Hi everyone,
I need help to find out the list of all mtDNA genes of Indian origin in the d-loop control region of mtDNA. I searched for databases/tools that can help me find out a list of genes, but most of the mtDNA specific databases are not working or not updated, so I don't know exactly how I should proceed for this. Can anybody help?
Thanks in advance!
2 answers
I think you mean variants, not genes
The defining variants for haplogroup M, which is what most people on the Indian subcontinent fall into, are 489C, 10400T, 14783C, 15043A, 15301A
I think only 489C is in the D-loop. There are a bunch of variants that define subclades of M that also fall within the d-loop control region. I'm not sure what you are looking for but this page might help:
https://www.mitomap.org/foswiki/bin/view/MITOMAP/HaplogroupMarkers
D-loop is a non-coding region, so it does not contain genes. Most probably you are looking for mtDNA haplogroups defined with D-loop. Also, take into account that the geographic origin of most of the mtDNA lineages is not known, and the most frequent haplogroup in a population might not have originated in that population (could be a founder effect, genetic drift, selection, etc). So finding the haplogroups of Indian origin can be very speculative.
For the databases, as @Jeremy mentioned, MITOMAP is the most comprehensive one, you also have hmtdb https://www.hmtdb.uniba.it/ which has more functionality compared to MITOMAP, but it was updated almost a year ago. On the other hand, its always more reliable to go through papers from large scale projects, I am pretty sure there are some for India.
Log in to answer this question.
Do you expect different mitochondrial genes depending on the geographical origin?
Yes, mtDNA genes based on geographical origin as Indian, but genes from the d-loop region of mtDNA.
But there are many different haplotypes in India. What do you mean Indian origin?
I am not entirely sure but NCBI popset database (https://www.ncbi.nlm.nih.gov/popset) might also be of some help as well especially the advanced search filters. For example I searched haplogroup M (as mentioned by Jeremy) https://www.ncbi.nlm.nih.gov/popset?term=((((haplogroup%20M)%20AND%20india))%20AND%20haplogroup%20M)%20AND%20human%5BOrganism%5D