After revising some evolutionary concepts, I stumbled on the "big five" of evolution (e.g., mutation, selection, mating, genetic drift, gene flow). I wanted to understand if mating as in "bacterial mating" or gene transfer using a pilus could be thought as assortative or disassortative mating.
Perhaps it could be thought only as gene flow if introduced in novel populations, but I was intrigued by the fact that if 2 bacteria are dissimilar in their plasmid, and they exchange DNA, then they would be disassortatively mating.
Perhaps, the definition of assortative mating (on wikipedia) is not including bacteria when saying:
[It] is a mating pattern and form of sexual selection in which individuals with similar phenotypes mate with one another more frequently than would be expected under a random mating pattern.