Arginine decarboxylase gene ADC2 regulates fiber elongation in cotton
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ABSTRACT:
ORGANISM(S): Gossypium hirsutum
PROVIDER: GSE184985 | GEO | 2021/10/01
REPOSITORIES: GEO
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Project description:Arginine decarboxylase gene ADC2 regulates fiber elongation in cotton
| PRJNA767324 | ENA
Project description:Our study provides evidence for the mechanism of Glc regulation of cotton fiber elongation, indicating that Glc not only serves as a nutrient, but also serves as a signal to regulate cotton fiber elongation. We also provided evidence that there is crosstalk between Glc and BR, and that the BR signal is located downstream of the Glc signal in the regulation of cotton fiber elongation
2022-02-01 | GSE166628 | GEO
Project description:This experiment was designed to investigate the molecular basis of cotton fiber cell initiation. 32,000 ESTs were sequenced from Gossypium hirsutum L. TM-1 immature ovules (GH_TMO) and developed cotton oligonucleotide microarrays containing ~23,000 unigenes. Transcriptome analyses were performed to compare gene expression changes in laser capture microdissected fiber cell initials (or epidermis) and inner ovules. The gene expression profiles of the fiber cell initials were compared with those of the inner ovules in each developmental stage prior to, right at, and shortly after the initiation of fiber cells. Many genes in various molecular function or biological processes were over- or under-represented between fibers and non-fiber tissues in each developmental stage, suggesting temporal regulation of gene expression during early stages of fiber development. For gene expression studies using a large set cotton oligo-microarray, 4 developmental stages were chosen. To study differential expression during fiber initiation, ovules at -2 DPA, 0 DPA, and 2 DPA were used. One of the fiber elongation stage tissues (7 DPA) was included. In each developmental stage, epidermis was separated from inner ovules and subjected to the hybridization. In addition, epidermis and ovule comparisons were performed individually with 0 DPA as a control point for comparison.
2011-11-02 | E-GEOD-17378 | biostudies-arrayexpress
Project description:Sea-island cotton (Gossypium barbadense L.) has superior fiber quality properties such as length, fineness and strength, while Upland cotton (Gossypium hirsutum L.) is characterized by high yield. To reveal features of Upland cotton and Sea-island cotton fiber cells, differential genes expression profiles during fiber cell elongation and in secondary wall deposits were established using cDNA microarray technology. This research provides a valuable genomic resource to deepen our understanding of the molecular mechanisms of cotton fiber development, and may ultimately lead to improvements in cotton fiber quality and yield.
2012-05-24 | GSE18028 | GEO
Project description:To get glance to the events of the fast elongation and second cell wall synthesis stages of developing cotton fiber cells, we examined expression patterns of over 5000 genes by cDNA array from 3 to 18 DPA in a 3-day interval. Keywords: Time Course
2006-04-12 | GSE4639 | GEO
Project description:Glucose regulates cotton fiber elongation by interacting with brassinosteroid
| PRJNA701442 | ENA
Project description:Sea-island cotton (Gossypium barbadense L.) has superior fiber quality properties such as length, fineness and strength, while Upland cotton (Gossypium hirsutum L.) is characterized by high yield. To reveal features of Upland cotton and Sea-island cotton fiber cells, differential genes expression profiles during fiber cell elongation and in secondary wall deposits were established using cDNA microarray technology. This research provides a valuable genomic resource to deepen our understanding of the molecular mechanisms of cotton fiber development, and may ultimately lead to improvements in cotton fiber quality and yield. 15 samples were prepared for microarray slides hybridized with three biological replicate samples including a swap-dye experiment for each growth stage. Each spot had a repeat in the microarray slideM-oM-<M-^Ltherefore, data for six replicate experiments performed with biologically independent samples.
2012-05-23 | E-GEOD-18028 | biostudies-arrayexpress
Project description:To get glance to the events of the fast elongation and second cell wall synthesis stages of developing cotton fiber cells, we examined expression patterns of over 5000 genes by cDNA array from 3 to 18 DPA in a 3-day interval. RNAs from the 3-, 6-, 9-, 12-, 15-, and 18-DPA fibers were compared to the 9-DPA fiber RNA for time-course analysis. Four biological repeats were carried out including two dye-swap ones.
2006-04-12 | E-GEOD-4639 | biostudies-arrayexpress
Project description:Upland cotton (Gossypium hirsutum L.) is one of the world’s most important fiber crops, accounting for more than 90% of all cotton production. While their wild progenitors have relatively short and coarse, often tan-colored fibers, modern cotton cultivars possess longer, finer, stronger, and whiter fiber. In this study, the wild and cultivated cottons (YU-3 and TM-1) selected show significant differences on fibers at 10 day post-anthesis (DPA), 20 DPA and mature stages at the physiological level. In order to explore the effects of domestication, reveal molecular mechanisms underlying these phenotypic differences and better inform our efforts to further enhance cotton fiber quality, an iTRAQ-facilitated proteomic methods were performed on developing fibers. There were 6990 proteins identified, among them 336 were defined as differentially expressed proteins (DEPs) between fibers of wild versus domesticated cotton. The down- or up-regulated proteins in wild cotton were involved in Phenylpropanoid biosynthesis, Zeatin biosynthesis, Fatty acid elongation and other processes. Association analysis between transcroptome and proteome showed positive correlations between transcripts and proteins at both 10 DPA and 20 DPA. The difference of proteomics had been verified at the mRNA level by qPCR, also at physiological and biochemical level by POD activity determination and ZA content estimation. This work corroborate the major pathways involved in cotton fiber development and demonstrate that POD activity and zeatin content have a great potential related to fiber elongation and thickening.
2017-08-28 | PXD006604 | Pride
Project description:Cotton fibers are seed trichomes, and their development undergoes a series of rapid and dynamic changes from fiber cell initiation, elongation to primary and secondary wall biosynthesis and fiber maturation. Previous studies showed that cotton homologues encoding putative MYB transcription factors and phytohormone responsive factors were induced during early stages of ovule and fiber development. Many of these factors are targets of microRNAs (miRNAs). miRNAs are ~21 nucleotide (nt) RNA molecules derived from non-coding endogenous genes and mediate target regulation by mRNA degradation or translational repression. Here we show that among ~4-million reads of small RNAs derived from the fiber and non-fiber tissues, the 24-nt small RNAs were most abundant and were highly enriched in ovules and fiber-bearing ovules relative to leaves. A total of 28 putative miRNAs families, including 25 conserved and 3 novel miRNAs were identified in at least one of the cotton tissues examined. Thirty-two pre-miRNA hairpins representing 19 unique families were detected in Cotton Gene Indices version 9 (CGI9) using mirCheck. Sequencing, miRNA microarray, and small RNA blot analyses showed that many of these miRNAs differentially accumulated during ovule and fiber development. The cotton miRNAs examined triggered target cleavage in the same predicted sites of the cotton targets in ovules and fibers as that of the orthologous target genes in Arabidopsis. Targets of the potential new cotton miRNAs matched the previously characterized ESTs derived from cotton ovules and fibers. The miRNA targets including those encoding auxin response factors were differentially expressed during fiber development. We suggest that both conserved and new miRNAs play an important role in the rapid and dynamic process of fiber and ovule development in cotton.
2009-11-12 | GSE16332 | GEO