Article
The 'rare allele phenomenon' in a ribosomal spacer.
Molecular ecology - 1 May 2001
Schilthuizen M, Hoekstra R F, Gittenberger E
Abstract excerpt
We describe the increased frequency of a particular length variant of the internal transcribed spacer 1 (ITS-1) of the ribosomal DNA in a hybrid zone of the land snail Albinaria hippolyti. The phenomenon that normally rare alleles or other markers can increase in frequency in the centre of hybrid zones is not new. Under the term 'hybrizyme' or 'rare allele' phenomenon it has been recorded in many organisms and...
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