Transcriptomics

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Intra-species comparisons


ABSTRACT: Avian beaks show extreme species-specific variability in morphology, though they develop from the same primordial structures. In both humans and birds, cranial neural crest cells are the primary source of mesenchyme for the frontonasal prominence; previous work has shown that these cells contain molecular information that regulate species-specific facial variation. To determine the molecular basis of avian craniofacial patterning, we have gene expression profiled micro-dissected cranial neural crest cells from the frontonasal prominence of three bird species (chickens, quails, and ducks) during embryonic development. These changes in gene expression were measured on a custom built, cross-species, long oligonucleotide microarray that interrogates the vast majority of transcription factor (TF) genes plus a wide variety of signaling pathways. Samples were isolated at two developmental stages, before (Hamburger Hamilton stage [HH] 20) and after (HH25) morphological distinctions between the species are evident. Keywords: developmental time point comparison

ORGANISM(S): Coturnix japonica Mus musculus Homo sapiens Anas platyrhynchos Gallus gallus

PROVIDER: GSE11030 | GEO | 2009/12/03

SECONDARY ACCESSION(S): PRJNA108807

REPOSITORIES: GEO

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