Scientists analyze first ancient human DNA from Southeast Asia

sciencedaily

Results reveal three major waves of migration

Date: May 17, 2018
Source: Harvard Medical School
Summary:
Researchers have completed the first whole-genome analysis of ancient human DNA from Southeast Asia Study identifies at least three major waves of human migration into the region over the last 50,000 years, each shaping the genetics of Southeast Asia.

Field workers excavate ancient human remains at Man Bac, Vietnam, in 2007. DNA from skeletons at this site was included in the current study.
Credit: Lorna Tilley, Australian National University

The first whole-genome analyses of ancient human DNA from Southeast Asia reveal that there were at least three major waves of human migration into the region over the last 50,000 years.

The research, published online May 17 in Science, complements what is known from archaeological, historical and linguistic studies of Southeast Asia, defined as the area east of India and south of China. Tiếp tục đọc “Scientists analyze first ancient human DNA from Southeast Asia”

The ethics of catching criminals using their family’s DNA

nature.com
A high-profile arrest in California shows how the long arm of the law can now extend into DNA databases to check for relatives.
Authorities search the home of a suspected killer

The use of ancestral DNA data to track a suspected murderer raises some troubling ethical questions.Credit: Rich Pedroncelli/AP/REX/Shutterstock

Last week’s arrest of a suspect in the Golden State Killer case in California has highlighted how DNA samples that have been volunteered for one purpose — in this case, genealogy — can be used for other reasons, often without the donor’s explicit consent. Several ethicists have expressed concern about US detectives using a genealogy website in this way. Coming so soon after the reuse of Facebook data in political campaigns in the Cambridge Analytica scandal, it’s another example of how new technology and techniques lead to unexpected conundrums, and how ethical and societal debate must catch up. Tiếp tục đọc “The ethics of catching criminals using their family’s DNA”

My Son in Vietnam – The Story of Bob and Nhàn

dna-explained.com

Have you ever seen a “birth” announcement for a 48 year old child’s arrival? No? Well, you have now.

nhan-birth

Meet Nahn, son of Bob Thedford. You see, Bob never knew that Nahn existed, and Nahn didn’t know how to find his father.

For 48 years, Nahn dreamed and Bob had no idea…and then one day…that all changed, thanks to a DNA test at Family Tree DNA.

I became peripherally involved in Bob and Nahn’s story in 2013 when Bob’s wife, Louise, contacted me, in shock. Tiếp tục đọc “My Son in Vietnam – The Story of Bob and Nhàn”