... early urogenital morphogenesis. Regional patterns found in the gonad show parallels in the adjacent mesonephric ducts. Gonad Lightsheet Mesonephros Urogenital IDISCO Tissue clearing 3D imaging Morphogenesis Interactions between tissues are integral to the formation and morphogenesis...

... present evidence that Wnt signaling also patterns the proximal-distal nephron axis. Using the chick mesonephros as a model system, a Wnt ligand was ectopically expressed in the coelomic lining, thereby introducing a source of Wnt signaling that is at right angles to the endogenous Wnt signal...

... and coverslipped using methacrylate mounting medium. Wnt signaling Chick embryo Kidney Mesonephros Podocyte Renal vesicle Vertebrate kidneys are composed of functional units called nephrons ( Saxen, 1987 ; Dressler, 2006 ). Each nephron has several distinct functional...

... their differentiation into kidney tubular tissue. † Author for correspondence (e-mail: tschulth@bidmc.harvard.edu ) * These authors contributed equally to this work 15 5 2006 © 2006. 2006 Kidney Metanephros Mesonephros Chick embryo Mouse Osr1 Odd1 Vertebrate kidney tissue...

...David Grote; Abdallah Souabni; Meinrad Busslinger; Maxime Bouchard The mammalian pro- and mesonephros are transient embryonic kidneys essential for urogenital system development. The nephric (Wolffian) duct,which is a central constituent of both structures, elongates caudally along a stereotypical...

... at E9.5. Dorsal is towards the top and ventral towards the bottom. (C-F) Sagittal sections of the mesonephros (C,D) and metanephros (E,F) regions at E10.5. Anterior is leftwards, posterior rightwards, dorsal is towards the top and ventral is towards the bottom. (G-T) Developing nephrons at E18.5. (G,H...

...Christopher Tilmann; Blanche Capel ABSTRACT In mammals a single gene on the Y chromosome, Sry , controls testis formation. One of the earliest effects of Sry expression is the induction of somatic cell migration from the mesonephros into the XY gonad. Here we show that mesonephric cells...

...Mia Buehr; Subin Gu; Anne McLaren ABSTRACT Testes from 11.5-day-old mouse embryos, with and without attached mesonephroi, were cultured for 7 days. Isolated testes failed to develop well-differentiated testis cords: however, when cultured attached to a mesonephros from either a male or a female...

... chimaeras were produced by transplantation of corresponding quail tissue in the region of somites 18–21. A morphometrical analysis of the mesonephric and gonadal area in cross sections shows that the intermediate mesoderm from somites 16 to 23 develops into the mesonephros. A partial agenesis...