3:00 PM 17. EXPRESSION OF GERMLINE MARKERS IN ADULT FEMALE ZEBRAFISH BLOOD: EVIDENCE FOR GERM CELL MIGRATION VIA PERIPHERAL CIRCULATION. Wood, Antony¹, Tilly, Jonathan¹, ¹ Massachusetts General Hospital, Harvard Medical School, Boston, MA

3:15 PM 18. AKT LOCALIZES IN THE MEIOTIC NUCLEUS AND PHOSPHORYLATES H2AX DURING SPERMATOGENESIS. Feng, Li-Xin ¹, Geng, Yixun¹, Dym, Martin¹, ¹ Georgetown University, Washington, DC

3:30 PM 19. ABSENCE OF THE DNA/RNA-BINDING PROTEIN MSY2 RESULTS IN MALE AND FEMALE INFERTILITY. Yang, Juxiang¹, Medvedev, Sergey¹, Yu, Junying¹, Tang, Linda², Agno, Julio², Matzuk, Martin², Schultz, Richard¹, Hecht, Norman¹, ¹ University of Pennsylvania, Philadelphia, PA² Baylor College of Medicine, Houston, TX

3:45 PM 20. UNIQUE MEIOTIC FUNCTIONS OF THE AURORA-B KINASE IN MAMMALIAN SPERMATOGENESIS. Kimmins, Sarah¹, Crosio, Claudia ¹, Kotaja, Noora ¹, Hirayama, Jun ¹, Höög, Christer ², Sassone-Corsi, Paolo¹, ¹ Université Louis Pasteur, CNRS, INSERM, Strasbourg, France² Karolinska Institute, Stockholm, Sweden

4:00 PM 21. IN VIVO ANALYSIS OF PROTEIN-DNA INTERACTIONS AT THE PGK2 PROMOTER DURING SPERMATOGENESIS IN THE MOUSE. Geyer, Chris¹, Yoshioka, Hirotaka², McCarrey, John^{1, 2}, ¹ University of Texas Health Science Center at San Antonio, San Antonio, TX² University of Texas at San Antonio, San Antonio, TX

4:15 PM 22. A 50-BP REGION OF THE SP-10 INSULATOR IS SUFFICIENT FOR ENHANCER-BLOCKING FUNCTION IN TRANSGENIC MICE. Urekar, Craig¹, Reddi, Prabhakara ¹, ¹ University of Virginia School of Medicine, Charlottesville, VA

4:30 PM 23. EFFECT OF VASCULAR ENDOTHELIAL GROWTH FACTOR ON SPERMATOGENESIS IN XENOGRAFTED BOVINE TESTIS TISSUE. Schmidt, Jonathan ¹, de Avila, Jeanene¹, McLean, Derek¹, ¹ Washington State University, Pullman, WA

4:45 PM 24. EXOGENOUS GONADOTROPIN SUPPORTS ACCELERATED MATURATION OF INFANT PRIMATE TESTIS TISSUE XENOGRAFTS IN MICE. Rathi, Rahul¹, Zeng, Wenxian¹, Honaramooz, Ali ¹, Meyers, Stuart², Dobrinski, Ina¹, ¹ University of Pennsylvania, Kennett Square, PA² University of California, Davis, CA