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Whole genome sequencing of six strains of Philippine local foxtail millet (Setaria italica) accessions

ABSTRACT: The study aims to identify molecular variations across these six lines of foxtail millet.

INSTRUMENT(S): Illumina NovaSeq 6000

ORGANISM(S): Setaria italica

SUBMITTER: Nelzo Ereful

PROVIDER: E-MTAB-12658 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Whole genome sequencing of two strains of Philippine local foxtail millet (Setaria italica) accessions

Project description:The study aims to identify molecular variations across these six lines of foxtail millet.

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Project description:Transcriptome sequencing of Foxtail millet Setaria italica (Zhang-gu) for different tissues.

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Transcriptome sequencing of Foxtail millet Setaria italica for different tissues

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Transcriptome Analysis of Responses to Saline-Alkali Stress in Two Different Genotypes of foxtail millet (Setaria italica L.)at the Seedling Stage

Project description:We present here a transcriptome dataset of millet seedling leaves based on RNA-seq technology. The purpose of this study was to mine the salt and alkali tolerance genes of millet and further explore the mechanism of salt and alkali tolerance of millet. We selected 18 representative samples and conducted in-depth sequencing using the latest sequencing platform to ensure the accuracy and reliability of the data.

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Whole genome sequencing of six strains of Philippine local foxtail millet (Setaria italica) accessions

Project description:Whole genome sequencing of six strains of Philippine local foxtail millet (Setaria italica) accessions

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Setaria italica cultivar:foxtail millet

Project description:Setaria italica cultivar:foxtail millet Raw sequence reads

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The foxtail millet (Setaria italica) terpene synthase gene family.

Project description:Terpenoid metabolism plays vital roles in stress defense and the environmental adaptation of monocot crops. Here, we describe the identification of the terpene synthase (TPS) gene family of the panicoid food and bioenergy model crop foxtail millet (Setaria italica). The diploid S. italica genome contains 32 TPS genes, 17 of which were biochemically characterized in this study. Unlike other thus far investigated grasses, S. italica contains TPSs producing all three ent-, (+)- and syn-copalyl pyrophosphate stereoisomers that naturally occur as central building blocks in the biosynthesis of distinct monocot diterpenoids. Conversion of these intermediates by the promiscuous TPS SiTPS8 yielded different diterpenoid scaffolds. Additionally, a cytochrome P450 monooxygenase (CYP99A17), which genomically clustered with SiTPS8, catalyzes the C19 hydroxylation of SiTPS8 products to generate the corresponding diterpene alcohols. The presence of syntenic orthologs to about 19% of the S. italica TPSs in related grasses supports a common ancestry of selected pathway branches. Among the identified enzyme products, abietadien-19-ol, syn-pimara-7,15-dien-19-ol and germacrene-d-4-ol were detectable in planta, and gene expression analysis of the biosynthetic TPSs showed distinct and, albeit moderately, inducible expression patterns in response to biotic and abiotic stress. In vitro growth-inhibiting activity of abietadien-19-ol and syn-pimara-7,15-dien-19-ol against Fusarium verticillioides and Fusarium subglutinans may indicate pathogen defensive functions, whereas the low antifungal efficacy of tested sesquiterpenoids supports other bioactivities. Together, these findings expand the known chemical space of monocot terpenoid metabolism to enable further investigations of terpenoid-mediated stress resilience in these agriculturally important species.

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Whole genome sequencing of two strains of Philippine local foxtail millet (Setaria italica) accessions

Project description:Whole genome sequencing of two strains of Philippine local foxtail millet (Setaria italica) accessions

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Transcriptome profiling of foxtail millet (Setaria italica) pollen and anther.

Project description:Pollen development and germination play a crucial role in the sexual reproduction of plants. This study analysis of transcriptional dynamics of foxtail millet pollen with other tissues and organs (ovule, glume, seedling and root) through RNA-sequencing revealed that a total of 940 genes were up-regulated in foxtail millet pollen. Based on this, we analyzed the genes involved in pollen tube growth of receptor kinases and small peptides, calcium signaling, small G proteins, vesicle transport, cytoskeleton, cell wall correlation, and transcription factors that are up-regulated in pollen. At the same time, we compared the gene expression of foxtail millet pollen and mature anthers, and found that a large number of transcription factors were specific expressed in mature anthers. In addition, we verified the accuracy of the transcriptome data using RT-qPCR. Finally, employed the antisense Oligonucleotide (as-ODN) system found that inhibiting SiPME67 expression would cause abnormal growth of pollen tube subapical. In summary, we preliminarily analyzed the genes that were up-regulated in foxtail millet pollen, which provided a reference for understanding the male sterility mechanism of foxtail millet in the future and theoretical basis for creating new male sterility lines.

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Genome-wide characterization of microRNA in foxtail millet (Setaria italica).

Project description:BackgroundMicroRNAs (miRNAs) are a class of short non-coding, endogenous RNAs that play key roles in many biological processes in both animals and plants. Although many miRNAs have been identified in a large number of organisms, the miRNAs in foxtail millet (Setaria italica) have, until now, been poorly understood.ResultsIn this study, two replicate small RNA libraries from foxtail millet shoots were sequenced, and 40 million reads representing over 10 million unique sequences were generated. We identified 43 known miRNAs, 172 novel miRNAs and 2 mirtron precursor candidates in foxtail millet. Some miRNA*s of the known and novel miRNAs were detected as well. Further, eight novel miRNAs were validated by stem-loop RT-PCR. Potential targets of the foxtail millet miRNAs were predicted based on our strict criteria. Of the predicted target genes, 79% (351) had functional annotations in InterPro and GO analyses, indicating the targets of the miRNAs were involved in a wide range of regulatory functions and some specific biological processes. A total of 69 pairs of syntenic miRNA precursors that were conserved between foxtail millet and sorghum were found. Additionally, stem-loop RT-PCR was conducted to confirm the tissue-specific expression of some miRNAs in the four tissues identified by deep-sequencing.ConclusionsWe predicted, for the first time, 215 miRNAs and 447 miRNA targets in foxtail millet at a genome-wide level. The precursors, expression levels, miRNA* sequences, target functions, conservation, and evolution of miRNAs we identified were investigated. Some of the novel foxtail millet miRNAs and miRNA targets were validated experimentally.

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