Ribosomal DNA spacer-length polymorphisms in barley: mendelian inheritance, chromosomal location, and population dynamics.

@article{SaghaiMaroof1984RibosomalDS,
  title={Ribosomal DNA spacer-length polymorphisms in barley: mendelian inheritance, chromosomal location, and population dynamics.},
  author={M A Saghai-Maroof and Khairy M. Soliman and Richard A. Jorgensen and R. W. Allard},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1984},
  volume={81 24},
  pages={8014-8}
}
Spacer-length (sl) variation in ribosomal RNA gene clusters (rDNA) was surveyed in 502 individual barley plants, including samples from 50 accessions of cultivated barley, 25 accessions of its wild ancestor, and five generations of composite cross II (CCII), an experimental population of barley. In total, 17 rDNA sl phenotypes, made up of 15 different rDNA sl variants, were observed. The 15 rDNA sl variants comprise a complete ladder in which each variant differs in length from adjacent… CONTINUE READING
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