Author:
Brickner Jason H,Lynch Timothy J,Zeilinger Dawn,Orias Eduardo
Abstract
Abstract
Using the random amplified polymorphic DNA (RAPD) technique and exploiting the unique genetics of Tetrahymena themnophila, we have identified and characterized 40 DNA polymorphisms occurring between two inbred strains (B and C3) of this ciliated protozoan. These RAPD markers permit the PCR amplification of a DNA species using template DNA from SB1969 (B strain) but fail to do so using DNA from C3-368-5 (C3 strain). Polymorphisms were mapped to chromosomes using a panel of monosomic strains constructed by crossing B strainderived nullisomic strains to inbred strain C3. They map to all five chromosomes and appear to be evenly distributed throughout the genome. Chromosomal groups were then analyzed for linkage using meiotic segregants; four linkage groups were identified in chromosomes IR, 2L, 3 and 5. The RAPD method appears useful for the construction of a genetic map of the Tetrahymena genome based on DNA polymorphisms.
Publisher
Oxford University Press (OUP)
Cited by
17 articles.
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