1
$\begingroup$

Also posted on biostars

While I was searching the genomes of some eukariotic organisms (fungi,plants,protists) even though I knew that they had mitochondrial DNA,when I searched their genome structure I couldn't find any "chromosome" labeled as "mtDNA". Here I give some links of genomes that show this: https://www.ncbi.nlm.nih.gov/genome/gdv/browser/genome/?id=GCF_016861865.1 https://www.ncbi.nlm.nih.gov/genome/gdv/browser/genome/?id=GCF_009556855.1

Why does this happens? How can I find if the mtDNA sequence is inluded in these "chromosomes"?

Improve this question
$\endgroup$
1

1 Answer 1

Reset to default
1
$\begingroup$

The most obvious answer is wet-lab rather than bioinformatics: mtDNA can get removed in the DNA extraction process. As a control group, in bacterial drug-resistance studies the plasmids are frequently lost. mtDNA at ~15KB is smaller than a regular bacterial plasmid.

On the bioinformatics front there would be an issue about reference genome assemblies as well, i.e. if mtDNA genome isn't present then it will not appear as a separate genome.

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.