Sorghum Gene Locus Confers Resistance to Colletotrichum sublineola and Other Fungi

Whole-genome resequencing of recombinant inbred lines (RILs) that were products of crosses between Colletotrichum sublineola (Cs)-resistant lines and Cs susceptible lines identified a locus that confers Cs resistance as well as resistance to other fungi.

Whole-genome resequencing of S. bicolor x S. halepense Cross Results in Increased Coverage of the Whole Chromosome and Presents New Targets for Future Research

Researchers used whole genome resequencing to “harness” the diversity and perenniality inherent in the wild Sorghum halepense line. The better variant distribution pattern in the present study opens up the opportunity for boosting gene and major marker discovery, particularly in the pericentromeric regions, on which there is little information.

New Tool for Gene Co-Expression and Visualization in Sorghum and Barley

Researchers from Ohio University developed PlantNexus, a gene co-expression network (GCN) and visualization interface for sorghum and barley. The gene functions and regulatory mechanisms that GCNs could help study are of fundamental importance in increasing nutrients and yield.

Mechanisms Behind the Differential Response of Two Inbred Sorghum Lines to Soil Salinity

RIO and SN005, two inbred sorghum lines that are representatative of salt-tolerant and intolerant breeds respectively, showed significant differences in transcription factor (TFs) expression and secondary metabolic pathways and hormone signaling pathways in the first two hours after the salt treatment.

Analysis of MAPK cascade Genes Indicates Possible Gene Pathways for Water Stress Regulation

Researchers conducted the first genome-wide analysis of MARKK and MAPKK genes in sorghum. The researchers hypothesize that SbMPK14, SbMAPKKK39, and SbMAPKKK47 are critical genes in water stress tolerance in sorghum.

Investigation into Sorghum Domestication Based on End Uses

Researchers genetically assessed 445 diverse sorghum lines and confirmed significant phenotypic differences based on end uses and evidence of frequent exchanges of genetic information between wild and cultivated lines and among subpopulations. SbTB1, associated with lateral branching, and its association with Sb1, the gene for seed shattering, were investigated to further the understanding of sorghum’s domestication.

Integrative investigation shows promise for narrowing candidate genes in forage sorghum yield and other complex traits

RNA-Seq and GWAS were used to analyze sorghum forage yield traits across four environments and two locations. This integrative approach to analyzing omics data shows potential in the identification of candidate genes for complex traits.

Sorghum GC1 Encodes an Atypical Gγ-like Subunit that Controls Glume Coverage

Naturally truncated variations of GC1 (Glume Coverage 1) were found to result in low glume coverage relative to wild sorghum varieties, presenting a possible target for gene editing.

Phosphorus Efficiency in Sorghum Hybrids Shows Potential for Increasing Production in Nutrient-Difficient Soils

Hydroponically grown sorghum hybrids in low and high phosphorus environments were assessed for the efficiency of their phosphorus absorption in an effort to determine which lines could best be grown under low-phosphorus conditions.