Transcriptomics

Dataset Information

21

Zea mays Transcriptome or Gene expression


ABSTRACT: Quality Protein Maize (QPM) was created by selecting for genetic modifiers that convert the starchy endosperm of an opaque2 (o2) mutant to a hard, vitreous phenotype. Genetic analysis has shown there are multiple, unlinked o2 modifiers (Opm), but their identity and mode of action are unknown. A microarray hybridization performed with RNA obtained from true breeding o2 progeny with vitreous and opaque kernel phenotypes identified a small group of differentially expressed genes, some of which map at or near the Opm QTLs. Keywords: Genetic modification Overall design: Compared 18 days after pollination endosperm transcript profiles in true breeding modified (vitreous; V) and non-modified (opaque; O) opaque 2 kernels. Used four vitreous biological reps (V1-V4) and four opaque biological reps (O1-O4). Each biological rep is a pool of 25 kernels representing 5 kernels form each of 5 uniform phenotype ears (vitreous or opaque). Four arrays used: Array 1= V1 vs O1, Array 2 = V2 vs O2, Array 3 = V3 vs O3, Array 4 = V4 vs O4

INSTRUMENT(S): Maize oligonucleotide array 46K version

ORGANISM(S): Zea mays  

SUBMITTER: David Richard Holding   

PROVIDER: GSE10449 | GEO | 2008-02-08

SECONDARY ACCESSION(S): PRJNA108001

REPOSITORIES: GEO

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