Genetics

Waterhemp is a nuisance for any crop producer, but in snap bean fields, the weed’s stem segments can break off during harvest, contaminating the crop with inedible look-alike “pods.” Vexingly, snap bean is harmed by many of the herbicides registered for waterhemp, leaving producers with few chemical solutions. 

The pathogen that causes bacterial spot is very good at what it does. Forming small lesions on the rinds of pumpkins, melons, cucumbers, and other cucurbits, it mars the fruits’ appearance and ushers in secondary pathogens that lead to rot and severe yield loss. The bacterium, Xanthomonas cucurbitae, is so successful that it has had no reason to evolve through time or space.

Domesticated animals play a prominent role in our society, with two-thirds of American families enjoying the companionship of pets and many others relying on animal products for their nutritional needs. But the process of domestication remains a bit of a mystery. Convincing wild animals they are safe enough to coexist and mate in enclosures and in close proximity to humans and other animals is no small feat. What does it take behaviorally and genetically for that to happen? 

An unassuming brown bovine from the south of Brazil has made history as the first transgenic cow capable of producing human insulin in her milk. The advancement, led by researchers from the University of Illinois Urbana-Champaign and the Universidade de São Paulo, could herald a new era in insulin production, one day eliminating drug scarcity and high costs for people living with diabetes. 

It has long been known that there is a complex interplay between genetic factors and environmental influences in shaping behavior. Recently it has been found that genes governing behavior in the brain operate within flexible and contextually responsive regulatory networks. However, conventional genome-wide association studies (GWAS) often overlook this complexity, particularly in humans where controlling environmental variables poses challenges.

URBANA, Ill. — As a source of protein and biodiesel for cleaner renewable energy, soybean is an important crop worldwide. But is it performing to its full potential? An ambitious effort led by the University of Illinois Urbana-Champaign and the U.S. Department of Energy Joint Genome Institute (JGI) will sequence 400 soybean genomes to develop a “pangenome” — an attempt to characterize all the useful diversity in the genome to create an even more robust and resilient crop.

URBANA, Ill. — Last week’s classification of BA.2.86 as a COVID "variant under monitoring" by the World Health Organization raises many epidemiological and public health questions. Among the unknowns is how the virus evolved to acquire 36 to 38 mutations on its spike protein, relative to other circulating variants.

URBANA, Ill. – In its simplest form, popcorn is pretty uncomplicated. Most supermarket varieties offer the choice of two kernel colors, yellow or white, and two kernel shapes, pointed or pearl. When popped, the flake typically expands into one of two shapes: mushroom or butterfly. But there’s more to popcorn than meets the eye. New research from the University of Illinois Urbana-Champaign reveals a wealth of untapped diversity lurking in popcorn’s genetic code.

URBANA, Ill. – It was the height of summer 2022 when the calls started coming in. Scores of dead deer suddenly littered rural properties and park preserves, alarming the public and inconveniencing landowners. According to officials at the Urbana Park District, it was Epizootic Hemorrhagic Disease (EHD), a midge-borne viral illness that pops up in white-tailed deer populations around the state every few years.

URBANA, Ill. – Chronic wasting disease, the prion disease affecting white-tailed deer and other cervids, is spreading. With documented cases in 29 U.S. states, two Canadian provinces, three Scandinavian countries, and South Korea, free-ranging and captive cervids are under threat. Efforts to conserve endangered deer against this backdrop are understandably fraught.