Effects on adaptedness of variations in ribosomal DNA copy number in populations of wild barley (Hordeum vulgare ssp. spontaneum).

doi:10.1073/pnas.87.22.8741

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Article

Effects on adaptedness of variations in ribosomal DNA copy number in populations of wild barley (Hordeum vulgare ssp. spontaneum).

Proceedings of the National Academy of Sciences of the United States of America - 1 Nov 1990

Zhang Q F, Saghai Maroof M A, Allard R W

Abstract excerpt

Twenty alleles, 12 at Mendelian locus Rrn1 and 8 at locus Rrn2, control rRNA genes [ribosomal DNA (rDNA)] variability in barley. These alleles differ strikingly in their effects on adaptedness. In the present study, we determined variation in the copy number of 101 accessions of wild barley plant...

Topics

Alleles
DNA, Ribosomal
Ecology
Hordeum
Israel

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