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Additional mapping of mouse chromosome 2 genes.
1Department of Surgery, St. Louis University School of Medicine, MO 63110-0250.
Immunogenetics
|January 1, 1991
Summary
Researchers mapped genes on mouse chromosome 2 using congenic strains and recombination frequencies. They determined the order of several genetic markers, refining the genetic map of mouse chromosome 2.
Area of Science:
- Genetics
- Immunology
- Mammalian Genetics
Background:
- Mouse chromosome 2 harbors genes crucial for various biological functions.
- Understanding the genetic fine structure aids in disease research and gene mapping.
Purpose of the Study:
- To elucidate the genetic fine structure of the central portion of mouse chromosome 2.
- To establish the order and recombination frequencies of several marker genes.
Main Methods:
- Production of seven chromosome 2 congenic mouse strains.
- Breeding studies to determine recombination frequencies between marker genes.
- Immunological typing using monoclonal antibodies for specific loci.
Main Results:
- Recombination frequencies were calculated for pa-we (1.9%), we-un (8.8%), and un-at (4.5%).
- A recombinational event separated the [pa, B2m, H-3] cluster from we.
- Hd-1 was mapped distal to [H-42, H-44] and proximal to un.
Conclusions:
- The data indicate a gene order of [pa, B2m, H-3], we, [H-42, H-45], Hd-1, un, H-13, at.
- This refined genetic map enhances the understanding of mouse chromosome 2 organization.