Abstract:
:At the optic chiasm, axons from either eye meet and decide whether to cross contralaterally or turn back ipsilaterally. Here, the guidance ligand Slit and its receptor Robo control not whether axons cross (as in other midline decisions), but where the chiasm forms. Whether axons cross is instead controlled by the transcription factor Zic2 and the guidance receptor EphB1, as shown by two papers in the current issues of Neuron and Cell (Herrera et al. and Williams et al.). Surprisingly, this mechanism is conserved evolutionarily from frogs to mammals.
journal_name
Neuronjournal_title
Neuronauthors
Rasband K,Hardy M,Chien CBdoi
10.1016/s0896-6273(03)00563-4subject
Has Abstractpub_date
2003-09-11 00:00:00pages
885-8issue
6eissn
0896-6273issn
1097-4199pii
S0896627303005634journal_volume
39pub_type
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