Please note: The University of Texas Health Science Center at San Antonio will now be called "UT Health San Antonio."

Search Program Faculty/Research

John R. McCarrey, Ph.D.



Dr. John R. McCarrey earned his Ph.D. in Genetics from the University of California, Davis and completed postdoctoral training with Dr. Susumu Ohno at the City of Hope in Duarte, California. He was a faculty member at the Johns Hopkins School of Public Health before moving to the Southwest Foundation for Biomedical Research in San Antonio in 1991. He then moved to the University of Texas at San Antonio in 2001, where he is currently Professor in the Department of Biology. 

Dr. McCarrey was named the Robert and Helen Kleberg Distinguished Chair in Cellular & Molecular Biology in 2012, and he is the recipient of this year’s SSR Distinguished Service Award. Research in the McCarrey laboratory is centered on mammalian germ cells and stem cells. Dr. McCarrey’s group makes use of several experimental models, including the mouse, the baboon, and the opossum. 

The lab is interested in the epigenetic regulation of cell functions, including determination of cell fates, maintenance of genetic integrity, regulation of gene expression, genomic imprinting, X-chromosome inactivation and meiotic sex chromosome inactivation. 

Additional interests in the lab include epigenetic defects (“epimutations”) induced by methods of assisted reproduction, transgenerational epigenetic inheritance, the evolution of tissue-specific gene expression in mammalian species, and developing the baboon as a model system for testing stem cell-based therapeutic applications.

Selected Publications

Arango NA, Li L, Dabir D, Nicolau F, Pieretti-Vanmarcke R, Koehler C, McCarrey JR, Lu N, Donahoe PK. Meiosis I arrest abnormalities lead to severe oligozoospermia in meiosis 1 arresting protein (M1ap)-deficient mice. Biol Reprod. 2013 Mar 28;88(3):76.

Murphey P, McLean DJ, McMahan CA, Walter CA, McCarrey JR. Enhanced genetic integrity in mouse germ cells. Biol Reprod. 2013 Jan 3;88(1):6.

Ortogero N, Hennig GW, Langille C, Ro S, McCarrey JR, Yan W. Computer-assisted annotation of murine Sertoli cell small RNA transcriptome. Biol Reprod. 2013 Jan 3;88(1):3.

Skinner MK, Haque CG, Nilsson E, Bhandari R, McCarrey JR. Environmentally induced transgenerational epigenetic reprogramming of primordial germ cells and the subsequent germ line. PLoS One. 2013 Jul 15;8(7):e66318.

Zhou J, McCarrey JR, Wang PJ. A 1.1-Mb segmental deletion on the X chromosome causes meiotic failure in male mice. Biol Reprod. 2013 Jun 27;88(6):159.



Ph.D., Genetics, University of California, Davis



Phone: 210-458-4507

Research Profile
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Graduate Students

Christine Hernandez (MS)
Cellular & Structural Biology