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Deep sequencing of the degradome cDNA library in soybean

ABSTRACT: We deep sequenced a degradome library constructed from different soybean tissues. As a result, 19,830,257 represented 5,337,590 distinct signatures were obtained. 70.98% of the signatures were assigned to one soybean cDNA sequence and 24.05% matched with two cDNA sequences. 428 potential targets of small RNAs and 25 novel miRNA families were identified in soybean. A total of 211 potential miRNA targets including 150 conserved miRNA targets and 69 soybean-specific miRNA targets were identified. The signatures distribution on soybean primary miRNAs (pri-miRNAs) showed that most of the pri-miRNAs had the characteristic pattern of Dicer processing. The TAS3 small RNAs (siRNAs) biogenesis was conserved in soybean and nine Auxin Response Factors (ARFs) were identified as the TAS3 siRNA targets. The global identification of miRNAs targets would contribute to the functional research of the miRNA in soybean. one sample, We deep sequenced a degradome library constructed from different soybean tissues.

ORGANISM(S): Glycine max

SUBMITTER: Hu Zheng

PROVIDER: E-GEOD-33379 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Deep sequencing of the degradome cDNA library in soybean

Project description:We deep sequenced a degradome library constructed from different soybean tissues. As a result, 19,830,257 represented 5,337,590 distinct signatures were obtained. 70.98% of the signatures were assigned to one soybean cDNA sequence and 24.05% matched with two cDNA sequences. 428 potential targets of small RNAs and 25 novel miRNA families were identified in soybean. A total of 211 potential miRNA targets including 150 conserved miRNA targets and 69 soybean-specific miRNA targets were identified. The signatures distribution on soybean primary miRNAs (pri-miRNAs) showed that most of the pri-miRNAs had the characteristic pattern of Dicer processing. The TAS3 small RNAs (siRNAs) biogenesis was conserved in soybean and nine Auxin Response Factors (ARFs) were identified as the TAS3 siRNA targets. The global identification of miRNAs targets would contribute to the functional research of the miRNA in soybean.

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degradome sequence data

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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

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