Evolution & Ecology

You have likely not spent much time thinking about the uterus of the fruit fly, Drosophila melanogaster. But then, neither have most scientists, even though Drosophila is one of the most thoroughly studied lab animals. Now a team of biologists at the University of California, Davis, has taken the first deep look at the Drosophila uterus and found some surprises, which could have implications not just for understanding insect reproduction and potentially, pest control, but also for understanding fertility in humans.

At UC Davis, undergraduates have opportunities to dive into independent research at the Bodega Marine Laboratory (BML) through the EVE Scholars Program. Students like Aishu Santosh and Caroline Donohew are pushing the frontiers of marine science while discovering a lot about themselves in the process.

Longtime UC Davis academic coordinator Carole Hom, who retires this year after a quietly influential career, is so beloved that she has two nametags: one bearing her official title, and another with alternates—“Spiritual Leader” and “Chief Guru”—made for her by colleague Rick Grosberg, a distinguished professor emeritus of Evolution and Ecology. 

Jeffrey Ross-Ibarra, a professor in the Department of Evolution and Ecology at the University of California, Davis, has been awarded the prestigious National Academy of Science Prize in Food and Agriculture Sciences for 2024. Ross-Ibarra was awarded the prize in recognition of his “pioneering studies on the evolutionary genetics of maize, a key crop species for global food production.”

When Professor Jay Stachowicz heard that UC Davis’ chancellor needed to speak to him urgently, he worried he had done something wrong.

Maize is one of the world’s most widely grown crops. It is used for both human and animal foods and holds great cultural significance, especially for indigenous peoples in the Americas. Yet despite its importance, the origins of the grain have been hotly debated for more than a century. Now new research, published Dec. 1 in Science, shows that all modern maize descends from a hybrid created just over 5000 years ago in central Mexico, thousands of years after the plant was first domesticated.

Jay Stachowicz, a professor in the Department of Evolution and Ecology, has been named the interim director of the Coastal and Marine Sciences Institute (CMSI). Stachowicz succeeds the institute’s founding director, Rick Grosberg, a distinguished professor emeritus of evolution and ecology who retired from the university earlier this year.

Many mammals, from domestic cats and dogs to giant pandas, use scent to communicate with each other. A new study from the University of California, Davis, shows how domestic cats send signals to each other using odors derived from families of bacteria living in their anal glands. The work was published Nov. 8 in Scientific Reports.

UC Davis junior Caroline Donohew watched the everyday power of biology in just five minutes during her summer session class at UC Davis’ Bodega Marine Laboratory, or BML, a coastal research and education facility about 100 miles west of campus. 

While observing a mussel’s muscle through a microscope, “I saw it create a byssal thread in real time,” said Donohew, who is from San Anselmo. “And it was just so cool.” 

Beds of eelgrass (Zostera marina) form an important habitat in coastal regions throughout the northern hemisphere, crucial to many fish and other species and storing vast amounts of carbon. A new study published July 20 in Nature Plants shows that eelgrass spread around the world much more recently than previously thought, just under a quarter-million years ago. The results have implications for how eelgrass could be affected by a changing climate.