human genetics

Gene Expression

Tag archives for human genetics

A little bit of the Others in Us

Dienekes has reposted some of the abstracts from the meeting of the American Association of Physical Anthropologists. This one caught my eye,

The tales that the X chromosome tells

Highly Punctuated Patterns of Population Structure on the X Chromosome and Implications for African Evolutionary History: It is well known that average levels of population structure are higher on the X chromosome compared to autosomes in humans. However, there have been surprisingly few analyses on the spatial distribution of population structure along the X chromosome.…

Cannibalism & evolution

Cannibalism is a controversial topic. It is routine for particular societies to accuse “barbarians”, enemies, or evil mythological figures, of cannibalism. When it comes to the archaeological record some skeptics have claimed that like “sacred objects” too often human remains found in peculiar circumstances are ascribed to human sacrifice or cannibalism. In Did Adam and…

Reading the papers on Ardipithecus ramidus which just came out in Science one of the take-home points that jumps out at me is that extant apes may be very misleading analogs to extinct hominins. Here is Owen Lovejoy: In retrospect, clues to this vast divide between the evolutionary trajectories of African apes and hominids have…

Yes, Uyghurs are a new hybrid population

Sometimes I wonder if the period between the publication of The History and Geography of Human Genes and The Journey of Man, roughly from the mid-90s to the early 2000s, will be seen as a golden age for historical population genetics in hindsight. A few weeks ago I pointed to new data based on DNA…

The chromosomal Origin of Man

The Evolutionary Origin of Man Can Be Traced in the Layers of Defunct Ancestral Alpha Satellites Flanking the Active Centromeres of Human Chromosomes. The authors are Russian, so I think the somewhat grand and archaic first portion of the title can be explained as a mater of translation. Here’s the author summary: The primate centromere…

On this week’s Science Saturday John Horgan interviews Richard Wrangham. The second half of the conversation focuses on Wrangham’s new book, Catching Fire: How Cooking Made Us Human. I’ve heard pieces of the arguments mooted in the back & forth before, but it looks like in this book they’re all brought together. Humans are a…

400-500 years ago in the midst of the Great Dying somewhere the indigenous inhabitants of the New World suffered mortality rates on the order of 90-95%. This was almost certainly due to the facts of evolutionary history; the indigenous peoples had little defense against Eurasian pathogens. A result has been the reality that most of…

Dienekes reports on an abstracts for paper presentations at the ESHG 2009. This was is particularly interesting: European Lactase Persistence Allele is Associated With Increase in Body Mass Index J. A. Kettunen et al. The global prevalence of obesity, usually indexed by body mass index (BMI) cut-offs, has increased significantly in the recent decades, mainly…

In the comments below on the post on human population structure there was some request for a bigger global perspective. Below the fold I’ve placed a table with FST values which compare each population to the other. This an older population genetic statistic derived from the work of Sewall Wright, but you are almost certainly…