Olivia DrakeFred Cohan, professor of biology, delivered a presentation titled "Darwin vs. Mayr on the Origin of Bacterial Species," during a Darwin conference, celebrating the 200th anniversary of Charles Darwin's birth. The event was held Oct. 29-31 at the University of Chicago. Cohan joined other evolutionary biologists, historians and philosophers who connected their work directly with Darwin. 2009 also marks the 150th anniversary of Darwin's The Origin of Species.
Biology Ph.D candidate Kate Miller treks through a wildflower-lined trail alongside Middletown's Coginchaug River. She approaches a plastic garbage bin and a PCV pipe protruding from the ground. "That's my bat echolocation recorder," she says. “It’s old but I’m not complaining. It was free and it works.” Miller credits Scott Reynolds, Ph.D, of North East Ecological Services in Concord, N.H. for the loan of the equipment. Inside the crude setup is a 12-volt battery, an echolocation call recorder and lap-top computer. Every 1.5 seconds, the equipment translates the information into a graph and stores it as a data file on the…
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David PesciAnn Burke, associate professor of biology, recently received a three-year, $395,000 grant from the National Science Foundation (NSF) to study the development and evolution of the shoulder girdle using transgenic mice, frog and salamander. The mice will be generated in collaboration with a lab at the University of Michigan and will allow Burke and her associates to turn off Hox genes, which are specific patterning genes, in specific sub populations of the embryonic mesoderm that make the musculoskeletal tissues. "Comparing the dynamics of gene expression and cell interactions during the formation of the pectoral region in a variety of embryos…
Ann Burke, associate professor of biology, received a three-year, $395,000 grant from the National Science Foundation (NSF) to study the development and evolution of the shoulder girdle using transgenic mice, frog and salamander. She also received a two-year $100,000 grant from the National Institutes of Health (NIH) to use the same amphibian systems (salamander and frog) to develop a model system for understanding body wall defects in humans.The grants will provide funds for a team of researchers at Wesleyan working with Burke on these projects, including a postdoctoral fellow, graduate students and undergraduates.
Corrina KerrFor the next two years, researcher Silvia Matesanz of Segovia, Spain will be collaborating with Chair and Professor of Biology Sonia Sultan in her plant evolutionary ecology lab at Wesleyan. Matesanz was awarded the prestigious Marie Curie International Post-doctoral Fellowship from the European Commission. Matesanz, Sultan and biology BA/MA student Timothy Horgan-Kobelski ’09 will be studying an introduced annual plant called Polygonum cespitosum that is becoming invasive in North America. The scientists are particularly interested in understanding the evolutionary dynamics of the plant’s spread. Sultan and her research group will provide Matesanz with evolutionary expertise, which will enhance her previous…
Manju Hingorani, associate professor of molecular biology and biochemistry, is the co-author of "Mechanism of Cadmium-mediated Inhibition of Msh2-Msh6 Function in DNA Mismatch Repair," published in Biochemistry, March 25, 2009. Three undergraduates from three countries worked on the project in the Hingorani Lab at Wesleyan. They include Francis Noah Biro '09; Markus Wieland, an exchange student from University of Konstanz; and Karan Hingorani, Manju Hingorani's nephew from St. Xaviers College in Mumbai who did volunteer work in the lab. The project focused on how the heavy metal toxin Cadmium (found in cigarette smoke, industrial pollution, batteries, etc.) causes DNA damage…
During a "Who Done It? A DNA Investigation," elementary school aged children sported white lab coats and became "detectives" hoping to solve a crime. The students learned about DNA structure by isolating DNA from wheat germ and comparing DNA samples from a 'crime scene' with the DNA from five suspects. They learn how DNA forensics actually works – just like on the television show "CSI." (more…)
Michael Singer, assistant professor of biology, is the author of “Self-Medication as Adaptive Plasticity: Increased Ingestion of Plant Toxins by Parasitized Caterpillars," published in PLoS ONE, March 2009. PLoS ONE is an open access, online scientific journal from the Public Library of Science. This new article rigorously demonstrates that caterpillars can self-medicate, following up on a previous publication in Nature in 2005. This is the first experimental demonstration of self-medication by an invertebrate animal. This paper also represents the first publication to arise from research funded by a National Science Foundation (NSF) grant awarded to Singer in December 2007. Kevi Mace…
Sitting in front of the Senate panel, Laura Grabel was ready for the “when” and “why” questions. But she knew one of these questions held a lot more potential danger to her future than the other. Grabel, the Lauren B. Dachs Professor of Science and Society, professor of biology, is a renowned stem cell researcher. She is also the co-director of the University of Connecticut Human Embryonic Stem Cell Core Facility, part of a $100 million human stem cell research initiative created by the State of Connecticut in 2006. The stem cell initiative was the state’s response to a veto…