Genetics News

New Study Reveals Remarkable Genetic Diversity among Papuan New Guinean Peoples

Papua New Guinea was likely a stepping stone for human migration from Asia to Australia. Bergstroem et al performed genome-wide single-nucleotide polymorphism genotyping on 381 individuals from 85 language groups in Papua New Guinea and found a sharp divide originating 10,000 to 20,000 years ago between lowland and highland groups and a lack of non-New Guinean admixture in the latter. This photo shows drummers and dancers from each village on the beach of Port Moresby, the capital and largest city of Papua New Guinea. Image credit: Steve Jurvetson / CC BY 2.0.
Sep 19, 2017 by News Staff

An international team of researchers led by the Wellcome Trust Sanger Institute has analyzed genome-wide data of 381 individuals from 85 language groups in Papua New Guinea and found that different groups within the country are genetically highly different from each other. The research is published in the journal Science. Papua New Guinea was likely a stepping stone for human migration from Asia to Australia. Bergstroem et al performed genome-wide...

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Mostafavi et al found a drop in some harmful genetic mutations in longer-lived people. Image credit: Darryl Leja, NHGRI / CC BY 2.0.

Natural Selection is Still Happening in Modern Human Populations, Major Genetic Study Finds

Sep 6, 2017 by News Staff

Genetic variants linked to Alzheimer’s disease and heavy smoking are less frequent in people with longer lifespans, suggesting that natural selection...

Migraines take a toll on around 1 billion people. This work by Baksa et al. indicates that individuals with certain gene variants in the CLOCK gene, which is involved in circadian rhythms, are at a higher risk of migraines when they are exposed to financial hardship. Image credit: Sasha Wolff / CC BY 2.0.

Study: Circadian Rhythm Gene Variants Increase Risk of Migraines from Financial Hardship

Sep 5, 2017 by Zvi Cramer

Researchers have shown that financial stress may cause more migraines in individuals with variants in the circadian rhythm gene CLOCK, suggesting that...

Ancient Greek by Albert Kretschmer in Costumes of All Nations, 1882.

Minoans and Mycenaeans Descended from Anatolian Migrants, Ancient DNA Study Suggests

Aug 4, 2017 by News Staff

Researchers have obtained and analyzed genome sequences from the ancient Minoans and Mycenaeans, who lived 3,000 to 5,000 years ago and were Europe’s...

The Grapes of Canaan, c. 1896-1902, by James Jacques Joseph Tissot. Image credit: Jewish Museum, New York.

Lebanese are Direct Descendants of Biblical Canaanites, Study Suggests

Jul 27, 2017 by News Staff

In the first study of its kind, a Wellcome Trust Sanger Institute-led team of researchers has uncovered the genetics of the ancient Canaanites and a firm...

Enigmatic Archaic Human Relative Interbred with Ancestors of Modern Africans, Study Suggests

Jul 24, 2017 by News Staff

A mysterious hominin species mated with the ancestors of modern-day Sub-Saharan Africans, according to an analysis of modern human genomes published this...

According to Professor Graur, the functional fraction within the human genome cannot exceed 25%, and is probably considerably lower.

Only 10-25% of Human Genome is Functional, New Estimate Says

Jul 19, 2017 by News Staff

In a paper published in the journal Genome Biology and Evolution, University of Houston Professor Dan Graur says that the functional portion of the human...

Common signs and symptoms of systemic lupus erythematosus, the most common type of lupus. Image credit: Mikael Haggstrom.

Researchers Identify Potential Cause of Lupus

Jul 17, 2017 by News Staff

A group of researchers at the Feinstein Institute for Medical Research has identified a protein called Blimp-1 as a likely primary cause of the adverse...

Gaudry et al demonstrate that members of various lineages (for example, cetaceans, horses, woolly mammoths, Steller’s sea cows) evolved extreme cold hardiness in the absence of UCP1-mediated thermogenesis. Image credit: Mauricio Anton.

Single Gene Linked to Evolutionary Rise of Multiple Mammalian Lineages

Jul 17, 2017 by News Staff

Ancient, independent inactivations of the ucp1 gene, which encodes the uncoupling protein 1, or UCP1 (essential for thermogenesis in brown fat), were a...

DNA is emerging as an excellent medium for storing data. Image credit: Shipman et al, doi: 10.1038/nature23017.

Researchers Replay Digital Movie Encoded in Bacterial DNA

Jul 13, 2017 by News Staff

For the first time, researchers have used the CRISPR-Cas microbial immune system to encode a primitive digital movie into — and then ‘play it back’...

Willems et al identified 16 genetic variants associated with maximal hand grip strength. Image credit: Skeeze.

Major Study Identifies Common Genetic Variants Associated with Muscle Strength

Jul 12, 2017 by News Staff

In a genome-wide association study, researchers from the University of Cambridge and elsewhere have identified 16 common genetic variants which influence...

Triticum turgidum. Image credit: Stan Shebs / CC BY-SA 3.0.

Researchers Reconstruct Genome of Wild Wheat

Jul 10, 2017 by News Staff

An international research team led by Tel Aviv University scientist Dr. Assaf Distelfeld has reconstructed the genome of the wild wheat Triticum turgidum,...

Nebamun hunting in the marshes with his wife and daughter, part of a wall painting from the tomb-chapel of Nebamun, Thebes, New Kingdom, 1350 BC. Image credit: Werner Forman Archive / Bridgeman Images.

Ancient and Modern DNA Reveal How Cats Conquered World

Jun 21, 2017 by News Staff

According to a new analysis of modern and ancient cat DNA, today’s domestic cat is a descendant of both the Near Eastern and Egyptian populations of...

Insomnia is one of the most common health problems. Image credit: Dan Fa.

Scientists Discover First Genes for Insomnia

Jun 12, 2017 by News Staff

Researchers from Vrije Universiteit Amsterdam and elsewhere have identified seven risk genes for insomnia. Insomnia is one of the most common health problems....

The Mojave desert tortoise (Gopherus agassizii). Image credit: Sandra Leander, Arizona State University.

Researchers Sequence Genome of Mojave Desert Tortoise

Jun 5, 2017 by Enrico de Lazaro

An Arizona State University-led team of scientists has sequenced the genome of the Mojave desert tortoise (Gopherus agassizii), a long-lived species native...

CRISPR-Cas9 gene editing can cause hundreds of unintended mutations. Image credit: Lisichik.

CRISPR-Cas9 Editing Can Cause Unexpected Mutations, Researchers Say

May 30, 2017 by News Staff

As CRISPR-Cas9 gene editing starts to move into clinical trials, a research team led by scientists at Columbia University Medical Center has found that...

Spinach (Spinacia oleracea). Image credit: George Hodan.

Spinach Genome Sequenced

May 29, 2017 by News Staff

An international team of researchers from Cornell University’s Boyce Thompson Institute and Shanghai Normal University has produced the first high-quality...

According to Williams et al, the earliest metabolisms of the Archaea were based on the anaerobic reduction of carbon dioxide, and likely evolved during the earliest period of Earth’s evolutionary history. This is an artist’s impression of an Archean landscape. Image credit: Tim Bertelink / CC BY-SA 4.0.

Scientists Improve Evolutionary Tree of Life for Archaea

May 28, 2017 by Enrico de Lazaro

An international group of researchers from UK, France, Hungary and Sweden has provided new insights into the origins of the Archaea, the group of simple...

This digitally-colorized scanning electron microscopic image depicts Enterococcus faecalis. Image credit: Pete Wardell / CDC.

First Enterococci Appeared on Earth during Ordovician Period, Says Study

May 11, 2017 by News Staff

According to a new study published today in the journal Cell, the enterococci — gram-positive aerobic bacteria and a leading cause of hospital-acquired...

Stages of liver disease. Image credit: National Institute of Diabetes and Digestive and Kidney Diseases.

Researchers Identify Liver Fibrosis-Causing Protein

May 4, 2017 by News Staff

An international team of scientists has identified a long-sought protein that causes liver fibrosis (scarring), paving the way for new treatments. The...

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