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. 1988 Sep;10(5):413-22.
doi: 10.1007/BF00014947.

Proximity of an ARS consensus sequence to a replication origin of pea (Pisum sativum)

P Hernández  1 , C A Bjerknes, S S Lamm, J Van't Hof
Affiliations

Proximity of an ARS consensus sequence to a replication origin of pea (Pisum sativum)

P Hernández et al. Plant Mol Biol. 1988 Sep.

Abstract

The replication origin (ori-r9) of the 9.0 kb rDNA repeats of pea (Pisum sativum, cv. Alaska) was cloned and found to reside in a 1.5 kb fragment of the non-transcribed spacer region located between the 25 S and 18 S genes. Labeled rDNA rich in replication forks, from cells positioned at the G1/S phase boundary, was used to map ori-r9 by hybridization procedures. Ori-r9 is in a 210-base fragment that is 1.6 kb from the 5' end of the 18 S gene and about 1.5 kb from the 3' end of the 25 S gene. The same procedures, using labeled synthetic ARS consensus sequence as a probe, showed than an ARS consensus sequence is located 3' to ori-r9 in a 710-base fragment. An ARS consensus sequence is, therefore, adjacent to ori-r9 but not coincidental with it.

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References

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