Project description:Background: Vicia sativa (the common vetch) possesses a predominant zygomorphic flower and belongs to the subfamily Papilionoideae, which is related to Arabidopsis thaliana in the eurosid II clade of the core eudicots. Each vetch flower consists of 21 concentrically arranged organs: the outermost five sepals, then five petals and ten stamens, and a single carpel in the center. Methodology/Principal Findings: We explored the floral transcriptome to examine a genome-scale genetic model of the zygomorphic flower of vetch. mRNA was obtained from an equal mixture of six floral organs, leaves and roots. De novo assembly of the vetch transcriptome using Illumina paired-end technology produced 71,553 unigenes with an average length of 511 bp. We then compared the expression changes in the 71,553 unigenes in the eight independent organs through RNA-Seq Quantification analysis. We predominantly analyzed gene expression patterns specific to each floral organ and combinations of floral organs that corresponded to the traditional ABC model domains. Comparative analyses were performed in the floral transcriptomes of vetch and Arabidopsis, and genomes of vetch and Medicago truncatula. Conclusions/Significance: Our comparative analysis of vetch and Arabidopsis showed that the vetch flowers conform to a strict ABC model. We analyzed the evolution and expression of the TCP gene family in vetch at a whole-genome level, and several unigenes specific to three different vetch petals, which might offer some clues toward elucidating the molecular mechanisms underlying floral zygomorphy. Our results provide the first insights into the genome-scale molecular regulatory network that controls the evolution and development of the zygomorphic flower in Papilionoideae.
Project description:Background: Vicia sativa (the common vetch) possesses a predominant zygomorphic flower and belongs to the subfamily Papilionoideae, which is related to Arabidopsis thaliana in the eurosid II clade of the core eudicots. Each vetch flower consists of 21 concentrically arranged organs: the outermost five sepals, then five petals and ten stamens, and a single carpel in the center. Methodology/Principal Findings: We explored the floral transcriptome to examine a genome-scale genetic model of the zygomorphic flower of vetch. mRNA was obtained from an equal mixture of six floral organs, leaves and roots. De novo assembly of the vetch transcriptome using Illumina paired-end technology produced 71,553 unigenes with an average length of 511 bp. We then compared the expression changes in the 71,553 unigenes in the eight independent organs through RNA-Seq Quantification analysis. We predominantly analyzed gene expression patterns specific to each floral organ and combinations of floral organs that corresponded to the traditional ABC model domains. Comparative analyses were performed in the floral transcriptomes of vetch and Arabidopsis, and genomes of vetch and Medicago truncatula. Conclusions/Significance: Our comparative analysis of vetch and Arabidopsis showed that the vetch flowers conform to a strict ABC model. We analyzed the evolution and expression of the TCP gene family in vetch at a whole-genome level, and several unigenes specific to three different vetch petals, which might offer some clues toward elucidating the molecular mechanisms underlying floral zygomorphy. Our results provide the first insights into the genome-scale molecular regulatory network that controls the evolution and development of the zygomorphic flower in Papilionoideae. Examination of the transcriptomic changes in the six floral organs, leaves and roots in common vetch.
Project description:Greenhouse experiment testing the effects of Barley yellow dwarf virus on Avena sativa and the fate of isotopically labeled MAOM added to soil
Project description:Rice gall dwarf virus (RGDV) is the causal agent of rice gall dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RGDV infection.
Project description:Rice black streak dwarf virus (RBSDV) is the causal agent of rice black streak dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RBSDV infection.
2012-12-01 | GSE34263 | GEO
Project description:Effect of Chinese milk vetch on soil microbe
| PRJNA699740 | ENA
Project description:Endophytic bacteria in root nodules of milk vetch
Project description:Yaks are a rare and unique animal species inhabiting the Qinghai-Tibet Plateau, known for their remarkable resilience. Milk-derived exosomes, tiny vesicles containing various biological molecules, play crucial roles in numerous pathological and physiological processes, including cell growth, development, and immune regulation. This study conducted small RNA sequencing to characterize the miRNA expression profiles of yak milk-derived exosomes from high and low altitudes, aiming to identify differentially expressed miRNAs. Our findings revealed that these differentially expressed miRNAs are involved in mammary gland inflammation, virus infection regulation, and heat stress response. Through GO and KEGG enrichment analyses, we discovered that the target genes of these differentially expressed miRNAs are enriched in signaling pathways related to Th17 cell differentiation and the Ras-MAPK signaling pathway. In conclusion, this research sheds light on the differential expression of miRNAs in yak milk-derived exosomes under varying environmental conditions. This new knowledge provides a theoretical foundation for further exploring yak resilience and the potential role of milk-derived exosomes in disease and immune modulation.
Project description:Rice dwarf virus (RDV) is the causal agent of rice dwarf disease which causes severe loss of rice yield in northern Asia countries. The disease symptoms are stunting of plant growth, chlorosis specks on leaves, and delayed and incomplete panicle exertion. Symptom severity was different among three strains (RDV-O, –D84, and -S), and was in the rank order RDV-O < -D84, < -S. In this study, we have analyzed the relationship between symptom severity and host gene responses by the gene expression analysis through the 60-mer oligo microarray. Keywords: virus infection, disease response