Genomic assignment of the warfarin resistance locus, Rw, in the rat

Genomic assignment of the warfarin resistance locus, Rw, in the rat The locus responsible for resistance to the anticoagulants warfarin and bromadiolone (locus symbol Rw) was integrated into the rat (Rattus norvegicus) microsatellite genome map. Seventh-generation offspring of a segregating strain of rats heterozygous resistant to both compounds were tested with a blood-clotting-response (BCR) test. No recombination between resistance to warfarin and bromadiolone was observed, indicating a common genetic basis. No recombinants were found between Rw and D1Arb18 (Myl2) located at the MIT-microsatellite map position 95.90 (SHRSP × BN F2-cross) or 82.24 (FHH × ACI F2-cross). Resistance segregated in a ratio expected for single, dominant gene responses. An equal number of females and males were resistant, but females retained higher percentage blood coagulation activities (PCA) after anticoagulant administration. Partial synteny between rat, mouse, and human suggests that Myl2 may serve as anchor to map the Rw homologs in mouse and human. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Genomic assignment of the warfarin resistance locus, Rw, in the rat

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Publisher
Springer Journals
Copyright
Copyright © 1999 by Springer-Verlag New York Inc.
Subject
Life Sciences; Cell Biology; Animal Genetics and Genomics; Human Genetics
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s003359901073
Publisher site
See Article on Publisher Site

Abstract

The locus responsible for resistance to the anticoagulants warfarin and bromadiolone (locus symbol Rw) was integrated into the rat (Rattus norvegicus) microsatellite genome map. Seventh-generation offspring of a segregating strain of rats heterozygous resistant to both compounds were tested with a blood-clotting-response (BCR) test. No recombination between resistance to warfarin and bromadiolone was observed, indicating a common genetic basis. No recombinants were found between Rw and D1Arb18 (Myl2) located at the MIT-microsatellite map position 95.90 (SHRSP × BN F2-cross) or 82.24 (FHH × ACI F2-cross). Resistance segregated in a ratio expected for single, dominant gene responses. An equal number of females and males were resistant, but females retained higher percentage blood coagulation activities (PCA) after anticoagulant administration. Partial synteny between rat, mouse, and human suggests that Myl2 may serve as anchor to map the Rw homologs in mouse and human.

Journal

Mammalian GenomeSpringer Journals

Published: Jul 1, 1999

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