Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

FT1 and FT2 network analysis in poplar

ABSTRACT: We conducted microarray experiments by comparing constitutive and inducible Flowering Locus T1 (FT1) and FT2 constructs with appropriate controls, followed by the identification of common targets of Pro35S:FT1 and ProHSP:FT1 or Pro35S:FT2 and ProHSP:FT2. Independent samples of leaf tissues were collected from 1- to 2-year-old plants. Each replication represents an individual plant from one of the treatment lines. RNA was extracted from tissues and hybridized on the Affymetrix GeneChip Poplar Genome Array.

ORGANISM(S): Populus tremula x Populus tremuloides

SUBMITTER: Joshua Adams

PROVIDER: E-GEOD-24609 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

FLOWERING LOCUS T duplication coordinates reproductive and vegetative growth in perennial poplar.

Hsu Chuan-Yu CY Adams Joshua P JP Kim Hyejin H No Kyoungok K Ma Caiping C Strauss Steven H SH Drnevich Jenny J Vandervelde Lindsay L Ellis Jeffrey D JD Rice Brandon M BM Wickett Norman N Gunter Lee E LE Tuskan Gerald A GA Brunner Amy M AM Page Grier P GP Barakat Abdelali A Carlson John E JE DePamphilis Claude W CW Luthe Dawn S DS Yuceer Cetin C

Proceedings of the National Academy of Sciences of the United States of America 20110608 26

Annual plants grow vegetatively at early developmental stages and then transition to the reproductive stage, followed by senescence in the same year. In contrast, after successive years of vegetative growth at early ages, woody perennial shoot meristems begin repeated transitions between vegetative and reproductive growth at sexual maturity. However, it is unknown how these repeated transitions occur without a developmental conflict between vegetative and reproductive growth. We report that func ...[more]

PMID: 21653885

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Project description:Five allotetraploid cotton species have adapted, through their transcriptional responses, to unique environments with distinct levels of inherent abiotic stresses. The transcriptional responses of leaf and root tissue in five allotetraploid cotton species (Gossypium hirsutum, G. barbadense, G. tomentosum, G. mustelinum, and G. darwinii) under salt stress have been investigated in this study using cotton long oligonucleotide microarrays. Physiological responses to salinity such as stomatal conductance, ion and osmoprotectant contents were also measured as indicators of imposed stress. Accessions from these five cotton species were hydroponically grown and gradually introduced to a NaCl treatment (15 dS m-1). The microarray results identified 2721 and 2460 differentially expressed genes under salt stress that were significant in leaf and root tissue, respectively. Many of these genes were classified under gene ontology (GO) categories that suggest abiotic stress. These allotetraploid cottons shared transcriptional responses to salinity, but also showed responses that were species-specific. No consistent differences in transcriptional response among the previously estimated phylogenetic branches were found. Stomatal conductance, ion accumulation, and betaine, trigonelline, and trehalose contents also indicated salt stress. This global assessment of transcriptional and physiological responses to salt stress of these cotton species may identify possible gene targets for crop improvement and evolutionary studies of cotton. Keywords: CEGC Cotton oligo salt stress The transcriptional responses of leaf and root tissue in five allotetraploid cotton species (Gossypium hirsutum, G. barbadense, G. tomentosum, G. mustelinum, and G. darwinii) under salt stress have been investigated in this study using cotton long oligonucleotide microarrays. Physiological responses to salinity such as stomatal conductance, ion and osmoprotectant contents were also measured as indicators of imposed stress. Accessions from these five cotton species were hydroponically grown and gradually introduced to a NaCl treatment (15 dS m-1).

Dataset Information

FT1 and FT2 network analysis in poplar

Publications

FLOWERING LOCUS T duplication coordinates reproductive and vegetative growth in perennial poplar.

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