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Linkage group chromosome correlation in podospora anserina



Linkage group chromosome correlation in podospora anserina



Molecular & General Genetics 175(3): 359-368



Two reciprocal translocations were studied in an attempt to establish a 1 to 1 assignment of the 7 linkage groups of P. anserina to specific chromosomes. Genetic data demonstrated clearly the relationships of the 2 translocations with 3 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 2 translocations had 1 chromosome in common. The correspondence of the 3 largest chromosomes, including the 1 bearing the nucleolar organizer, with 3 well-known linkage groups was thus established. Evidence is also given that loci exhibiting a percentage of 2nd division segregation as high as 98% are not at the end of the chromosomes.

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Accession: 005813696

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