structures from rhizobial genomes are scarce. In this work, we report and analyse the complete genome of R. leguminosarum bv. viciae UPM791. Whole genome sequencing can provide new insights into the genetic features contributing to symbiotically relevant processes such as bacterial adaptation to the rhizosphere, mechanisms for efficient competition with other bacteria, and the ability to establish a complex signalling dialogue with legumes, to enter the root without triggering plant defenses, and, ultimately, to fix nitrogen within the host. Comparison of the complete genome sequences of two strains of R. leguminosarum bv. viciae, 3841 and UPM791, highlights the existence of different symbiotic plasmids and a common core chromosome. Specific genomic traits, such as plasmid content or a distinctive regulation, define differential physiological capabilities of these endosymbionts. Among them, strain UPM791 presents unique adaptations for recycling the hydrogen generated in the nitrogen fixation process.
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DOI：
10.1093/bioinformatics/btp347
发表时间：
2009-08-01
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Assefa S;Keane TM;Otto TD;Newbold C;Berriman M
通讯作者：
Berriman M
影响因子：
2.9
作者：
Briegel A;Wong ML;Hodges HL;Oikonomou CM;Piasta KN;Harris MJ;Fowler DJ;Thompson LK;Falke JJ;Kiessling LL;Jensen GJ
通讯作者：
Jensen GJ
影响因子：
3.4
作者：
Albareda, Marta;Rodrigue, Agnes;Palacios, Jose
通讯作者：
Palacios, Jose
影响因子：
3.6
作者：
Chai, Y;Zhu, J;Winans, SC
通讯作者：
Winans, SC
影响因子：
1.7
作者：
Bankevich, Anton;Nurk, Sergey;Pevzner, Pavel A.
通讯作者：
Pevzner, Pavel A.