Genetics

Image: iStock/piyaset

Penn Vet researchers developed the Cryptosporidium single-cell atlas, revealing which genes are expressed at which points across the parasite’s life cycle. On the left, the atlas shows parasites replicating asexually in green, with males in blue and females in pink. On the right, micrographs of the stages are shown, with their nuclei highlighted in green.

(Image: Boris Striepen)

Illustration of the 55LCC complex.

(Image: Courtesy of Cameron Baines/Phospho Biomedical Animation)

Image: iStock/Mohammed Haneefa Nizamudeen

Image: iStock/DragonImages

Collaborators on the Malawi Longitudinal Study of Families and Health visited the University of Pennsylvania in October for a project meeting. Pictured are Lauren Schmitz (University of Wisconsin-Madison), Namrata Ray (Penn), Hans-Peter Kohler (Penn), Kondwani Katundu (Kamuzu University of Health Sciences in Malawi), Kazione Kulisewa (Kamuzu University), Iliana V. Kohler (Penn), and Victor Mwapasa (Kamuzu University).

(Image: Eric Sucar)

PIK Professor Sarah Tishkoff led a collaborative team of researchers who have discovered key insights into the molecular basis of skin color differences among Africans. “There’s so much genetic diversity in African populations, but they’ve also been historically underrepresented in studies,” Tishkoff says. “Our findings offer more information on these populations and paint a clearer picture of human evolution.”

(Image: Courtesy of Sarah Tishkoff and Alessia Ranciaro)