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  • 1
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Various genes that mapped to the distal end of Chromosome (Chr) 10 were considered as possible candidates for the mouse pygmy (pg) locus. Probes derived from Ifg, Gli, Mdm1, Mdm2 and Mdm3 (Mdm2 and Mdm3 are genes that are coamplified with Mdm1 on the same double minute chromosomes in 3T3DM cells) were used for Southern analysis of DNA from wild-type mice and various pg mutants. In addition, the chromosomal locations of Ifg, Gli, Mdm1, Mdm2, and Mdm3 were determined by interspecific backcross analysis with progeny derived from matings of [(C57BL/6J x Mus spretus)F1 x C57BL/6J] mice. The mapping data indicate that the Mdm loci are linked to each other and to Ifg, pg, and Gli in the distal region of mouse Chr 10. Both the mapping data and the Southern analysis confirm that mdm1, Mdm2, Mdm3, Ifg, and Gli are distinct from pg.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Mammalian genome 6 (1995), S. 697-699 
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The autosomal recessive mouse mutation, germ cell dificient, gcd, manifests as infertility in both sexes owing to improper migration and/or proliferation of primordial germ cells during embryonic development. Mice harboring this mutation have been hypothesized to be animal models of the human syndromes, premature ovarian failure and Sertoli cell only syndrome. Since the gcd mutation arose from the insertion of over 100 kb of foreign DNA into the chromosome during a transgenic mouse experiment, fluorescent in situ hybridization with the transgene as a probe was used to determine the chromosomal position of the gcd locus. DAPI chromosomal banding in conjunction with double labeling with the α1(I) collagen gene revealed that the gcd locus is situated on mouse Chromosome (Chr) 11A2–3. Two candidate genes, Lif and Oncostatin M, map near the gcd locus; however, Southern blot hybridization analysis revealed no gross rearrangements in these genes in gcd mice. The chromosomal position of the gcd locus will prove valuable in the search for other candidate genes as well as a landmark for positional cloning experiments.
    Type of Medium: Electronic Resource
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