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Transcriptome profiling of Pinus radiata branches reveals new insights into compression wood formation in response to gravity stress

ABSTRACT: Compression (CW) and opposite wood (OW) are formed in the uniderside and upperside of conifer branches respectively in response to gravity stress. We investigated genes differentially transcribed between the underside and upside of radiate pine branches using cDNA microarrays with a view to plant gravitropism.

ORGANISM(S): Pinus radiata

PROVIDER: GSE47167 | GEO | 2014/05/30

SECONDARY ACCESSION(S): PRJNA204971

REPOSITORIES: GEO

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Transcriptome profiling of Pinus radiata branches reveals new insights into compression wood formation in response to gravity stress

Project description:Compression (CW) and opposite wood (OW) are formed in the uniderside and upperside of conifer branches respectively in response to gravity stress. We investigated genes differentially transcribed between the underside and upside of radiate pine branches using cDNA microarrays with a view to plant gravitropism. Six trees with well-developed branches were selected from a radiata pine commercial plantation (aged 13 years) located at Bondo, NSW, Australia (35Âº 16' 44.04 S, 148Âº 26' 54.66 E). The largest branch from each tree was further selected for sampling, including three branches sampled in April 2007 (autumn in Bondo) and three sampled in October 2007 (spring). Bark was removed from the base part (about 10 cm in length) of each branch. Developing xylem tissues were scraped from the exposed upperside and underside surface respectively with a sharp chisel. Samples were immediately placed into 50 ml BD FalconTM tubes filled with liquid nitrogen. Gene expression in the underside and upperside of branches was compared using radiata pine cDNA microarrays.

2014-05-30 | E-GEOD-47167 | biostudies-arrayexpress

Identification of candidate genes affecting juvenile wood density in Pinus radiata

Project description:Wood density is a foundamental quality trait for structural timber, bioenergy and pulp industries. We investigated genes differentially transcribed in radiate pine juvneile trees with distinct wood density using cDNA microarrays.

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Defying Gravity: WEEP promotes negative gravitropism in Prunus persica by establishing asymmetric auxin gradients

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