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Chromosome Pairing, Crossing Over, and Segregation in Meiosis in Drosophila melanogaster Females

1958; Cold Spring Harbor Laboratory Press; Volume: 23; Linguagem: Inglês

10.1101/sqb.1958.023.01.023

1943-4456

Tarvo Oksala,

Genetic Mapping and Diversity in Plants and Animals

The recombination of genetic material which is known as the phenomenon of crossing over was originally demonstrated and described in Drosophila melanogaster. And even now our understanding of the characteristics of this phenomenon, which has since been shown to be universal and fundamental, is essentially founded on Drosophila research. Thus the genetic maps of Drosophila melanogaster are still more accurate and complete than those of any other organism. As a result of intensive long-term research, the analysis of crossing over has made great progress. On the other hand, many problems are still unsolved. To say nothing of the fact that the fundamental cause of this exchange of material between homologous chromosomes is completely unknown and that even the mechanism of this phenomenon is still under discussion, Drosophila genetics contains a number of less basic problems whose solution is nevertheless important as a basis for a final attack on the...