Genetics

Living the Scientific Life (Scientist, Interrupted)

Category archives for Genetics

tags: The World’s Smallest Horse, miniature horses, animals, pets, selective breeding, artificial selection, streaming video The world’s smallest horse, a colt named Einstein, was born 22 April 2010 on a farm in Barnstead, New Hampshire. Just 14 inches tall and weighing only 6 pounds at birth, Einstein appears to have beaten the previous “world’s tiniest…

tags: evolutionary biology, behavioral ecology, molecular ecology, personality, novelty seeking, exploratory behavior, dopamine receptor, dopamine receptor D4 gene, DRD4 gene polymorphism, ornithology, birds, Great Tit, Parus major, researchblogging.org,peer-reviewed research, peer-reviewed paper Bold or cautious? Individuals with a particular gene variant are very curious — but only in some populations. Image: Henk Dikkers. Research suggests that…

tags: evolution, evolutionary biology, gynandromorph, bilateral gynandromorph bird, half-sider, mixed-sex chimaera, sex determination, molecular biology, genetics, developmental biology, endocrinology, birds, chicken, Gallus gallus, ornithology, researchblogging.org,peer-reviewed research, peer-reviewed paper, journal club Half-sider. Almost exactly one year ago, hundreds of American birders were thrilled by sightings and photographs of this remarkable Northern Cardinal, or Redbird, Cardinalis cardinalis,…

tags: evolution, evolutionary biology, ancient DNA, aDNA, molecular biology, molecular ecology, archaeology, paleontology, fossil eggshell, extinct birds, giant moa, Dinornis robustus, elephant birds, Aepyornis maximus, Mullerornis, Thunderbirds, Genyornis, researchblogging.org,peer-reviewed research, peer-reviewed paper, journal club Elephant bird, Aepyornis maximus, egg compared to a human hand with a hummingbird egg balanced on a fingertip. To conduct my…

tags: evolutionary biology, molecular biology, Thoroughbred race horses, horses, aerobic capacity, muscle development, myostatin, MSTN, myostatin-suppressing C variant, myostatin-suppressing T variant, Horse Genome Project, Equinome, researchblogging.org, peer-reviewed research, peer-reviewed paper Emerging from the mist is Rachel Alexandra, a champion American Thoroughbred who excels at winning both long and short distance races. Image: Rob Carr, 2009,…

tags: evolutionary biology, behavioral ecology, biochemistry, biophysics, magnetoreception, photoreceptor, cryptochromes, geomagnetic fields, butterflies, Monarch Butterfly, Danaus plexippus, birds, migration, signal transduction, researchblogging.org,peer-reviewed research, peer-reviewed paper Every autumn, millions of monarch butterflies, Danaus plexippus, each weighing less than one gram (one US penny weighs 2.5 grams), migrate nearly 4000 kilometers (3000 miles) between their summer breeding…

Bacteria Make Mexican Waves

tags: synthetic biology, molecular biology, genetics,Bacteria make Mexican Waves, A synchronized quorum of genetic clocks, bacteria, fluorescence,biological clock, NPG, peer-reviewed research, NATURE, 10.1038/nature08753, streaming video By synchronizing our clocks, we can coordinate our activities with people around the world. Now, scientists have genetically engineered bacteria to synchronize their molecular timekeepers, creating the stunning fluorescent waves…

Cotton: Building a Better Plant

tags: Cotton: Building a Better Plant, cotton, agriculture, genomics, fabrics, technology, streaming video This is another beautifully written and produced video about plant research. The lucky plant? This time, it’s cotton — what jeans and t-shirts are made of! This video explores how modern cotton plants came to be, the 50 species of cotton, and…

Corn: The Dynamic Genome

tags: Corn: The Dynamic Genome, corn, agriculture, genomics, food science, technology, streaming video This is a beautifully written and produced science video about corn: where it came from, what it originally looked like, the technology we are using to learn the functions of individual corn genes, and future directions for research into corn genetics.

Why Study the Tree of Life?

tags: Tree of Life, conservation, biodiversity, ecology, evolution, biology, statistics, teaching, streaming video This video presents a very brief glimpse into what I do as a professional researcher studying “my birds” — the parrots of the South Pacific Ocean (during those rare and beautiful times when I actually have a job!!). To say the least,…