While my computer's busy running K=12 admixture on batch 7, K=17 admixture on batch 1, some MClust experiments and converting 1000genomes data from vcf to ped and I am reeling from the pollen count (3,939 yesterday), here are some links to my personal genetics blogging.
- Genome Similarity: Why is it that every non-South Asian in my 23andme share list is more similar to all other South Asians than to me?
- Doug McDonald Ancestry Analysis: I have African ancestral contribution.
- McDonald Ancestry Analysis II: Bushman or Pygmy, you must be kidding!! Or my sister's weirder than me!
- Dodecad Ancestry Project: Who are you, DOD296 and DOD384?
- Dodecad Project II: Dienekes calls me an outlier.
- Eurogenes: No Pathan jokes please!
- My Harappa Project Results: Compare my sister and me.
- Harappa Clustering: Some nice-looking dendrograms.
- Punjabi and What? I abuse statistics and Harappa Punjabis' admixture results.
For the record, my daughter complains about all the "Trantor windows" open on the computer all the time. She calls the terminal windows "Trantor" because of the shell prompt. My desktop is named Trantor. Now who can guess what my laptop, my other desktop and my wireless network are named?
Terminus? Anacreon? Helicon?
Better not be something like like Aurora or Gaia. The sooner all mentions of books four and five are deleted from the Encyclopedia Galactica and forgotten, the better.
Terminus, though I have to admit I used to have a computer named Gaia.
asimov
Yeah, I score better with Iranians and the (1/2) Roma (1/2) Serbian individual than I do with you, despite you being closer home. Is your Egyptian ancestry really pulling you away from South Asia that much?
Same here - 73.20% share with Zack. On my list only the Japanese, Chinese, and Nigerian person trail that figure! Probably due to the minimal overlap between South Asians and SW Asians.
The interesting and weird thing is not that my similarity percentages are low, it is that if you pick the Nigerian person for example your similarity score will be higher with him/her than my similarity score with that person.
If you go into the Compare Genes-> one to many of 23andme and note down your similarity percentages with everyone. Now click on my name and note down how similar I am to everyone on your list. Compare the two.
Yes, I had checked that based on you comment - "true for similarity measures between me and all non-South Asians vs similarity measures between that non-South Asian and all South Asians."
Very possible that some component not seen in anyone being compared, including Africans such as the Nigerian person, is throwing all your numbers off.
On my 23andme chart, these differences reduce slightly as we move towards west asia.