Abstract:
:Organizers are regions of the embryo that can both induce new fates and impart pattern on other regions. So far, surprisingly few organizers have been discovered, considering the number of patterned tissue types generated during development. This may be because their discovery has relied on transplantation and ablation experiments. Here we describe a new approach, using chick embryos, to discover organizers based on a common gene expression signature, and use it to uncover the anterior intestinal portal (AIP) endoderm as a putative heart organizer. We show that the AIP can induce cardiac identity from non-cardiac mesoderm and that it can pattern this by specifying ventricular and suppressing atrial regional identity. We also uncover some of the signals responsible. The method holds promise as a tool to discover other novel organizers acting during development.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Anderson C,Khan MAF,Wong F,Solovieva T,Oliveira NMM,Baldock RA,Tickle C,Burt DW,Stern CDdoi
10.1038/ncomms12656subject
Has Abstractpub_date
2016-08-25 00:00:00pages
12656issn
2041-1723pii
ncomms12656journal_volume
7pub_type
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