Researchers Decipher the Complete Genome of Ancient Egypt

A global consortium of researchers has successfully sequenced the complete genome of adult male Egyptians from over four millennia ago, predating the unification of Egypt and enriching our understanding of the early dynastic period and prior kingdoms.

The Nevamun hunt in the swamp with his wife and daughter is part of a mural from Chapelle, the tomb of Nevamun in the New Kingdom, in 1350 BC. Image credit: Werner Forman Archive/Bridgeman Images.

Dr. Pontus Skoglund from the Francis Crick Institute stated:

“While Ancient Egypt offers a rich tapestry of history and archaeology, the challenges of DNA preservation have rendered the genomic records of early Egyptian ancestors largely unparalleled.”

“Recent advances in genetic technology have enabled us to transcend these barriers and mitigate DNA contamination, giving us the first genetic insights into potential migrations of Egyptian populations during this era.”

In this research, scientists obtained and sequenced DNA from individual teeth belonging to Nuway rats from a village located 265 km south of Cairo.

Through analysis of the genetic code, they discovered that a significant portion of the individual’s ancestry traced back to ancient populations in North Africa.

The remaining 20% of ancestry linked to ancient peoples from the fertile crescent, particularly from a region known as Mesopotamia (roughly corresponding to modern Iraq).

These findings provide genetic proof that populations migrated to Egypt, intermingling with the local populace—previously revealed only through archaeological artifacts.

However, researchers caution that additional genomic sequences are required to fully comprehend the variations among Egyptian ancestors during this period.

By examining the chemical markers found in teeth related to diet and environmental factors, they concluded that these individuals likely grew up in Egypt.

They also analyzed skeletal remains to estimate age, gender, height, and gather insights into their ancestry and way of life.

These markers indicated that the skeleton exhibited muscle markings suggestive of prolonged occupations, such as pottery or other trades requiring similar movements.

“By piecing together the evidence from this individual’s DNA, bones, and teeth, we were able to construct a detailed portrait,” remarked Dr. Adeline Mores Jacobs from Liverpool John Moores University.

“We anticipate that future DNA samples from ancient Egypt will enhance our understanding of this migration from West Asia.”

“This individual’s life story is remarkable,” noted Dr. Linus Girdland Flink, co-author from Liverpool John Moores University.

“He lived and died during a pivotal moment in ancient Egypt, with his skeleton excavated in 1902 and subsequently donated to the World Museum in Liverpool.”

“We are beginning to uncover this individual’s story, revealing ancestral connections to the fertile crescent and illustrating the intermingling of diverse groups during this time.”

“The skeletal markings provide significant clues about his personal life and lifestyle. His pelvic bones are enlarged, showing extensive activity, and his arms exhibit signs of repetitive motion, while his right foot displays notable arthritis.”

“These findings suggest a connection to ceramics, possibly involving the use of ceramic wheels in ancient Egypt.”

“Nonetheless, the elevated burial status associated with his remains is not typically expected for potters, indicating he may have achieved a higher social standing.”

study published in the journal Nature.

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A. Mores Jacobs et al. The genomes of the ancestors of the Old Kingdom Egyptians. Nature, published on July 2, 2025. doi:10.1038/s41586-025-09195-5

Source: www.sci.news

Scientists decipher the ginseng genome

A team of Chinese scientists has assembled a reference genome from telomere to telomere. Korean ginseng (Korean ginseng)A representative of traditional Chinese medicine.

Overview of morphological characteristics of Korean ginseng (Korean ginseng). Image credit: Song others., doi: 10.1093/hr/uhae107.

Ginseng is one of the most important medicinal plants and is cultivated in Northeast Asia, including China, Korea, Siberia, and Japan, and in smaller quantities in North America.

As recorded in the ancient Chinese text Shennong Benmatao Jing, the perennial root of ginseng has been used for thousands of years in traditional medicine and as a functional food and beverage with bodily and immune-boosting properties.

Ginseng has a very long history of being collected from the wild in fields, and cultivation began about 500 years ago. Since then, selective breeding has begun and cultivated varieties have become common.

“Like other herbs, medicinal ginseng has complex metabolites that are believed to be active compounds, of which triterpene saponins (ginsenosides) are the most important class,” said Wei Li, PhD, of the Shenzhen Institute of Agricultural Genomics, Chinese Academy of Agricultural Sciences, and colleagues.

“Ginseng probably contains more than 100 types of ginsenosides, but the synthesis pathways of most of the ginsenosides remain unknown.”

In the new study, Dr. Lee and his co-authors assembled a ginseng reference genome from telomere to telomere.

“We used this intertelomeric reference genome to study the phylogeny and evolution of ginseng and to explore the asymmetric loss and biased expression of genes among its subgenomes,” they explained.

The authors identified 77,266 protein-coding genes in the 3.45 Gb ginseng genome.

The team also identified asymmetric gene loss and biased gene expression across the subgenomes, tracing the divergence back approximately 6.07 million years.

Their analysis revealed extensive expansion of gene families related to saponin biosynthesis and highlighted the importance of specific gene duplications in enriching these pathways.

Comparative genomic analysis with related species will provide further insight into the evolutionary strategies employed by ginseng to maximize its medicinal properties.

“The complete sequencing of the ginseng genome is a monumental achievement in plant research,” Dr Lee said.

“Not only will it broaden our understanding of the genetic complexity of medicinal plants, but it will also introduce sophisticated methods for cultivating ginseng varieties with superior health properties.”

“Comprehensive sequencing of the ginseng genome has laid the foundation for precision breeding techniques aimed at enhancing its medicinal properties.”

“This research not only has immediate applications in the intensification of ginseng cultivation, but also serves as a model for studying other medicinal plants, potentially revolutionizing pharmacology and crop intensification strategies with natural products.”

of result Published in the journal Horticultural Research.

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Song Yi-ting others2024. Telomere-to-telomere reference genome Korean ginseng Our focus is on the evolution of saponin biosynthesis. Horticultural Research 11 (6): uhae107; doi: 10.1093/hr/uhae107

Source: www.sci.news

The groundbreaking project aiming to decipher and potentially reverse menopausal age

From the moment you begin as an immature egg in your grandmother’s womb, your fertility journey is limited. However, scientists at Cambridge University may soon change that reality in their bright labs.

Dr. Staša Stankovic is one of these scientists. Her research at Addenbrookes Hospital in Cambridge has uncovered valuable data in the field. Now, Stankovic is focused on unraveling the mysteries surrounding fertility and menopause.

Women’s ovaries hold a finite supply of eggs that represent their fertility. Stankovic compares this concept to an hourglass, where the sand (eggs) can only flow in one direction until it runs out, signaling the onset of menopause.

“In science, we aim to control the hourglass’s middle part,” she explains. “Our goal is to limit the eggs’ loss over time, preserving the highest quality eggs for as long as possible.”

Working with a team for five years, Stankovic is developing a method to predict the natural fertile period and age of menopause with 65% accuracy, aiming for 80% accuracy in clinical practice.

Additionally, the team is exploring potential drug solutions to address infertility and potentially delay menopause. The onset of menopause is influenced by the ovarian reserve and the rate at which eggs deplete over a woman’s lifetime, typically occurring around age 50 with fewer than 1,000 eggs left.

For women experiencing early menopause or premature menopause, these drug treatments could be life-changing.

Your Menopausal Age

Researchers are studying genetic factors using a blood sample rather than physical examinations to understand how genes impact fertility and menopause.


The research team analyzed data from over 200,000 women in the UK Biobank, which provided insights into menopause, fertility, and overall health metrics. This data will help researchers make connections with other health outcomes like dementia and diabetes.

By identifying over 300 genetic variations linked to menopause, researchers foresee potential solutions for ovarian diseases and early menopause using drug interventions.

Stankovic cautions against relying solely on IVF and egg freezing as magical solutions, emphasizing the need for more effective treatments with higher success rates.

Effects of Delaying Menopause

The research team is hopeful about developing infertility drugs that not only address symptoms but also regulate ovarian function. While the drug’s availability is estimated within the next decade, rigorous testing and validation are still required.

The team’s focus is on identifying crucial genes, conducting testing in ovarian models, and formulating drugs that maintain egg quality and quantity as women age.

Ultimately, the goal is to delay menopause and extend reproductive lifespan. Preliminary studies on mice have shown promising results, but further research is needed before human trials can begin.

Aside from fertility benefits, delaying menopause could also impact women’s overall health, offering insights into various diseases associated with menopause.

About Our Experts

Dr. Staša Stanković is an ovarian genomicist with a PhD in reproductive genomics from the University of Cambridge. Her groundbreaking research has been published in top scientific journals, shedding light on the biological mechanisms behind ovarian aging and menopause.

Read more:

Source: www.sciencefocus.com

Harvard University Researchers Decipher Enigmas of the Brain

A new study led by Harvard Medical School has revealed the neurological foundation of daydreaming. Conducted in mice, the study found that neurons in the visual cortex fired in patterns similar to those seen during the viewing of images, indicating daydreaming. This was especially pronounced during early daydreams and could predict future brain responses to visual stimuli, implying a role in brain plasticity. The study suggests that daydreaming may play a role in learning and memory processes in mice and potentially in humans. Credit: SciTechDaily.com

However, most neuroscientists do not understand what happens in the brain during daydreaming. A team of researchers at Harvard Medical School used mice to investigate the activity of neurons in the visual cortex of the brain during quiet wakefulness and found that these neurons fire in patterns similar to when the mouse views images, indicating that the mouse was daydreaming about the image. Furthermore, the brain showed the same firing pattern during daydreams as when it was seeing an image, suggesting that the mouse was imagining the image. These daydreams occurred only when the mouse was relaxed and had a calm behavior and small pupils.

The researchers found that mice were biased towards daydreaming about recently viewed images, and this daydreaming was more prominent at the beginning of the day. The daydreams influenced the brain’s future responses to images, indicating a role in brain plasticity. The two regions of the brain, the visual cortex and the hippocampus, were also found to communicate during daydreaming. Subsequent research with imaging tools will examine how these connections change when the brain sees an image.

While it remains an open question whether human daydreams involve similar patterns in the visual cortex, preliminary evidence suggests that a similar process occurs during the recall of visual images. The findings suggest that giving the mind waking downtime is crucial for daydreams, which is important for brain plasticity. This research was published on December 13th in Nature.

Source: scitechdaily.com