Many human genomes shaped by past events that caused sharp dips in the population – BIOENGINEER.ORG

The genomes of many human populations show evidence of founder events, which occur when a small number of initial members start a new population, and can lead to low genetic diversity as well as increase the risk of certain genetic diseases in the new population. Rémi Tournebize and Priya Moorjani of the University of California, … Read more

Collecting a library of bee genomes – BIOENGINEER.ORG

Credit: Colleen Meidt, ARS-USDA. Kim Kaplan 301-504-1637 [email protected] Collecting a Library of Bee Genomes LOGAN, UTAH, June 22, 2022—The USDA Agricultural Research Service is leading a project dubbed “Beenome100” to produce high-quality maps of the genomes of at least 100 bee species, capturing the diversity of bees in the United States, representing each of the … Read more

1,700-year-old Korean genomes show genetic he

image: Burial of AKG_3420 from Yu-hari, it corresponds to a child from the Korean TK period. (© John Bahk) view more Credit: © John Bahk An international team led by The University of Vienna and the Ulsan National Institute of Science and Technology in collaboration with the National Museum of Korea has successfully sequenced and … Read more

High-resolution genomes reveal nuanced origins of the first farmers – BIOENGINEER.ORG

Farming has been thought to originate from a single population in Southwest Asia, which covers parts of the modern-day Middle East, and made its way to areas in Turkey, Greece, and eventually across Western Europe. Scientists have long debated how these populations have emerged and flowed throughout these regions, but now an international team of … Read more

How Do Genomes Evolve Between Species? The Key Role of 3D Structure in Sperm Cells

New research shows that sperm production is critical to how regions of the genome are re-organized within and between chromosomes during evolution. In particular, inherited chromosomal rearrangements are associated with physical and biochemical processes that are specific to the final stages of sperm production, after the meiotic cell divisions have completed. A study led by … Read more

Squid and Octopus Genomes Reveal How Cephalopods’ Unique Traits Evolved

The Atlantic longfin inshore squid, Doryteuthis pealeii, has been studied for nearly a century by scientists as a model system for neuroscience investigations. Credit: Elaine Bearer Squid, octopus, and cuttlefish – even to scientists who study them – are wonderfully weird creatures. Known as the soft-bodied or coleoid cephalopods, they have the largest nervous system … Read more

We Finally Know Where Dingos Sit in Dogs’ Evolutionary Family Tree

Many people know modern dogs evolved from the gray wolf. But did you know most of the more than 340 modern dog breeds we have today only emerged within the past 200 years? Dogs were first domesticated during the Neolithic period between 29,000 and 14,000 years ago, and have been closely linked to humans ever … Read more

Should We Be Worried About XE, The New COVID Hybrid? Here’s The Science

A new hybrid COVID-19 variant dubbed XE has sparked fresh concerns recently. XE is a combination of the highly transmissible BA.1 and BA.2 Omicron variants and was first detected in the UK in mid-January. Its spike protein derives from BA.2, which is potentially good news for New Zealand since this is the dominant variant (more … Read more

New map reveals human genome’s most mysterious bits

Last week, a team of researchers from more than two dozen research institutions announced a breakthrough in the 30-year effort to create a high-quality sequence of the human genome. Although the first draft from the Human Genome Project was produced 20 years ago, nearly 8 percent of human DNA remained mysterious. Now, almost every part … Read more

We Now Have The Largest Ever Human ‘Family Tree’, With 231 Million Ancestral Lineages

In June 2000, two rival groups of researchers shook hands in the shared success of a milestone in biology – the delivery of a rough draft of the human genome. What started with an incomplete map of our chromosomes has since bloomed into a vast trove of individualized sequences from all corners of the globe, … Read more