scholarly journals Horizontal Transfer of Domains in ssrA gene Among Enterobacteriaceae

2021 ◽  
Author(s):  
Tamilmaran Nagarajan ¹ ◽  
Ramamoorthy Sankaranarayanan ¹ ◽  
Punitha Selvakumar ◽  
M. Hussain Munavar Munavar
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Horizontal Transfer ◽  
Messenger Rna ◽  
Recombination Detection Program ◽  
Recognition Sites ◽  
Detection Program ◽  
Functional Relevance ◽  
High Level

Abstract BackgroundThe tmRNA (transfer messenger RNA), encoded by ssrA gene, is involved in rescuing of stalled ribosomes by a process called trans-translation. Additionally, regions of the ssrA gene act as recognition sites for various integrases. Variations in ssrA genes were widely reported among the members of Enterobacteriaceae, but the functional relevance in the course of evolution are not well understood. In this study, we investigated the horizontal gene transfer of tmRNA among the members of Enterobacteriaceae. Methods and ResultsHorizontal gene transfer in tmRNA was found by predicting recombination signals in the tmRNA belong to Enterobacteriaceae using recombination detection program (RDP5). Our results revealed 7 recombination signals in tmRNA among different species. We further showed that the recombination signals was more in the domains present in the 3’ end than the domains in the 5’ end of tmRNA. Of note, the mRNA region, which codes for the peptide tag was reported in many recombination signals. Further, members belonging to genera Yersinia, Erwinia, Dickeya, and Enterobacter were highly represented in the recombination signatures.Conclusions Taken together, our results revealed a high level of recombination among specific regions of tmRNA of Enterobacteriaceae and suggest the possible role of recombination in the diversification of SsrA function in proteolysis and other pathways.

scholarly journals Horizontal Gene Transfer Involving Chloroplasts

2021 ◽  
Vol 22 (9) ◽  
pp. 4484
Author(s):  
Ewa Filip ◽  
Lidia Skuza
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Driving Force ◽  
Genetic Material ◽  
Adaptive Significance ◽  
Chloroplast Genomes ◽  
Organelle Genomes ◽  
Number Of Genes ◽  
Cellular Compartments

Horizontal gene transfer (HGT)- is defined as the acquisition of genetic material from another organism. However, recent findings indicate a possible role of HGT in the acquisition of traits with adaptive significance, suggesting that HGT is an important driving force in the evolution of eukaryotes as well as prokaryotes. It has been noted that, in eukaryotes, HGT is more prevalent than originally thought. Mitochondria and chloroplasts lost a large number of genes after their respective endosymbiotic events occurred. Even after this major content loss, organelle genomes still continue to lose their own genes. Many of these are subsequently acquired by intracellular gene transfer from the original plastid. The aim of our review was to elucidate the role of chloroplasts in the transfer of genes. This review also explores gene transfer involving mitochondrial and nuclear genomes, though recent studies indicate that chloroplast genomes are far more active in HGT as compared to these other two DNA-containing cellular compartments.

Role of Horizontal Gene Transfer in Evolution of the Plant Genome

2019 ◽  
pp. 291-314
Author(s):  
Nageswara Rao Reddy Neelapu ◽  
Malay Ranjan Mishra ◽  
Titash Dutta ◽  
Surekha Challa
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Plant Genome

The role of horizontal gene transfer in the evolution of trophic mechanisms across the eukaryotes

2009 ◽  
Vol 153 (2) ◽  
pp. S165
Author(s):  
Tom Richards ◽  
Darren M. Soanes ◽  
Peter G. Foster ◽  
Guy Leonard ◽  
Nicholas J. Talbot
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer

scholarly journals Beyond horizontal gene transfer: the role of plasmids in bacterial evolution

2021 ◽  
Author(s):  
Jerónimo Rodríguez-Beltrán ◽  
Javier DelaFuente ◽  
Ricardo León-Sampedro ◽  
R. Craig MacLean ◽  
Álvaro San Millán
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Bacterial Evolution

scholarly journals Extensive Phenotypic Changes Associated with Large-scale Horizontal Gene Transfer

2013 ◽  
Author(s):  
Kevin Dougherty ◽  
Brian A Smith ◽  
Autum F Moore ◽  
Shannon Maitland ◽  
Chris Fanger ◽  
...  
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Horizontal Transfer ◽  
Large Scale ◽  
Pseudomonas Stutzeri ◽  
Transfer Event ◽  
Small Plasmid ◽  
Phenotypic Changes ◽  
Evolutionary Trajectories ◽  
Evolutionary Consequences

Horizontal gene transfer often leads to phenotypic changes within recipient organisms independent of any immediate evolutionary benefits. While secondary phenotypic effects of horizontal transfer (i.e. changes in growth rates) have been demonstrated and studied across a variety of systems using relatively small plasmid and phage, little is known about how size of the acquired region affects the magnitude or number of such costs. Here we describe an amazing breadth of phenotypic changes which occur after a large-scale horizontal transfer event (~1Mb megaplasmid) within Pseudomonas stutzeri including sensitization to various stresses as well as changes in bacterial behavior. These results highlight the power of horizontal transfer to shift pleiotropic relationships and cellular networks within bacterial genomes. They also provide an important context for how secondary effects of transfer can bias evolutionary trajectories and interactions between species. Lastly, these results and system provide a foundation to investigate evolutionary consequences in real time as newly acquired regions are ameliorated and integrated into new genomic contexts.

Sign in / Sign up

Export Citation Format

Share Document