Pseudocrossing over

Pseudocrossover is a phenomenon when, instead of the formation of heterotic or triploid forms, a spontaneous or induced change in already existing genotypes occurs. Typically, these changes lead to the appearance of new genes. By analogy with the term “crosspoint”, introduced by geneticist I.N. Meisner (A. Leitch and I. May), this process was called “pseudocrosspoint” or “pseudocrosspointer”.

In pseudocrossing, plots are exchanged between different members of the group, and each member becomes part of a larger group. As a result, the two original groups interbreed and form one new group. If the original group was BBB-BB-bbbb, and the second group was bbB-bBB, then after the pseudocross process all members of the group receive single chromosomes from both original groups: B-B-B; bbB-Bb; B-