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I am Intramural Blog

evolution

IRP’s Eugene Koonin Elected to National Academy of Medicine

Scientist Decoded DNA to Build a Genomic Tree of Life

Wednesday, December 14, 2022

Dr. Eugene Koonin

In 1973, the geneticist Theodosius Dobzhansky wrote a now-famous essay that declared, “Nothing in biology makes sense except in the light of evolution.” That sentiment has served as the guiding principle for the career of IRP senior investigator Eugene V. Koonin, Ph.D., who was elected to the National Academy of Medicine (NAM) in October 2022 for his contributions to the field of evolutionary biology.

Dr. Koonin’s pioneering efforts to identify clusters of similar genes found in different organisms passed down by a common ancestor — known as ‘homologous’ genes — has helped to unlock the secrets encoded in DNA and create a foundation for the systematic study of how genes evolve and function. His lab at the National Library of Medicine’s National Center for Biotechnology Information (NCBI) uses a combination of genomic sequencing and mathematical modeling to compare genes across species and determine how they work and where they came from. From this information, his team can develop a systematic framework to show the relationship between genes as they evolved. It’s like drawing the tree of life, but on a genomic scale.

Postdoc Profile: A Bird’s-Eye View of Retinal Disease

Dr. Noor White Traces Evolution to Identify Genes Critical for Vision

Monday, April 11, 2022

Dr. Noor White

The eye has existed in some form for roughly 600 million years. Its many intricate components and the general ability of organisms to sense light have continued to adapt and evolve over huge spans of time into what we know as vision today. By mapping out the evolution of vision, Noor White, Ph.D., hopes to shed light on the genetic causes of diseases that affect the retina, the part of the eye that turns light into electrical signals the brain can use to build an image of our surroundings.

“If we can take a step back and look at the bigger picture, then we can identify the critical genetic components of vision,” explains Dr. White, who was an IRP postdoctoral fellow for four years before becoming a Staff Scientist in March.

IRP’s Elaine Ostrander Elected to National Academy of Sciences

Genetic Research in Dogs Sheds Light on Human Disease

Monday, August 26, 2019

Dr. Elaine Ostrander

The National Academy of Sciences, a private society established in 1863, is made up of the United States’ most distinguished scientific scholars, including nearly 500 members who have won Nobel Prizes. Members of the NAS are elected by their peers and charged with the responsibility of providing independent, objective advice on national matters related to science and technology in an effort to further scientific innovation in the U.S.

IRP Senior Investigator Elaine Ostrander, Ph.D., is one of four IRP researchers who were elected to the Academy over the past two years. As head of the Cancer Genetics and Comparative Genomics Branch at the NIH’s National Genome Research Institute (NHGRI), Dr. Ostrander focuses on expanding our understanding of the genetic basis of human disease. However, her team does not just study humans. In fact, Dr. Ostrander works with dog owners, breeders, and veterinarians to study our canine companions and understand which genes control the variations seen across dog breeds. She specifically focuses on genes that control growth and genes associated with cancer susceptibility in an effort to understand why changes in those particular genes can cause illness in humans.

A Friendly Bet Turned Major Scientific Discovery

IRP Investigator Bevil Conway Discusses the Science Behind the Headlines

Monday, July 15, 2019

pitch processing in the brain

What started as a friendly bet between investigators soon produced a major scientific discovery that calls into question the long-standing notion that non-human primates serve as accurate models for the way human brains function. The study, conducted by IRP investigator Bevil Conway, Ph.D., made headlines recently with reports in outlets such as NPR and U.S. News and World Report. We’re going Behind the Headlines with Dr. Conway to dive deeper into the story, understand the significance of his findings, and see where his work could lead.

IRP Intern Wins Recognition in Prestigious Science Competition

Computational Biology Research Conducted at NIH Garners $25,000 Prize

Monday, April 8, 2019

Maryland teen Daniel Schäffer presented his research in Washington, D.C., as a finalist for the 2019 Regeneron Science Talent Search.

The IRP is home to some of today’s and tomorrow’s greatest scientific minds. Hundreds of budding biomedical pioneers begin honing their scientific skills here in high school, but very few win distinction as quickly as seventeen-year-old Daniel Schäffer, whose IRP research earned him inclusion among this year’s 40 finalists in the prestigious Regeneron Science Talent Search.

Labradors, Terriers, and Boxers — Oh My! IRP Researchers Delve Into Doggy DNA

Monday, February 26, 2018

two breeds of dog that have massively differing physical traits

For over a decade, my family shared our home with a short, fat beagle named Kayla Sue. She had big floppy ears, a tail as straight as an exclamation point, and a coat of fur that was a patchwork of white, brown, and black splotches. Her love of chasing small animals was matched only by her enthusiasm for eating, napping, and belly rubs. One of my best friends growing up, on the other hand, had a mean-spirited Dachshund named Rocky who would not let anyone outside his family touch his long, brown, sausage-shaped body. Meanwhile, one of my brother’s close childhood friends had two humongous, overly-friendly, black-and-brown German shepherds that would immediately bowl you over when you walked through the front door.

It doesn’t take a particularly sharp observer to notice that, despite being the same species, the more than 300 breeds of dog have remarkably different physical and behavioral traits. But what remains less clear even today are the specific biological roots that produce these widely varying attributes. And, perhaps more importantly, scientists seek to understand how learning about that immense diversity might help us improve the health of our canine companions – and ourselves.

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