Project description:Four small RNA libraries from two contrasting sweet sorghum genotypes were sequenced. In this study, One hundred and ninety-five conserved miRNAs belonging to 56 families and 25 putative novel miRNAs from 28 precursors were identified, among which 38 conserved and 24 novel miRNAs were differentially expressed under Cd stress and/or between H18 and L69. Two groups of them: miR169p/q-nov_23 and miR408 were further focused through the coexpression analysis and might be involved in Cd transport, cytoskeleton activity and cell wall construction by regulating their targets. This study presents new insights into the regulatory roles of miRNAs in Cd accumulation and tolerance in sweet sorghum and will help to develop high-Cd accumulation or high Cd-resistant germplasm of sweet sorghum through molecular breeding and/or genetic engineering approaches.
Project description:Salt stress has become one of the main abiotic stress factors restricting agricultural production worldwide. Sweet sorghum is an important salt and drought tolerant feed and energy crop. Its salt tolerance mechanism has not been widely studied. With the development of transcriptome sequencing technology, it is possible to study the molecular mechanism of sweet sorghum salt tolerance. The purpose of this study was to further reveal the potential salt-tolerant molecular mechanisms of sweet sorghum through high-throughput sequencing analysis of the transcriptome. Finally, through high-throughput sequencing, we read approximately 54.4G of raw base and 53.7G of clean base in total, and used FastQC to assign a quality score (Q) to each base in the read using a similar phred algorithm, Analysis shows that the data is highly credible. We conclude that RNA-based transcriptome characterization will accelerate the study of genetics and molecular biology of sweet sorghum salt tolerance mechanisms and provide a framework for this.
Project description:Transcriptional profiling of cotton fiber cells from two cotton germplasm lines, MD 52ne and MD 90ne. Comparison of fiber cell transcription profiles is between the two germplasm lines and over a developmental time-course from 8 to 24 days post anthesis in four day intervals. Cotton plants grown in 3-4 row plots of approximately 300-400 individual plants. Bulked fiber samples from multiple plants per each plot represented a biological replication. There were 3-4 spatially distinct plots per cotton germplasm line. Loop microarray hybridization experimental design. Biological replicates: 2 for each germplasm line at each time-point. Technical replicates: 2 for each germplasm line at each time-point (dye-swap).
Project description:Sorghum is multipurpose crop worldwide serving as food, feed, and feedstock for biofuels, whose floral transition and vegetative growth heavily depend on photoperiod. Although multiple sorghum maturity loci (Ma1-Ma6) have been associated with photoperiod sensitivity in previous QTL studies, the underlying molecular mechanisms remain poorly understood. By functional characterizing sorghum SbGhd7 (Ma6) and integrating RNA-seq analysis of Ghd7 overexpression sorghum, ChIP-seq analysis of SbGhd7 binding sites in protoplasts and molecular studies, we discovered that SbEhd1 and SbFT10 are the direct targets of SbGhd7. SbGhd7 is a transcriptional repressor and inhibits florigen-induced floral transition by repressing SbEhd1 and SbFT10 expression.
Project description:To identify novel miRNA and NAT-siRNAs that are associated with abiotic stresses in sorghum, we generated small RNA sequences from sorghum seedlings that grew under control and under dought, salt, and cold stress treatments.
Project description:Common SNPs for GBS data for global sorghum germplasm incluiding Sorghum association pannel, carotenoid panel, Haiti breeding program, NPGS collection for Sudan and Ethiopia, Niger germplasm and Nigeria germplasm
Project description:This study compared the proteomic differences of rice sorghum GJH1 and rice sorghum BTx623 during seed development in order to reveal the specific proteins of rice sorghum seed development.
Project description:Transcriptional profiling of cotton fiber cells from two cotton germplasm lines, MD 52ne and MD 90ne. Comparison of fiber cell transcription profiles is between the two germplasm lines and over a developmental time-course from 8 to 24 days post anthesis in four day intervals.