5 results match your criteria: "Department of Plant Sciences University of Tennessee Knoxville TN USA.[Affiliation]"
Gibberellins (GAs) are a major class of plant hormones that regulates diverse developmental programs. Both acquiring abilities to synthesize GAs and evolving divergent GA receptors have been demonstrated to play critical roles in the evolution of land plants. In contrast, little is understood regarding the role of GA-inactivating mechanisms in plant evolution.
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- Forest fragmentation can harm plants by lowering genetic diversity and disrupting reproductive processes, but some tree species may cope with these issues through their reproductive mechanisms.
- A study focused on L. (eastern redbud) in Georgia-Tennessee found high genetic diversity (0.63) and moderate differentiation (0.14) among populations, suggesting that they can maintain genetic variation even in fragmented habitats.
- The research highlights the need for ongoing monitoring of habitat fragmentation effects on gene flow and offers valuable insights for habitat management and breeding programs.
In plants, the phenylpropanoid pathway is responsible for the synthesis of a diverse array of secondary metabolites that include lignin monomers, flavonoids, and coumarins, many of which are essential for plant structure, biomass recalcitrance, stress defense, and nutritional quality. Our previous studies have demonstrated that PtrEPSP-TF, an isoform of 5-enolpyruvylshikimate 3-phosphate (EPSP) synthase, has transcriptional activity and regulates phenylpropanoid biosynthesis in . In this study, we report the identification of single nucleotide polymorphism (SNP) of that defines its functionality.
View Article and Find Full Text PDFThe control of flowering in perennial grasses is an important trait, especially among biofuel feedstocks. Lignocellulosic biomass may be increased commensurate with decreased or delayed flowering as the plant allocates energy for stems and leaves harvested for bioenergy at the end of the growing season. For transgenic feedstocks, such as switchgrass ( L.
View Article and Find Full Text PDFRecent increases in glyphosate use in perennial crops of California, USA, are hypothesized to have led to an increase in selection and evolution of resistance to the herbicide in populations. To gain insight into the evolutionary origins and spread of resistance and to inform glyphosate resistance management strategies, we investigated the geographical distribution of glyphosate resistance in across and surrounding the Central Valley, its spatial relationship to groundwater protection areas (GWPA), and the genetic diversity and population structure and history using microsatellite markers. Frequencies of resistant individuals in 42 sampled populations were positively correlated with the size of GWPA within counties.
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