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A kalilo-like linear plasmid in Louisiana field isolates of the pseudohomothallic fungus Neurospora tetrasperma.
- Source :
-
Current genetics [Curr Genet] 1994 Oct; Vol. 26 (4), pp. 336-43. - Publication Year :
- 1994
-
Abstract
- Two Louisiana strains of Neurospora tetrasperma contain a linear plasmid (LA-kalDNA) with a restriction map identical to the Hawaiian Neurospora intermedia senescence plasmid, kalDNA, but with termini 100 nucleotide pairs shorter. One of these strains also bore a circular plasmid similar to the Hawaiian circular plasmid Hanalei-2. One species probably acquired both plasmids from the other by horizontal transfer, at a time sufficiently distant for sequence divergence to take place. Many LA-kalDNA-bearing derivative strains senesced, but this plasmid does not guarantee senescence. Furthermore, LA-kalDNA does not insert into mtDNA. One senescent strain showed no LA-kalDNA. The plasmids are effectively transmitted via the pseudohomothallic sexual cycle. Single mating-type derivatives transmit plasmids maternally.
Details
- Language :
- English
- ISSN :
- 0172-8083
- Volume :
- 26
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Current genetics
- Publication Type :
- Academic Journal
- Accession number :
- 7882428
- Full Text :
- https://doi.org/10.1007/BF00310498