Eight new loci have been assigned to sheep Chromosome (Chr) 1q by use of a chromosomally characterized minipanel of sheep x hamster cell hybrids. Four loci, which have been mapped to the distal region of human Chr 3q, are ceruloplasmin (CP), sucrase isomaltase (SI), glucose transporter 2 (GLUT2), an
Four loci from human Chromosome 1 are physically assigned to sheep Chromosome 1p
β Scribed by T. E. Broad; D. J. Burkin; L. M. Cambridge; M. A. Carpenter; C. Jones
- Publisher
- Springer-Verlag
- Year
- 1995
- Tongue
- English
- Weight
- 301 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0938-8990
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β¦ Synopsis
Phosphoglucomutase 1 (PGM1), thyroid stimulating hormone beta (TSHB), and urate oxidase (UOX) were newly assigned to sheep Chromosome (Chr) lp by Southern hybridization to DNA from a minipanel of sheep x hamster cell hybrids. The location of antigen CD3, zeta polypeptide (CD3Z) on sheep Chr lp was confirmed with the same cell hybrids. These assignments support the suggestion that sheep Chr lp and its cattle homolog Chr 3 were derived from a chromosomal segment with linkage homology to a large region of human Chr 1.
Sheep Chr lp comprises about 5% of the sheep genome (Matejka and Cribiu 1987) but has few loci physically assigned to it, reflecting the influence of the cattle gene map on the mapping of the sheep genome. Thus, the cattle map, as of April 1993, showed no loci assigned to cattle Chr 3 (Fries et al. 1993), which is the banded homolog of sheep Chr lp (ISCNDA 1989(ISCNDA [1990]]). Only one of the 107 loci on the sheep genome had been mapped on sheep Chr lp by the end of June 1993 (see Echard et al. 1994). The
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