Mitotic crossing over in chromosome I disomics of Aspergillus nidulans
- 1 March 1986
- journal article
- research article
- Published by Springer Nature in Molecular Genetics and Genomics
- Vol. 202 (3) , 382-387
- https://doi.org/10.1007/bf00333266
Abstract
The frequency and pattern of homologous recombination in chromsome I disomics of Aspergillus nidulans is presented. Approximately 6% of randomly selected haploid breakdown sectors are recombinant. Most of these arise from double exchange events, one of which is located in the centromere region, the other distal on the left arm. Other marked regions are rarely involved in a recombination event. Reciprocal genotypes arise in approximately equal frequencies indicating that exchange results in reciprocally recombined non-sister chromatids at the four strand stage of mitosis. Possible theories for the extreme localisation of exchange events are discussed.This publication has 21 references indexed in Scilit:
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