The Azotobacter vinelandii Genome: An Update
The Azotobacter vinelandii Genome: An Update
复制标题
DOI：
10.1002/9781119053095.ch22
复制
发表时间：
2015-07
期刊：
影响因子：
--
通讯作者：
J. Setubal;N. F. Almeida
中科院分区：
文献类型：
--
作者：
J. Setubal;N. F. Almeida
棕色固氮菌是研究固氮、铁硫簇、藻酸盐生物合成和孢囊形成的重要模式生物。A. vinelandiiDJ于2009年出版。在这一章中，我们提出了更新和扩展的信息，这个基因组。我们提出了一个新的pseudomonadaceae，考虑到自2009年以来已发表的全基因组测序。这份研究报告与先前发表的研究报告一致，但更为详细。我们研究了固氮相关基因在A. vinelandiDJ，结论是它们最有可能遗传自与施氏假单胞菌和特纳氏Teredinibacter turnerae共有的祖先。我们推测，一个水平的基因转移事件，包括固氮基因可能发生在γ-变形杆菌的祖先和β-变形杆菌的祖先。最后，我们提供了关于A中存在II组内含子和CRISPR基因的信息。vinelandiDJ基因组。
Azotobacter vinelandiiis an important model organism for the study of nitrogen fixation, iron‐sulfur clusters, alginate biosynthesis, and cyst formation. The complete genome ofA. vinelandiiDJ was published in 2009. In this chapter we present updated and expanded information for this genome. We present a new phylogeny ofpseudomonadaceaethat takes into account fully sequenced genomes that have been published since 2009. This phylogeny is in agreement with a previously published phylogeny but is more detailed. We investigate the origin of nitrogen fixation‐related genes inA. vinelandiiDJ, concluding that they were most likely inherited from an ancestor shared withPseudomonas stutzeriandTeredinibacter turnerae. We hypothesize that a horizontal gene transfer event including nitrogen fixation genes may have happened between a Gammaproteobacterium ancestor and a Betaproteobacterium ancestor. We conclude by providing information on the presence of group II introns and CRISPR genes in theA. vinelandiiDJ genome.