2007
DOI: 10.1007/s11103-006-9114-y
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Transcriptional profiling of wheat caryopsis development using cDNA microarrays

Abstract: The expression of 7,835 genes in developing wheat caryopses was analyzed using cDNA arrays. Using a mixed model analysis of variance (ANOVA) method, 29% (2,237) of the genes on the array were identified to be differentially expressed at the 6 different time-points examined, which covers the developmental stages from coenocytic endosperm to physiological maturity. Comparison of genes differentially expressed between two time-points revealed a dynamic transcript accumulation profile with major re-programming eve… Show more

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Cited by 82 publications
(84 citation statements)
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“…The transition from the cell division phase into the storage phase of endosperm development is accompanied by extensive reprogramming of gene expression patterns (Sreenivasulu et al, 2004;Drea et al, 2005;Laudencia-Chingcuanco et al, 2007;Wan et al, 2008) and appears to be regulated by Suc (Giroux et al, 1994) and the induction of Suc synthase (Borisjuk et al, 2004). However, invertase activity appears to be more important during the early formative phase, coincident with cell proliferation, as shown by the analysis of cell wall invertase in maize (Vilhar et al, 2002) and sorghum (Sorghum bicolor; Jain et al, 2008a).…”
Section: Starchy Endosperm and The Accumulation Of Storage Compoundsmentioning
confidence: 99%
“…The transition from the cell division phase into the storage phase of endosperm development is accompanied by extensive reprogramming of gene expression patterns (Sreenivasulu et al, 2004;Drea et al, 2005;Laudencia-Chingcuanco et al, 2007;Wan et al, 2008) and appears to be regulated by Suc (Giroux et al, 1994) and the induction of Suc synthase (Borisjuk et al, 2004). However, invertase activity appears to be more important during the early formative phase, coincident with cell proliferation, as shown by the analysis of cell wall invertase in maize (Vilhar et al, 2002) and sorghum (Sorghum bicolor; Jain et al, 2008a).…”
Section: Starchy Endosperm and The Accumulation Of Storage Compoundsmentioning
confidence: 99%
“…PINA protein has been detected at 20 DAF (the earliest time point examined; Dubreil et al 1998), increasing to 40 DAF, then plateauing; later studies using enzyme-linked immunosorbent assays (ELISA) could detect PINA protein at 10 DAF and PINB at 15 DAF (Turnbull et al 2003a). The transcriptome analyses of developing wheat seeds appears to be particularly sensitive in detecting expressions at very early time points, for example, from 3 to 9 DPA (Clarke and Rahman 2005;Drea et al 2005;Laudencia-Chingcuanco et al 2007;McIntosh et al 2007). Laudencia-Chingcuanco et al (2007) identified Gsp-1 amongst the genes most differentially expressed and involved in grain filling, along with metabolic or defence functions (e.g., storage proteins, alpha-amylase inhibitors) and expression of PINs and defence proteins correlated with dry weight accumulation.…”
Section: Regulation Of Expression Of Puroindoline and Gsp-1 Genesmentioning
confidence: 99%
“…The transcriptome analyses of developing wheat seeds appears to be particularly sensitive in detecting expressions at very early time points, for example, from 3 to 9 DPA (Clarke and Rahman 2005;Drea et al 2005;Laudencia-Chingcuanco et al 2007;McIntosh et al 2007). Laudencia-Chingcuanco et al (2007) identified Gsp-1 amongst the genes most differentially expressed and involved in grain filling, along with metabolic or defence functions (e.g., storage proteins, alpha-amylase inhibitors) and expression of PINs and defence proteins correlated with dry weight accumulation. Taking the various observations together, it appears that Pin genes are expressed most actively during the middle stages of endosperm development, Gsp-1 genes possibly a little earlier, and transcription then appears to be terminated but all three proteins are present in mature seeds.…”
Section: Regulation Of Expression Of Puroindoline and Gsp-1 Genesmentioning
confidence: 99%
“…Roughly coincident with the onset of endoreduplication and the accumulation of storage compounds, cereal endosperm cells undergo major changes in gene expression patterns (Drea et al 2005;Laudencia-Chingcuanco et al 2007;Liu et al 2008;Sreenivasulu et al 2004;Wan et al 2008). This observation has been used in support of a long-held hypothesis according to which increased gene copy number promotes high levels of gene expression and metabolic output (Larkins et al 2001).…”
Section: Introductionmentioning
confidence: 95%