Gossypium hirsutum
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA175921 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR576119.fastq.gz | Fastqsanger.gz | |||
| SRR576120.fastq.gz | Fastqsanger.gz | |||
| SRR576121.fastq.gz | Fastqsanger.gz | |||
| SRR576122.fastq.gz | Fastqsanger.gz |
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Project description:MicroRNAs (miRNAs) are endogenous non-coding ~21 nucleotide (nt) RNAs that regulate gene expression at transcriptional and post-transcriptional levels in plants and animals. They play an important role in development, abiotic stress responses or pathogen responses. miRNAs with their related target genes have been widely studied in model plants?and increasing studies have been performed on some crops?however, the number of identified miRNAs in cotton was limited, and global identification of related targets through degradome sequencing has not been developed previously. In this study, we globally identified small RNAs and their related target genes during cotton somatic embryogenesis by the high throughput small RNA and degradome sequencing technology using fresh hypocotyls and EC (embryogenic calli) of Gossypium hirsutum YZ1. A total of 36 differentially expressed conserved miRNA families of which 19 miRNA families represented by 29 precursors and 25 novel miRNAs were identified, with star sequences of 20 known miRNAs and 2 novel miRNAs discovered. 234 genes in EC and 322 genes in CK were identified as targets of 23 and 30 known miRNA families, and 16 genes were found as targets of 8 novel miRNAs. The expression profiles of several miRNAs and their targets were verified by qRT-PCR and 5’RACE were further used to validate the sliced sites of the targets. Interestingly, four TAS3 D6 and D7 were also found in both degradome libaries which can perfectly match their precursors. The profiling of the miRNAs and their target genes provides more information about the regulatory network of miRNAs during somatic embryogenesis in cotton. small RNA and degradome sequencing of CK(fresh hypocotyls) and EC (embryogenic calli) of Gossypium hirsutum YZ1
2013-03-08 | E-GEOD-41132 | biostudies-arrayexpress
Project description:MicroRNAs (miRNAs) are endogenous non-coding ~21 nucleotide (nt) RNAs that regulate gene expression at transcriptional and post-transcriptional levels in plants and animals. They play an important role in development, abiotic stress responses or pathogen responses. miRNAs with their related target genes have been widely studied in model plants，and increasing studies have been performed on some crops，however, the number of identified miRNAs in cotton was limited, and global identification of related targets through degradome sequencing has not been developed previously. In this study, we globally identified small RNAs and their related target genes during cotton somatic embryogenesis by the high throughput small RNA and degradome sequencing technology using fresh hypocotyls and EC (embryogenic calli) of Gossypium hirsutum YZ1. A total of 36 differentially expressed conserved miRNA families of which 19 miRNA families represented by 29 precursors and 25 novel miRNAs were identified, with star sequences of 20 known miRNAs and 2 novel miRNAs discovered. 234 genes in EC and 322 genes in CK were identified as targets of 23 and 30 known miRNA families, and 16 genes were found as targets of 8 novel miRNAs. The expression profiles of several miRNAs and their targets were verified by qRT-PCR and 5’RACE were further used to validate the sliced sites of the targets. Interestingly, four TAS3 D6 and D7 were also found in both degradome libaries which can perfectly match their precursors. The profiling of the miRNAs and their target genes provides more information about the regulatory network of miRNAs during somatic embryogenesis in cotton.
2013-03-08 | GSE41132 | GEO
Project description:Identification and Comparative Analysis of Cotton miRNA Target Genes using Degradome Sequencing
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Project description:This study was initiated with the objective of identifying the anther/tapetum specific promoters from cotton floral buds. Cotton is an important commercial crop. Hybrid cotton varieties are developed to obtain improved yield and fiber quality. Most of the hybrid seed production in cotton is carried out by hand emasculation, which requires large amount of manpower, resulting in high cost of hybrid seed. We are developing barnase-barstar based male sterility system, which would be a better alternative for hybrid development. The tapetum specific promoters are main requirement for such a system. The study was thus carried out to identify genes expressed in the anthers.
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Project description:Background: Dwarf cottons are more resistant to damage from wind and rain and associated with stable, increased yields, and also desirable source for breeding the machine harvest varieties. In an effort to uncover the transcripts and miRNA networks involved in plant height, the transcriptome and small RNA sequencing were performed based on dwarf mutant Ari1327 (A1), tall-culm mutant Ari3697 (A3) and wild type Ari971 (A9) in Gossypium hirsutum. Results: The transcriptome sequencing analysis showed that the enriched pathways of top 3 differentially expressed genes (DEGs) were categorized as carotenoid biosynthesis, plant-pathogen interaction and plant hormone signal transduction in both A1-A9 and A3-A9. The ABA and IAA related factors were differentially expressed in the mutants. Importantly, we found the lower expressed SAUR and elevated expressed GH3, and ABA related genes such as NCED and PP2C maybe relate to reduced growth of the plant height in Ari1327 which is consistent with the higher auxin and ABA content in this mutant. Furthermore, miRNA160 targeted to the auxin response factor (ARF) and miRNA166 (gma-miR166u and gma-miR166h-3p) targeted to ABA responsive element binding factor were related to the mutation in cotton. We have noticed that the cell growth related factors (smg7 targeted by gra-miR482 and 6 novel miRNAs and Pectatelyases targeted by osa-miR159f), the redox reactions related factors (Cytochrome P450 targeted by miR172) and MYB genes targeted by miR828, miR858 and miR159 were also involved in plant height of the cotton mutants. A total of 226 conserved miRNAs representing 32 known miRNA families were obtained, and 38 novel miRNAs corresponding to 23 unique RNA sequences were identified. Total 531 targets for 211 conserved miRNAs were obtained. Using PAREsnip, 27 and 29 miRNA/target conserved interactions were validated in A1-A9 and A3-A9, respectively. Furthermore, miRNA160, miRNA858 and miRNA172 were validated to be up-regulated in A1-A9 but down-regulated in A3-A9, whereas miRNA159 showed the opposite regulation. Conclusions: This comprehensive interaction of the transcriptome and miRNA at tall-culmand dwarf mutant led to the discovery of regulatory mechanisms in plant height. It also provides the basis for in depth analyses of dwarf mutant genes for further breeding of dwarf cotton. Total RNA was purified from stem apexes of three samples at the fifth true leaf stages and sequenced deeply using Illumina HiSeq 2000 system.
2016-07-30 | E-GEOD-71608 | biostudies-arrayexpress
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