Related Experiment Videos
Characterization of porcine polymorphic microsatellite loci
W Coppieters1, A Van de Weghe, L Peelman
1Department of Animal Nutrition, Production and Ethology, Faculty of Veterinary Medicine, University of Ghent, Merelbeke, Belgium.
Animal Genetics
|June 1, 1993
Summary
Researchers developed 11 new microsatellite markers for pigs, useful for genetic studies. These markers show high polymorphism and Mendelian inheritance, with one locus identified as X-linked.
Area of Science:
- Animal Genetics
- Molecular Biology
- Genomics
Background:
- Microsatellites are valuable genetic markers in livestock.
- Developing polymorphic microsatellites is crucial for pig genetic research and breeding.
Purpose of the Study:
- To isolate and characterize new dinucleotide microsatellite markers from a pig genomic library.
- To establish optimal PCR conditions and assess the polymorphic potential of these markers for pig populations.
Main Methods:
- Isolation and sequencing of microsatellite clones from a size-selected pig genomic library.
- Design of flanking primers for 11 dinucleotide repeat loci.
- Optimization of polymerase chain reaction (PCR) amplification conditions.
- Screening of pigs for length polymorphisms and assessment of polymorphic information content (PIC).
Main Results:
- Twenty-nine microsatellite clones ((CA)n and (GA)n) were identified, with 11 selected for further analysis.
- Established PCR conditions for simultaneous amplification of multiple microsatellite loci.
- Polymorphic information content (PIC) ranged from 0.62 to 0.83, indicating high variability.
- Segregation analysis confirmed Mendelian inheritance for all loci.
- Locus S0022 was identified as X-linked.
Conclusions:
- Developed a set of 11 polymorphic microsatellite markers for pigs.
- These markers are suitable for genetic diversity studies, linkage analysis, and marker-assisted selection in pigs.
- The identification of an X-linked locus provides a valuable tool for sex determination and X-chromosome mapping in pigs.