...Cristina Calestani; Jonathan P. Rast; Eric H. Davidson New secondary mesenchyme specific genes, expressed exclusively in pigment cells, were isolated from sea urchin embryos using a differential screening of a macroarray cDNA library. The comparison was performed between mRNA populations of embryos...

... macroarrayed library, we have overcome some of these molecular roadblocks to identify a broad range of new markers for premigratory and migratory neural crest. In addition to known genes, nearly 20% of the genes identified in our screen have no known homologues in the database and likely represent novel gene...