Compensatory mutations reducing the fitness cost of plasmid carriage occur in plant rhizosphere communities
Compensatory mutations reducing the fitness cost of plasmid carriage occur in plant rhizosphere communities
复制标题
植物根际群落中发生降低质粒携带适应性成本的补偿性突变
DOI:
10.1101/2022.08.01.502293
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Bird S
中科院分区:
文献类型:
--
作者:
Bird S
Plasmids drive bacterial evolutionary innovation by transferring ecologically important functions between lineages, but acquiring a plasmid often comes at a fitness cost to the host cell. Compensatory mutations, which ameliorate the cost of plasmid carriage, promote plasmid maintenance in simplified laboratory media across diverse plasmid–host associations. Whether such compensatory evolution can occur in more complex communities inhabiting natural environmental niches where evolutionary paths may be more constrained is, however, unclear. Here, we show a substantial fitness cost of carrying the large conjugative plasmid pQBR103 inPseudomonas fluorescensSBW25 in the plant rhizosphere. This plasmid fitness cost could be ameliorated by compensatory mutations affecting the chromosomal global regulatory systemgacA/gacS, which arose rapidly in plant rhizosphere communities and were exclusive to plasmid carriers. These findings expand our understanding of the importance of compensatory evolution in plasmid dynamics beyond simplified lab media. Compensatory mutations contribute to plasmid survival in bacterial populations living within complex microbial communities in their environmental niche.
登录
查看更多内容
影响因子:
10.7
作者:
Kloos J;Gama JA;Hegstad J;Samuelsen Ø;Johnsen PJ
通讯作者:
Johnsen PJ
影响因子:
2.8
作者:
Hall, James P. J.;Wright, Rosanna C. T.;Brockhurst, Michael A.
通讯作者:
Brockhurst, Michael A.
影响因子:
4.4
作者:
Lilley, AK;Bailey, MJ
通讯作者:
Bailey, MJ
DOI:
10.1007/978-1-4939-0554-6_12
发表时间:
2014
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.3
作者:
Cheng, Xu;de Bruijn, Irene;Raaijmakers, Jos M.
通讯作者:
Raaijmakers, Jos M.