| http://purl.uniprot.org/citations/14522873 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/14522873 | http://www.w3.org/2000/01/rdf-schema#comment | "Hox genes are instrumental in assigning segmental identity in the developing hindbrain. Auto-, cross- and para-regulatory interactions help establish and maintain their expression. To understand to what extent such regulatory interactions shape neuronal patterning in the hindbrain, we analysed neurogenesis, neuronal differentiation and motoneuron migration in Hoxa1, Hoxb1 and Hoxb2 mutant mice. This comparison revealed that neurogenesis and differentiation of specific neuronal subpopulations in r4 was impaired in a similar fashion in all three mutants, but with different degrees of severity. In the Hoxb1 mutants, neurons derived from the presumptive r4 territory were re-specified towards an r2-like identity. Motoneurons derived from that territory resembled trigeminal motoneurons in both their migration patterns and the expression of molecular markers. Both migrating motoneurons and the resident territory underwent changes consistent with a switch from an r4 to r2 identity. Abnormally migrating motoneurons initially formed ectopic nuclei that were subsequently cleared. Their survival could be prolonged through the introduction of a block in the apoptotic pathway. The Hoxa1 mutant phenotype is consistent with a partial misspecification of the presumptive r4 territory that results from partial Hoxb1 activation. The Hoxb2 mutant phenotype is a hypomorph of the Hoxb1 mutant phenotype, consistent with the overlapping roles of these genes in facial motoneuron specification. Therefore, we have delineated the functional requirements in hindbrain neuronal patterning that follow the establishment of the genetic regulatory hierarchy between Hoxa1, Hoxb1 and Hoxb2."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.org/dc/terms/identifier | "doi:10.1242/dev.00802"xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/author | "Henderson C.E."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/author | "Krumlauf R."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/author | "Ruhrberg C."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/author | "Gavalas A."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/author | "Livet J."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/date | "2003"xsd:gYear |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/name | "Development"xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/pages | "5663-5679"xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/title | "Neuronal defects in the hindbrain of Hoxa1, Hoxb1 and Hoxb2 mutants reflect regulatory interactions among these Hox genes."xsd:string |
| http://purl.uniprot.org/citations/14522873 | http://purl.uniprot.org/core/volume | "130"xsd:string |
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