Blood Type Frequency Maps

5 Comments

1. Kela Parker April 8, 2021 Reply

   It looks like these are modern distribution of blood types; do you also have this same type of map for ancestral geographical information on blood types?

2. Lesley April 11, 2021 Reply

   Does anyone remember the study on the Han Chinese blood types? Some of them were different kind of O-‘s and they are normally B+ I think. And also the Tibetan monks inheriting a Denisovan gene that allows them to live in high altitude. I read an article about a monk having low hemoglobin levels, which is something rh-‘s have also. I’ve been wondering if there was a connection somewhere and then I saw this on Wikipedia, referring to HLA A 02(major histocompatibility complex). It says its common globally but has some rare subtypes. If you scroll down to the chart referring to “allele HLA A 02 01”, it includes the following:
   Mexico Sonora, USA Arizona Prima, Finland, Bulgaria, Spain Catalonia, Portugal North, Ireland, USA Caucasian, Spain Basque, Australia, Turkey, China Tibet, Native Americans, Morocco Berber, Uganda, Japan, South Chinese Han, and many others. The list starts with the highest percentages of this allele and are higher than percentages of rh-‘s. The only thing I can see that these places might have in common is possibly ancient genomes?? I don’t know, but its interesting and all of them are this subtype allele HLA A 02 01. Here’s the link:
   https://en.m.wikipedia.org/wiki/HLA-A*02

3. Richard Youatt May 26, 2023 Reply

   I am seeing different distributions on different maps. This may be because of differences in method.
   See https://www2.palomar.edu/anthro/vary/vary_3.htm for Mourant’s maps on global distribution blood group as an example.

   I also have an issue with the ABO and RH(+ or – ) combinations. Modern genomic genetics informs us that they are inherited independently. In that case, looking at their combined distributions has limited meaning.

   A bigger issue is that research on this topic is driven by the two (legitimate) concerns of blood transfusion mismatches and Hemolytic Disease of the Newborn.

   That means that those of us with an interest in the sociology/anthropology are left out in the cold.

• Rhesusnegative.netAuthor May 27, 2023 Reply

  What we do need is data from ancient populations. For example, what is the Asian origin of the Blackfoot? Was there a tribe within Japan where blood type A dominated and they made it to the America’s before the nation became a melting pot?
  Several sources claim 82% of Blackfoot to be type A
  http://dnacommunities.com/viewtopic.php?t=2172
  Of course, since settlers arrived, the original percentage must have decreased significantly so once again, it would be interesting to see credible data derived from ancient burial grounds.

• Rhesusnegative.netAuthor May 27, 2023 Reply

  Iain Mathieson took us back to ancient Europe http://mathii.github.io/2017/09/21/blood-groups-in-ancient-europe
  I am still curious how he gathered such data and presented it with incredible certainty.
  We now know the Neanderthals specimens who have been examined to have been partial D.
  Testing for blood groups of ancient Basque burial grounds for example shouldn’t be too difficult.

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