The amphibian Spemann organizer is subdivided in trunk and head organizer and it is unclear how this division is regulated. The Xenopus trunk organizer expresses anti-dorsalizing morphogenetic protein (ADMP), a potent organizer antagonist. We show that ADMP represses head formation during gastrulation and that its expression is activated by BMP antagonists. A specifically acting dominant-negati...

Dan is the founding member of the Dan family of secreted cytokines. All members of this family--which includes Gremlin, Cerberus, Dante, PRDC, and several genes identified as expressed sequence tags in the mouse--characterized to date have been shown to antagonize signaling by the bone morphogenetic protein (BMP) family. During mouse embryogenesis, Dan is expressed in a restricted and dynamic p...

The bone morphogenetic proteins (BMPs) are secreted ligands largely known for their functional roles in embryogenesis and tissue development. A number of structurally diverse extracellular antagonists inhibit BMP ligands to regulate signaling. The differential screening-selected gene aberrative in neuroblastoma (DAN) family of antagonists represents the largest group of BMP inhibitors; however,...

[1] The 2016 NASA InSight lander is the first planetary mission designed to study the deep interior of Mars. InSight’s Seismic Experiment for Interior Structure (SEIS) package will quantify global and regional seismic activity and determine parameters like core properties, mantle composition, and Martian lithospheric thickness. An improved understanding of the location, magnitude, and frequency...

Introduction: The Shallow Radar instrument (SHARAD) on the Mars Reconnaissance Orbiter (MRO) has been successful at penetrating into icy deposits [1-3], but most of the rocky units are opaque to SHARAD. The main exceptions to this are the youngest major volcanic surfaces, Cerberus Fossae 2 and 3 units and Amazonis Planitia 2 north unit [4]. We suggest that these units have low radar loss becaus...

Continuing surveys on the pselaphine fauna in China have revealed four undescribed species of the genus Batrisodes: Batrisodes angustelytratus sp. n. (with Pachycondyla ant) and B. longwangshanus sp. n. from Zhejiang, B. bamian sp. n. (with Pseudolasius ant) from Hunan, and B. songxiaobini sp. n. (with Formica ant) from Yunnan. The genus Batrisodellus is placed as a junior synonym of Batrisodes...