Transduction:
Transduction is the process by which foreign DNA is introduced into a cell by a virus or viral vector. An example is the viral transfer of DNA from one bacterium to another and hence an example of horizontal gene transfer. Transduction does not require physical contact between the cell donating the DNA and the cell receiving the DNA (which occurs in conjugation), and it is DNase resistant (transformation is susceptible to DNase). Transduction is a common tool used by molecular biologists to stably introduce a foreign gene into a host cell’s genome (both bacterial and mammalian cells). [Wikipedia]
Noted in “This coronavirus mutation has taken over the world. Scientists are trying to understand why,” Sarah Kaplan and Joel Achenbach, WaPo:
Neville Sanjana, a geneticist at the New York Genome Center and New York University, was trying to figure out which genes enable SARS-CoV-2 to infiltrate human cells. But in experiments based on a gene sequence taken from an early case of the virus in Wuhan, he struggled to get that form of the virus to infect cells. Then the team switched to a model virus based on the G variant.
“We were shocked,” Sanjana said. “Voilà! It was just this huge increase in viral transduction.” They repeated the experiment in many types of cells, and every time the variant was many times more infectious.
