Valérie Ledent

TL;DR: An extensive search for bHLH sequences in the completely sequenced genomes of Caenorhabditis elegans and Drosophila melanogaster found 35 and 56 different genes, respectively, which may represent the complete set of b HLH of these organisms.

TL;DR: The first evolutionary analysis of a whole superfamily of transcription factors, the basic helix-loop-helix (bHLH) proteins, at the scale of the whole metazoan kingdom is reported, suggesting that these features may be extended to other developmental gene families and reflect a general trend in the evolution of the developmental gene repertoires of metazoans.

TL;DR: It is suggested that the diversification of bHLH genes is directly linked to the acquisition of multicellularity, and that important diversified of the b HLH repertoire occurred independently in animals and plants.

TL;DR: This article examined how the posterior lateral line of the zebrafish grows and evolves from the simple midbody line present at the end of embryogenesis into the complex adult pattern, and showed that differentiated neuromasts migrate ventrally, and eventually generate "stitches" by successive bisections.

TL;DR: In this paper, the authors performed a detailed study of bHLH genes during nervous system development in the polychaete annelid, Platynereis dumerilii, an organism which is evolutionary distant from both Drosophila and vertebrates.