Arnold M. Clark Memorial Lecture

Arnold M. Clark Memorial Lecture


The annual Arnold M. Clark Memorial Lecture brings high-level speakers in the field of biology to share the latest research and discoveries. Presented by the Department of Biological Sciences, the lecture is supported by a gift from Dr. and Mrs. Howard Hudson in honor of Arnold Clark.

About Arnold Clark

Arnold Clark served as a professor of biology at the University of Delaware from 1946 to 1981. He was instrumental in setting in motion the biology education program and was a driving force in the creation of the biology graduate program. His areas of research included developmental genetics, aging, human heredity and radiation biology. His passion was teaching genetics in the classroom, especially to non-majors, and to mentoring undergraduate students. 

2025 Speaker

Mariana Federica Wolfner

Mariana Federica Wolfner

Mariana Federica Wolfner is Cornell’s Distinguished Professor of Arts and Sciences in Molecular Biology & Genetics, a Stephen H. Weiss Presidential Fellow, and is currently Associate Department Chair. Her research focuses on understanding the genetic and molecular bases for important reproductive processes that occur around the time when a sperm fertilizes an egg. Primarily using the Drosophila model, the Wolfner laboratory studies how seminal proteins modulate the physiology and behavior of female insects and (separately) the molecular signals that "activate" an oocyte to initiate embryo development. Mariana received a B.A. in Biology (Genetics concentration) and Chemistry from Cornell, a Ph.D. in Biochemistry from Stanford, and did postdoctoral work at UC San Diego. She has mentored 46 graduate students, 31 postdoctoral scholars, and over 100 undergraduate or high school students in research. Her current teaching includes EvoDevo and (separately) Advanced Genetics.

Mariana has been honored to receive awards and recognition for her research from the Genetics Society of America, the Entomological Society of America, the International Congress of Entomology Council, a MERIT award from NICHD, and from Cornell for her teaching and advising, and for fostering diversity, inclusion, and equity in graduate education. Mariana is a member of the US National Academy of Sciences and of the American Academy of Arts and Sciences and a Fellow of the American Association for the Advancement of Science. In addition to serving on editorial Boards and grants panels Mariana was President of the Genetics Society of America in 2024, Chaired the 2017 Gordon Research Conference on Fertilization & Activation of Development, and was a member of the Scientific Advisory Council for the Frontiers in Reproduction course at Woods Hole/MBL.

Mariana Federica Wolfner

Mariana Federica Wolfner is Cornell’s Distinguished Professor of Arts and Sciences in Molecular Biology & Genetics, a Stephen H. Weiss Presidential Fellow, and is currently Associate Department Chair. Her research focuses on understanding the genetic and molecular bases for important reproductive processes that occur around the time when a sperm fertilizes an egg. Primarily using the Drosophila model, the Wolfner laboratory studies how seminal proteins modulate the physiology and behavior of female insects and (separately) the molecular signals that "activate" an oocyte to initiate embryo development. Mariana received a B.A. in Biology (Genetics concentration) and Chemistry from Cornell, a Ph.D. in Biochemistry from Stanford, and did postdoctoral work at UC San Diego. She has mentored 46 graduate students, 31 postdoctoral scholars, and over 100 undergraduate or high school students in research. Her current teaching includes EvoDevo and (separately) Advanced Genetics.

Mariana has been honored to receive awards and recognition for her research from the Genetics Society of America, the Entomological Society of America, the International Congress of Entomology Council, a MERIT award from NICHD, and from Cornell for her teaching and advising, and for fostering diversity, inclusion, and equity in graduate education. Mariana is a member of the US National Academy of Sciences and of the American Academy of Arts and Sciences and a Fellow of the American Association for the Advancement of Science. In addition to serving on editorial Boards and grants panels Mariana was President of the Genetics Society of America in 2024, Chaired the 2017 Gordon Research Conference on Fertilization & Activation of Development, and was a member of the Scientific Advisory Council for the Frontiers in Reproduction course at Woods Hole/MBL.

Previous events

Headshot photo of Susan Golden

Name: Dr. Susan B. Golden
 

Title: Distinguished Professor of Molecular Biology, Center for Circadian Biology, University of California San Diego
 

Lecture topic: Circadian regulation of gene expression in vivo and in vitro

Headshot photo of Jeffrey Gordon

Name: Dr. Jeffrey Gordon
 

Title: Dr. Robert J. Glaser Distinguished Professor, Washington University in St. Louis
 

Lecture topic: Developing microbiome-directed therapeutics for treating childhood undernutrition 

 

Headshot photo of Van Bennett

Name: Dr. Van Bennett

 

Title: George Barth Geller Distinguished Professor, Duke Cancer Institute, Duke University

 

Lecture topic: New insights from human neurodevelopmental mutations

Headshot photo of Craig Mello

Name: Dr. Craig C. Mello

 

Title: Blais University Chair in Molecular Medicine, Distinguished Professor of RNA Therapeutics Institute, 2006 Nobel Laureate in Physiology or Medicine, University of Massachusetts 

 

Lecture topic: RNA-guided inheritance in C. elegans

 

List of past speakers

2024 - Susan B. Golden- University of California San Diego

2023 - Jeffrey Gordon- Washington University in St. Louis

2022 - Vann Bennett- Duke Cancer Institute

2019 - Craig C. Mello - Howard Hughes Medical Institute, University of Massachusetts

2018 - Anne Carpenter - Massachusetts Institute of Technology, Harvard University

2017 - Joshua R. Sanes - Harvard University

2016 - Joan A. Steitz - Yale University

2015 - Reed E. Pyeritz - University of Pennsylvania

2014 - Rudolf Jaenisch – Massachusetts Institute of Technology

2013 - Elaine A. Ostrander - National Human Genome Research Institute, National Institutes of Health

2012 - John D. Gearhart - University of Pennsylvania

2011 - Don C. Johanson - Arizona State University

2010 - Edwin H. Cook - University of Illinois at Chicago

2009 - Christine E. Seidman - Harvard University

2008 - Marcy E. MacDonald - Harvard University

2007 - Alfred Sommer - Johns Hopkins University