Planarians can undergo dramatic changes in body size and regenerate their entire body plan
from small pieces after cutting. This remarkable morphological plasticity has made them an …

The origin of chordates has been debated for more than a century, with one key issue being
the emergence of the notochord. In vertebrates, the notochord develops by convergence …

… m Dorsal view of newly hatched juvenile planarian. Smednos expression is observed in …
Scale bars represent 1 mm in b and f, 1.5 mm in j and k, 800 μm in g, 700 μm in l and m, 300 …

… Mette Handberg-Thorsager, Enrique Fern嫕dez contributed equally to this manuscript. We
… Maden, M.: The regeneration of positional information in the amphibian limb. J Theor Biol, …

… We show that M cells, after having produced the four larval segments, undergo an abrupt
transition in their cycling behavior and start dividing much more slowly and symmetrically. …

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 benefit of having dual-sided illumination in our OpenSPIM was tested on fixed M.
crozieri embryos stained with the nucleic acid marker SytoxGreen. In single-sided illumination …

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 …

Background During early development, patterns of cell division—embryonic cleavage—accompany
the gradual restriction of blastomeres to specific cell fates. In Spiralia, which include …

Few studies have examined the diversity of freshwater planarians in the Iberian Peninsula
and Greece. We have searched extensively for specimens, mainly in the Iberian Peninsula, …