Correlating SNP Genotype with the Phenotypic Response to Exposure to Cadmium in Populus spp.

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• 作者：Marta Marmiroli ; Giovanna Visioli ; Elena Maestri ; Nelson Marmiroli
• 刊名：Environmental Science & Technology
• 出版年：2011
• 出版时间：May 15, 2011
• 年：2011
• 卷：45
• 期：10
• 页码：4497-4505
• 全文大小：963K
• 年卷期：v.45,no.10(May 15, 2011)
• ISSN：1520-5851

文摘

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.