Related Experiment Video
Updated: Jun 28, 2025
07:24
Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
Published on: February 10, 2023
1.5K
Genetic characterization of a captive marmoset (Callithrix jacchus) colony using genotype-by-sequencing
Shelley A Cole1,2, Martha M Lyke1,2, Clinton Christensen1,2
1Southwest National Primate Research Center, San Antonio, Texas, USA.
American Journal of Primatology
|April 24, 2024
Summary
Genotyping marmosets using hair follicle DNA effectively verifies pedigrees and manages colonies. This method identifies genetic variations for developing new biomedical research models.
Area of Science:
- Primate genetics
- Nonhuman primate models
- Comparative genomics
Background:
- Marmosets are crucial models for aging and neurobiology research.
- Captive marmoset colony management is challenging due to chimerism and limited genetic tools.
- Historical population movements complicate accurate pedigree tracking.
Purpose of the Study:
- To genetically characterize the Southwest National Primate Research Center (SNPRC) marmoset population.
- To verify pedigrees and improve genetic management of the marmoset colony.
- To identify single-nucleotide variants (SNVs) for biomedical research applications.
Main Methods:
- Genotype-by-sequencing (GBS) was performed on DNA from marmoset hair follicles.
- Hair follicle DNA was chosen as a minimally chimeric tissue source.
- Genetic data from 82 marmosets were analyzed for population characterization.
Main Results:
- The study successfully reconstructed the genetic legacy of colony mergers.
- Genetically related animals with unknown relationships were identified.
- The SNPRC marmoset colony exhibited low levels of inbreeding.
- Over 99,000 single-nucleotide variants (SNVs) were identified, with >9800 in clinically relevant human gene regions.
Conclusions:
- Sparse genotyping using hair follicle DNA is effective for marmoset colony genetic management.
- This approach aids in identifying potential SNVs for developing biomedical research models.
- The findings provide valuable genetic insights into this important primate resource.
