genetics
Washington (AFP) - A little-known dog lineage with fur so thick it was spun into blankets was selectively bred for millennia by Native Americans of the Pacific Northwest until its rapid demise following European colonization, a study in Science showed Thursday. The new research was based on a genetic analysis of "Mutton," one of the last surviving Coast Salish woolly dogs whose pelt was sent to the nascent Smithsonian Institution in 1859, only to be largely forgotten until the early 2000s. Interviews contributed by Coast Salish tribal co-authors, meanwhile, revealed the dogs occupied a previou...
AFP
San Francisco (AFP) - Personal genetics firm 23andMe on Tuesday confirmed that hackers using stolen passwords accessed the personal information about 6.9 million of its members. While the hackers were only able to get into about 14,000 accounts, or 0.1 percent of its customers, they were able to see information shared by genetically linked relatives at 23andMe, a spokesperson said in reply to an AFP inquiry. 23andMe is in the process of notifying affected customers and has hardened account security by requiring users to reset passwords and set up a second authentication method such as sending ...
AFP
Washington (AFP) - As the last continents to be settled by humans, the question of how and when people first came to the Americas has long intrigued scientists. A new genetics study published Tuesday in Cell Reports finds that some of the first arrivals came from China during two distinct migrations: the first during the last ice age, and the second shortly after. "Our findings indicate that besides the previously indicated ancestral sources of Native Americans in Siberia, the northern coastal China also served as a genetic reservoir contributing to the gene pool," Yu-Chun Li, one of the rep...
AFP
By The Conversation All over the world, people suffered the influence of the COVID-19 pandemic on their wellbeing. However, the impact was not the same for everyone. We know physical health and mental health are affected partly by environmental factors, for example the COVID-19 pandemic, but partly by nature (genetics). The COVID-19 pandemic was an unique opportunity for researchers and the scientific community came together to form the COVID-19 host genetics initiative collaborating on research. Whole communities were suddenly and simultaneously exposed to both the virus and the social change...
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Washington (AFP) - The routine is now a familiar one: Open the kit, swirl a swab around, put it in solution and wait impatiently for the results. Except this time it's not a test for Covid -- it's a DNA test for dogs. The kits, which are used foremost to learn a dog's breeds, first appeared some 15 years ago and their popularity has since exploded in the United States, where nearly 40 percent of all families have at least one canine companion. "Having a dog and integrating them as a member of your family, you want to know where they're from," said Mila Bartos, a Washington lawyer. One of the m...
AFP
Washington (AFP) - A man's claim to be the great-grandson of Sitting Bull has been confirmed using DNA taken from the Native American leader's scalp lock -- billed as the first time genetic evidence has corroborated a family relationship between a historic figure and a living descendant. The breakthrough was made possible by a new technique that can yield useful genetic information from a tiny or fragmented sample of ancient DNA, developed by a team of scientists led by Professor Eske Willerslev of the University of Cambridge and the Lundbeck Foundation GeoGenetics Centre in Denmark. Their fin...
AFP
Paris (AFP) - Scientists said Wednesday they had discovered the oldest remains of a domestic dog in the Americas dating back more than 10,000 years, suggesting the animals accompanied the first waves of human settlers. Humans are thought to have migrated to North America from Siberia over what is today the Bering Strait at the end of the last Ice Age -- between 30,000 and 11,000 years ago. The history of dogs has been intertwined with man since ancient times, and studying canine DNA can provide a good timeline for human settlement. A new study led by the University at Buffalo analysed the mito...
AFP
Washington (AFP) - Scientists at the University of Pennsylvania and the biotech firm Regeneron are investigating whether technology developed for gene therapy can be used to make a nasal spray that will prevent infection with the new coronavirus. The idea is to use a weakened virus as a delivery truck to carry genetic instructions to cells within the nose and the throat, which will in turn create powerful antibodies to stop SARS-CoV-2 from invading our bodies. "The advantage of our approach is that you don't need a competent immune system for this to be effective," James Wilson, a professor of...
AFP
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