[Genetic control of chromosomal behavior during meiosis].

A review concerned with the problem of genetic control of chromosome behaviour in meiosis. Descriptions are given for mutations switching off the process of meiosis as a whole, mutations switching off only the II meiotic division, and mutations blocking individual phenomena, such as pairing of homologous chromosomes, crossing-over, segregation of chromosomes and cytokinesis. Mechanisms of the action of different genes affecting the same process may be quite different. Natural variations of meiosis in heteromorphic sexes, parthenogenetic animal species and apomictic plant species are considered from the viewpoint of blocking individual steps of meiosis. Some problems of general genetics are discussed for which meiotic mutations might be of great value.