#1: multiple signals pattern the vertebrate neural tube and somite
#2: chick dorsal side, showing NT and somite development
#3: Patterning the vertebrate axis
#4: Drosophila melanogaster ovary
#5: Drosophila melanogaster ovariole, with egg chamber stages
#6: Drosophila melanogaster ovariole
#7: Drosophila melanogaster stage 9 egg chamber
#8: Drosophila melanogaster stage 11 egg chamber
#9: Drosophila early embryos showing bicoid & nanos mRNA and protein distributions
#10: gradient of dorsal protein in nuclei of early fly embryo
#11: Position of germinal vescicle and of gurken mRNA in wild-type (left) and gurken (right)
stage 6 and 8 oocytes |
#12: Model of 2-step gurken signaling, specifying posterior and then dorsal follicle cell
fates
#13: Expression patterns of dpp (top) and twist (left and bottom) in blastoderm and early
gastrula stage embryos
#14: Signaling pathways
#15
#16
#17: expression patterns of rhomboid
#18: Xenopus secondary axis induction (or lack thereof) in injection experiments
#19: Coexpression of TLD and DPP with SOG Leads to SOG Cleavage
#20: orthologous pathways control D-V patterning in vertebrates and arthropods, but the
side at which the main body axis forms is reversed! |