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Functional & Integrative Genomics

, Volume 2, Issue 1–2, pp 13–27 | Cite as

DNA array profiling of gene expression changes during maize embryo development

  • Jian-Ming Lee
  • Mark E. Williams
  • Scott V. Tingey
  • Antoni J. Rafalski
Original Paper

Abstract

We are using DNA microarray-based gene expression profiling to classify temporal patterns of gene expression during the development of maize embryos, to understand mRNA-level control of embryogenesis and to dissect metabolic pathways and their interactions in the maize embryo. Genes involved in carbohydrate, fatty acid, and amino acid metabolism, the tricarboxylic acid (TCA) cycle, glycolysis, the pentose phosphate pathway, embryogenesis, membrane transport, signal transduction, cofactor biosynthesis, photosynthesis, oxidative phosphorylation and electron transfer, as well as 600 random complementary DNA (cDNA) clones from maize embryos, were arrayed on glass slides. DNA arrays were hybridized with fluorescent dye-labeled cDNA probes synthesized from kernel and embryo poly(A)+RNA from different stages of maize seed development. Several characteristic developmental patterns of expression were identified and correlated with gene function. Patterns of coordinated gene expression in the TCA cycle and glycolysis were analyzed in detail. The steady state level of poly(A)+ RNA for many genes varies dramatically during maize embryo development. Expression patterns of genes coding for enzymes of fatty acid biosynthesis and glycolysis are coordinately regulated during development. Genes of unknown function may by assigned a hypothetical role based on their patterns of expression resembling well characterized genes. Electronic supplementary material to this paper can be obtained by using the Springer LINK server located at http://dx.doi.org/10.1007/s10142-002-0046-6.

Microarray Gene expression Maize Embryo development 

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Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • Jian-Ming Lee
    • 1
  • Mark E. Williams
    • 1
  • Scott V. Tingey
    • 1
  • Antoni J. Rafalski
    • 1
  1. 1.DuPont Crop Genetics, Delaware Technology Park, Suite 200, 1 Innovation Way P.O.Box 6104, Newark, DE 19714USA

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