Related Experiment Videos
Linkage map of 10 polymorphic markers on rat chromosome 2
H Zha1, R L Wilder, E A Goldmuntz
1Arthritis and Rheumatism Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892.
Cytogenetics and Cell Genetics
|January 1, 1993
Summary
Researchers mapped 10 DNA markers on rat chromosome 2, creating a linkage map useful for genetic studies. This map aids in understanding rat and human gene synteny and comparative genomics.
Area of Science:
- Genetics
- Genomics
- Molecular Biology
Background:
- Rat genetic mapping is crucial for understanding mammalian biology and disease.
- Developing polymorphic markers facilitates gene localization and comparative genomics.
Purpose of the Study:
- To construct a genetic linkage map for rat chromosome 2.
- To identify and characterize polymorphic markers for rat genetic studies.
Main Methods:
- Analysis of F2 intercross progeny from F344/N x LEW/N rats.
- Utilized PCR-typable markers, including those flanking dinucleotide repeats and anonymous markers.
- Designed primers based on GenBank sequences and sequenced cloned genomic DNA.
Main Results:
- Assigned 10 polymorphic markers to rat chromosome 2, forming a 47.9 cM linkage group.
- Established the order of markers: D2N1R-D2N28-FGG-PKLR-ATP1A1-HSD3B-D2N2R-D2N91-CAMKI-D2N35.
- Seven codominant markers showed high polymorphism across 10 inbred rat strains.
Conclusions:
- The established linkage map provides a valuable resource for rat genetic mapping.
- The identified markers are useful for general mapping studies in various rat strains.
- Comparative gene mapping revealed synteny conservation between rat chromosome 2 and human chromosome 1/mouse chromosome 3.