Transcriptome profiling and methyl homeostasis of an Arabidopsis mutant deficient in S-adenosylhomocysteine hydrolase1 (SAHH1).

Plant Molecular Biology
Bo OuyangEdward W T Tsang

Abstract

Transcriptome profiling was conducted to detect genes whose expression is significantly changed in an Arabidopsis mutant deficient in S-adenosylhomocysteine hydrolase1 (SAHH1) during early seedling development when mutant phenotypes could be clearly observed. A total of 2,040 differentially expressed genes were identified, representing approximately 6.7% of the 30,385 DNA oligonucleotide targets on the microarray. Among these differential expressed genes, many were mapped to pathways essential to plant growth and development including those of primary, secondary and hormone metabolisms. A significant proportion of up-regulated genes encoded transposable elements which were mapped to the centromeric and pericentromeric regions of the Arabidopsis chromosomes that were analyzed. A number of down-regulated genes were found to be involved in root hair formation, which might have contributed to the root hair defective phenotype of the mutant. Analysis of genes encoding transposable elements and those associating with root hair development indicated that these genes were highly co-expressed during seedling development. Despite SAHH1 deficiency, the expression of genes encoding methyltransferase remained largely unchanged in the sahh1 ...Continue Reading

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Citations

Aug 18, 2016·Journal of Experimental Botany·Yuan ShenDao-Xiu Zhou
Sep 7, 2016·The Plant Journal : for Cell and Molecular Biology·Moona RahikainenSaijaliisa Kangasjärvi
Nov 28, 2018·The Plant Journal : for Cell and Molecular Biology·Guoping WangWenyi Wang
Aug 18, 2017·Physiologia Plantarum·Moona RahikainenSaijaliisa Kangasjärvi
May 16, 2019·Journal of Experimental Botany·Xin-Yuan HuangDavid E Salt
Aug 12, 2017·Frontiers in Plant Science·Lu YangZhengguo Li
Jan 27, 2021·Current Opinion in Plant Biology·Naseem SamoIva Mozgová
Apr 20, 2021·Frontiers in Cell and Developmental Biology·Pedro VizánSergi Aranda

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