By unlocking rare, evolutionarily conserved rust resistance locus from the Sudanese sorghum core collection, this work bridges global germplasm diversity with modern breeding, revealing Rp2 locus is a tractable genomic entry point for stacking durable, multi-disease resistance and strengthening the genetic resilience of U.S. sorghum improvement.
Genetic Architecture and Co-Localized QTL Underlying Plant Height and Brix Content in Sorghum
Genetic modeling and high-density QTL mapping reveal that sorghum plant height and brix content are governed by interacting major genes and polygenes, share co-localized loci that explain their phenotypic correlation, and are influenced by auxin- and carbon-fixation–related candidate genes that offer targets for breeding improved varieties.
Integrated Physiological and Molecular Mechanisms Underlying Sorghum Responses to Alkali Stress
Liu et al. found that though alkali stress disrupts growth, osmotic balance, and cellular stability in sorghum, the tolerant genotype Z14 counters these effects through stronger antioxidant defenses, enhanced osmotic regulation and rapid activation of stress-responsive genes and signaling pathways.
WRKY76–miR528–SOD2 Regulatory Module Governs Submergence Tolerance in Sorghum
Sorghum submergence tolerance is governed by a WRKY76–miR528–SOD2 regulatory module that controls oxidative stress responses, revealing key molecular targets for improving crop resilience to flooding.
Evolutionary, Structural, and Functional Diversification of Polyamine Oxidase Genes Underlying Drought Tolerance in Sorghum
Sorghum polyamine oxidase genes exhibit distinct structural, evolutionary, and regulatory specializations that shape tissue- and genotype-specific stress responses, with SbPAO5 and SbPAO6 emerging as key contributors to drought tolerance and promising targets for crop improvement.
Dissecting the Genetic Basis of Root Traits in Sorghum Using Genome-Wide Association Studies
A genome-wide association study in sorghum identified 189 QTNs underlying root system architecture, highlighting a complex polygenic basis with candidate genes linked to hormone signaling, flavonoid biosynthesis, and stress adaptation.
Plant Biology 2022 (ASPB 2022) June 9-13, Abstracts due June 2
The American Society of Plant Biologists and the Canadian Society of Plant Biologists are hosting their 2022 Conference, PB 2022, in Portland, Oregon from July 9-13.
Mission Statement
Our aim is to provide a central hub that delivers timely information of interest to the sorghum community and encourages communication and data sharing among members.