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Protocol for genetic load analysis in caribou using a modified genomic evolutionary rate profiling
Rebecca S Taylor1, Micheline Manseau1, Peng Liu1
1Landscape Science and Technology, Environment and Climate Change Canada, Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
STAR Protocols
|May 11, 2025
Summary
This study introduces a new protocol to measure genetic load in caribou (Rangifer tarandus). The method uses a modified genomic evolutionary rate profiling (GERP) approach for enhanced genetic analysis.
Area of Science:
- Genomics
- Evolutionary Biology
- Conservation Genetics
Background:
- Understanding genetic load is crucial for assessing the health and adaptability of wild populations.
- Caribou (Rangifer tarandus) populations face various environmental pressures, making genetic health assessments important.
- Existing methods for genetic load analysis can be complex and time-consuming.
Purpose of the Study:
- To present a refined protocol for analyzing genetic load in caribou.
- To adapt the genomic evolutionary rate profiling (GERP) program for this specific application.
- To provide a streamlined method for extracting and analyzing genetic data relevant to evolutionary conservation.
Main Methods:
- Utilized a modified genomic evolutionary rate profiling (GERP) program.
- Developed automated procedures for multi-species alignment and generation of evolutionary conservation scores.
- Implemented a streamlined process for extracting derived alleles from variant calling format (VCF) files using three outgroup species.
Main Results:
- The protocol enables the measurement of genetic load by identifying conserved sites and derived alleles.
- The method facilitates efficient data processing for large genomic datasets.
- The described protocol provides a reproducible framework for genetic load analysis in caribou.
Conclusions:
- The presented protocol offers a robust and efficient method for assessing genetic load in caribou populations.
- This approach can aid in conservation efforts by providing insights into population genetic health.
- The modified GERP protocol is a valuable tool for evolutionary and conservation genetics research.
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