A 20 × 103‐base mosaic gene identified on the mitochondrial chromosome of Podospora anserina

Abstract
By DNA sequencing and hybridization experiments the genes cob and col on the mitochondrial chromosome of P. anserina were localized. The positions determined for these 2 genes are different from those previously attributed to them. The presence in the gene col of at least 2 introns, belonging, respectively, to class I and II, was demonstrated. This gene, with a size of .apprx. 20 .times. 103 bases, appears to be the longest known mitochondrial mosaic gene.