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The evolution of microbial defense systems
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Just as we have evolved an immune system to defend against disease-causing bacteria and other pathogens, bacteria themselves are under constant pressure from parasites and have, thus, evolved their own defense systems. A recent study takes a closer look at the genes involved in these systems, particularly the rate of gene gains and losses. A widely discussed concept among evolutionary biologists is that of an ‘evolutionary arms race’ – organisms (and their genes) in a constant struggle to out-compete each other. A parasite evolves a new tactic to infect its host. The host, in turn, evolves a new defensive strategy to protect itself. The parasite responds with another novel tactic. Presumably, this never-ending loop results in rapid genetic change in both participants. But this may not be the case for all bacteria. The evolution of bacterial and archaeal genomes is a highly dynamic process involving gene gains, losses, and duplications..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
02/25/2021