期刊论文详细信息
Developmental Biology
Fate Map of the Avian Anterior Forebrain at the Four-Somite Stage, Based on the Analysis of Quail–Chick Chimeras
Inmaculada Cobos1  Kenji Shimamura1  Luis Puelles1  Salvador Martínez1  John L.R. Rubenstein1 
[1] Department of Morphological Sciences, School of Medicine, University of Murcia, Murcia, 30100, Spain
关键词: retina;    pallidum;    striatum;    dorsal ventricular ridge;    pallium;    amygdala;    septum;    telencephalon;    neural plate;    olfactory bulb;   
DOI  :  10.1006/dbio.2001.0423
学科分类:生物科学(综合)
来源: Academic Press
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【 摘 要 】

Tobetterunderstandthetopologicalorganizationoftheprimordiawithintheanteriorforebrain,wemadeafatemapoftherostralneuralplateinthechick.Homotopicgraftsatthefour-somitestagewereallowedtosurviveforupto9daystoenableananalysisofdefinitivebrainstructures.Insomecases,thetopographyofthegraftedneuroepitheliawascomparedwithgeneexpressionpatterns.Themidpointoftheanteriorneuralridgemapsupontheanteriorcommissureintheclosedneuraltube,continuingconcentricallyintothepreopticareaandopticfield.Non-neuralepitheliumjustinfrontofthismedianridgegivesrisetotheadenohypophysis.Areasforthepresumptivepallialcommissure,septum,andprosencephalicchoroidaltissuelieprogressivelymoreposteriorlyalongtheridge,peripheraltothetelencephalicentopeduncularandstriatopallidalprimordia(thesubpallium),andthepallium(olfactorybulb,dorsalventricularridge,andcorticaldomains).Subpallialstructureslietopologicallyanteriortothepallialformations,andbothareconcentrictotheseptum.Withinthepallium,themajorcorticaldomains(Wulstandcaudolateral,parahippocampal,andhippocampalcortices)appearposteriortothedorsalventricularridge.Theamygdaloidregionappearsconcentricallyacrossboththesubpallialandpallialregions.Thisfatemapshowsthatthearrangementoftheprospectiveprimordiaintheneuralplateisbasicallyaflattenedrepresentationoftopologicalrelationshipspresentinthematurebrain,thoughmarkedphenomenaofdifferentialgrowthandselectivetangentialmigrationofsomecellpopulationscomplicatethehistogeneticconstitutionofthematuretelencephalon.

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