Highlights • Solving nervous system evolution requires cross-species comparison of neuronal
types. • Neuronal types are commonly defined by their specific structure and function. • We …

The Nereid Platynereis dumerilii (Audouin and Milne Edwards (Annales des Sciences Naturelles
1:195–269, 1833) is a marine annelid that belongs to the Nereididae, a family of errant …

Animal bodies are composed of cell types with unique expression programs that implement
their distinct locations, shapes, structures, and functions. Based on these properties, cell …

The comparative study of cell types is a powerful approach toward deciphering animal
evolution. To avoid selection biases, however, comparisons ideally involve all cell types present …

During the course of evolution, animals have become increasingly complex by the addition of
novel cell types and regulatory mechanisms. A prime example is represented by the lateral …

Animal bodies comprise diverse arrays of cells. To characterize cellular identities across an
entire body, we have compared the transcriptomes of single cells randomly picked from …

Retinoic acid (RA) is an important intercellular signaling molecule in vertebrate development,
with a well-established role in the regulation of hox genes during hindbrain patterning and …

The mammary epithelium undergoes cyclical periods of cellular proliferation, differentiation,
and regression. During lactation, the signal transducer and activator of transcription factor (…

Steroid receptors were classically described for regulating transcription by binding to target
gene promoters. However, genome-wide studies reveal that steroid receptors-binding sites …

The biological activity of two seven-membered A-ring (A-homo) analogues of progesterone
was evaluated by transactivation assays in Cos-1 cells and by determination of Bcl-x L …