Summary
Two reciprocal translocations have been studied in an attempt to establish a one-to-one assignment of the seven linkage groups of P. anserina to specific chromosomes. Genetical data demonstrated clearly the relationships of the two translocations with three linkage groups. Cytological observations at meiosis in crosses heterozygous for the chromosomal interchanges showed the characteristic cross-like figures and confirmed the fact that the two translocations had one chromosome in common. The correspondence of the three largest chromosomes, including the one bearing the nucleolar organizer, with three well known linkage groups has thus been established. Evidence is also given that loci exhibiting a percentage of second division segregation as high as 98% are not at the end of the chromosomes.
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Communicated by W. Gajewski
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Simonet, JM., Zickler, D. Linkage group-chromosome correlation in Podospora anserina . Molec. gen. Genet. 175, 359–367 (1979). https://doi.org/10.1007/BF00397236
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DOI: https://doi.org/10.1007/BF00397236