Expression data confirm and extend existing knowledge Expression data confirm and extend existing knowledge. lacZ reporter gene expression in Sgol2tm1aWtsi/+ mice in the following tissues: (A) testis (T); (B) ovary (black arrows); (C) Peyer's patches (black arrowhead); and (D) mesenteric lymph node (red arrows). Expression data confirm and extend existing knowledge.lacZ reporter gene expression in Sgol2tm1aWtsi/+ mice in the following tissues: (A) testis (T); (B) ovary (black arrows); (C) Peyer's patches (black arrowhead); and (D) mesenteric lymph node (red arrows). (E,F) Expression in Apootm1bWtsi/Y mice in heart (E) and pancreas (F). Elizabeth Tuck et al. Dis. Model. Mech. 2015;8:1467-1478 © 2015. Published by The Company of Biologists Ltd