Raw genetic data: Plink and TPED file

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SUMMARY

The discussion centers on analyzing raw genetic data from a dog's genome, specifically using a .TPED file containing 200,000 base pairs across 41 chromosomes. Participants suggest utilizing PLINK software for analysis and propose visualizing the data through karyotypes. They emphasize the importance of comparing the dog's genome to a reference genome to identify significant genetic differences and their potential impact on behavior.

PREREQUISITES
  • Understanding of .TPED file format and its usage
  • Familiarity with PLINK software for genetic data analysis
  • Basic knowledge of karyotype visualization techniques
  • Awareness of genomic mapping and allele comparison
NEXT STEPS
  • Research how to visualize genetic data using karyotypes
  • Learn to use PLINK for genetic data analysis and interpretation
  • Explore existing genetic maps of dog genomes for comparison
  • Investigate the relationship between dog breeds, genetics, and behavior
USEFUL FOR

Dog owners, geneticists, bioinformaticians, and researchers interested in canine genetics and behavior analysis.

DaveC426913
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Well I just checked out my boy's breed of dog. Not what we expected...But the analysis came with some raw data, 200,000 base pairs on ... 41 chromosomes. They're in a .TPED file, which can be opened in Excel. Apparently, it an also be analyzed using PLINK software.

Wondering what I can do to visualize this data in a poster or something.

I mean, I could do it myself manually, but are there any existing options?

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Have you considered making making a karyotype?

This will make far more sense to most people, kind of intuitive.
This is what karyorypes look like:
https://learn.genetics.utah.edu/content/basics/karyotype
Assuming your data is presented as chromosome groups - DNA from one chromosome, then the next.

Write come code to aggregate the data into 41 linear blobs. Add a "centromere as a wider dummy blob" somewhere in the middle of each "chromosome".

Sort of free form art based on real data.
 
jim mcnamara said:
Have you considered making making a karyotype?
Sure.
jim mcnamara said:
Write come code to aggregate the data into 41 linear blobs. Add a "centromere as a wider dummy blob" somewhere in the middle of each "chromosome".
I think my coding days are behind me.
 
There are probably already genetic maps and chromosomal pictures of dog genome available some where.
It might be interesting to know what are the major differences in your dog's genome vs. "normal", and then mapping them to the already known dog genome.
If lots of them map to a single location, maybe its something like a deletion (exciting!).

A list of predicted features your dog might have, based on its molecularly identified alleles that differ from "normal", would be interesting to compare with the dog's actual behaviors.
A big article on how much a dog or its breed influences its behavior and how that compares to the dog's genetic make-up: (https://www.physicsforums.com/threads/big-article-on-dog-breeds-in-science.1014733/).
They have looked at lots of behaviors and compared them with breed and genomic sequence.
That would probably be a good step on the way to a better genetic understanding of your dog.
 

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