Common Names: white poplar
Scientists obtained complete haplotype-phased genome assemblies for the parents of a hybrid poplar. They analyzed gene expression patterns and developed machine-learning models to predict allele-specific expression. These tools can aid in functional studies and understanding genetic factors influencing gene expression in poplar hybrids.
Scientists studied the regulatory network and mechanisms of secondary xylem formation using hybrid poplar. They identified genes and miRNAs involved, providing insights for industries like papermaking and biofuels.
Scientists studied the molecular mechanisms of nonstructural carbohydrate (NSC) management in Populus alba trees under drought stress. They found starch depletion and accumulation of soluble sugars, suggesting an active response to drought. The study provides valuable insights for tree improvement programs adapting to drought conditions.
Drought stress affects plant productivity. Clone 72-30 had increased glucose, fructose, and sucrose levels, as well as significant changes in proline, malondialdehyde, and HO levels. Clone 72-31 showed better drought tolerance and different genetic changes.
This study aimed to investigate the role of anthocyanins in the anthers of three Populus species found in the Iberian Peninsula. The researchers hypothesized that the anthocyanins might act as photoprotectors, shielding pollen grains from excessive sunlight. The study found that the degree of pilosity of the bracts was related to the levels and types of anthocyanins in the anthers, which may support the photoprotective role proposed for them. Anthocyanins were also found to be useful as chemotaxonomic markers, with qualitative and quantitative differences detected among the samples. Hierarchical Cluster and Principal Components Analyses revealed intraspecific differences among samples, pointing to different clones or varieties of the same species.