Highly repeated DNA sequence limited to knob heterochromatin in maize - PubMed (original) (raw)
Highly repeated DNA sequence limited to knob heterochromatin in maize
W J Peacock et al. Proc Natl Acad Sci U S A. 1981 Jul.
Abstract
A highly repeated DNA sequence has been isolated from the maize genome as a satellite in actinomycin D/CsCl gradients. By using maize stocks differing in their heterochromatin content we have established that the sequence is a major constituent of one class of heterochromatin, knob heterochromatin, which can occur at 23 locations in the chromosome complement. The repeating unit, of 185 base pairs, has been cloned in plasmid pBR322 and its nucleotide sequence has been determined. The presence of this DNA sequence in knob heterochromatin and its absence from centromeric, nucleolar, and B chromosome heterochromatin parallels the cytogenetic differentiation previously described for these classes of heterochromatin in maize. Because knob heterochromatin has a distinctive cytological appearance and is unique in showing neocentric activity at meiosis, its association with a particular repeated DNA sequence may reflect a functional role for the sequence in the cell cycle.
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References
- J Biol Chem. 1979 Jun 25;254(12):5506-14 - PubMed
- Methods Enzymol. 1979;68:75-90 - PubMed
- Proc Natl Acad Sci U S A. 1977 Feb;74(2):560-4 - PubMed
- J Mol Biol. 1977 May 5;112(1):31-47 - PubMed
- Nature. 1972 Jan 7;235(5332):30-2 - PubMed
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