title: Correlating SNP genotype with the phenotypic response to exposure to cadmium in Populus spp.
abstract: Species within the genus Populus include potential phytoextractors of heavy metal ions from contaminated soils, and genetic markers predictive of performance would be a useful tool for selection and breeding. Here, we have identified sequence variation within seven target and three nontarget genes among a set of 11 Populus spp. clones. Sequence variants were present in both the coding and noncoding regions; the former can potentially affect the functionality of the target genes. At the same time, the effect of exposure of the clones to cadmium ions on the morphology and the distribution of various metal ions was investigated by scanning electron microscopy microanalysis. A positive correlation was established between genetic variation, cadmium accumulation, and its bioconcentration in the root.
authors.affiliation: Division of Genetics and Environmental Biotechnologies, Department of Environmental Sciences, University of Parma, Viale G.P. Usberti 11/A, 43124 Parma, Italy. marta.marmiroli@unipr.it
authors.forename: Marta
authors.initials: M
authors.lastname: Marmiroli
authors.forename: Giovanna
authors.initials: G
authors.lastname: Visioli
authors.forename: Elena
authors.initials: E
authors.lastname: Maestri
authors.forename: Nelson
authors.initials: N
authors.lastname: Marmiroli
mesh_terms: D001673:Biodegradation, Environmental; D002104:Cadmium / Q000633:toxicity*; D019976:Cloning, Organism; D015870:Gene Expression / Q000187:drug effects; D017343:Genes, Plant / Q000235:genetics; D010641:Phenotype; D020641:Polymorphism, Single Nucleotide; D032107:Populus / Q000187:drug effects* / Q000235:genetics / Q000378:metabolism; D012989:Soil Pollutants / Q000633:toxicity*
chemical_list: D012989:Soil Pollutants; D002104:Cadmium