title: Presence of several plasmids in the fungus Ascobolus immersus, and homologies with the linear plasmid pA1.
abstract: DNA analysis of several genetically unstable strains of the fungus Ascobolus immersus revealed the presence of at least seven different plasmids. These plasmids ranged from 2 to 20 kb in size, and showed homology to one of them, pA1. In 18 stocks directly isolated from nature, two-thirds harboured plasmids ranging from 3 to 17 kb. Plasmids with homology to pA1 had similar molecular masses (about 8.5 kb). A possible mechanism of plasmid formation from chromosomal DNA is discussed.
authors: Laboratoire de Biologie Expérimentale, Université de Paris XI, Orsay, France.
authors: F X
authors: FX
authors: Francou
authors: N
authors: N
authors: Randscholt
authors: B
authors: B
authors: Decaris
authors: A
authors: A
authors: Gregoire
mesh_terms: D001203:Ascomycota / Q000235:genetics*; D001483:Base Sequence; D004271:DNA, Fungal; D010957:Plasmids; D012689:Sequence Homology, Nucleic Acid
chemical_list: D004271:DNA, Fungal