ArticleMolecular & general genetics : MGG1995
Recombination between heterologous linear and circular mitochondrial plasmids in the fungus Neurospora.
Article in Molecular & general genetics : MGG, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 21 citations in OpenAlex.
- Article
- Hybrid mitochondrial plasmids from senescence suppressor isolates of Neurospora intermedia.Genetics · 2007Article
- Characterization of an unusual tRNA-like sequence found inserted in a Neurospora retroplasmid.Nucleic acids research · 2000Article
- Characterization of an unusual tRNA-like sequence found inserted in a Neurospora retroplasmid.Nucleic acids research · 2000Article
- Pankinetoplast DNA structure in a primitive bodonid flagellate, Cryptobia helicis.The EMBO journal · 1998Article
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Authors and funding
2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
A strain of Neurospora intermedia from China contains five prominent extragenomic mitochondrial plasmids: three linear elements called zhisi plasmids, and two circular plasmids, Harbin-1 and -2. In one subculture, levels of four plasmids (all three zhisis and Harbin-1) fell to undetectable values and two novel linear plasmids appeared, Harbin-L and -L2, as well as a new small circular plasmid, Harbin-0.9. Cross-hybridization of restriction fragments and DNA sequencing showed that the Harbin-L plasmid was composed of parts of the circular Harbin-1 plasmid and of one of the linear zhisi plasmids. A model is presented in which the Harbin-1 and zhisi plasmids are present within the same mitochondrion, and crossovers at two separate 7 bp sites of sequence identity effectively insert part of the circular Harbin-1 DNA into a zhisi linear plasmid, simultaneously deleting part of the zhisi element. The small plasmid Harbin-0.9 is a fragment of the Har-1 plasmid, and seems to be another product of the recombination process that created Har-L. Recombination of this type could have contributed to the wide array of mitochondrial plasmids found in natural populations of Neurospora.
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