Crossing-Over Between X and Y Chromosomes During Ribosomal DNA Magnification in Drosophila melanogaster
AUTOR(ES)
Ritossa, F.
RESUMO
In genetic combinations undergoing ribosomal DNA magnification, the frequency of crossing-over between X and Y chromosomes is increased at least 20-fold above that in similar combinations not undergoing magnification. Such recombination occurs at the ribosomal DNA level. The data are consistent with a model where extra copies of ribosomal DNA are formed which, after circularization, are integrated into the chromosome.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=433640Documentos Relacionados
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