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Plant Mol Biol. 1993 Jun;22(3):543-5.

Intraspecific length heterogeneity of the rDNA-IGR in Arabidopsis thaliana due to homologous recombination.

Author information

1
Universit├Ąt Wien, Abteilung Cytologie und Genetik, Vienna, Austria.

Abstract

A new heterogeneity of the rDNA spacer of Arabidopsis thaliana, resulting from variation in copy number of the so-called 'C' repeat located downstream of the presumptive polymerase I promoter, is reported. Variation is shown to occur within and between ecotypes. PCR analysis and sequence comparison suggests that the observed length heterogeneity is due to homologous recombination.

PMID:
8329690
DOI:
10.1007/bf00015983
[Indexed for MEDLINE]

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