Abstract：
:Decreasing freshwater supply has led to the consideration of treated wastewater as an alternative source for agricultural irrigation. However, the higher content of heavy metals restricts their use in agricultural purposes. In the current study, a set of 181 SSR markers were used to perform association mapping in a structured sorghum population consisting of 107 accessions evaluated under tap-water and heavy-metals-containing water irrigation conditions. Significant differences between optimal and stressed growing conditions were shown in all evaluated phenotypic traits. Association mapping revealed 14 significant associations between 12 SSR markers and heavy metals stress indices of phenotypic traits (R2 = 11.54-30.85%). BLASTP annotation of QTLs genomic sequences identified 102 gene homologs, of which 19 are known to be implicated in phytoremediation and heavy metals tolerance. All nineteen genes exhibit differential expression patterns in heavy metals tolerant and susceptible sorghum accessions, and their transcriptional levels were highly elevated under heavy metals stress, indicating a possible functional association among these genes and provides strong evidence for their role in phytoremediation and heavy metal stress tolerance. Clustering and expression patterns of pentatricopeptide repeat and zinc finger protein genes suggest crucial roles of those genes in phytoremediation and heavy metals tolerance.
journal_name
Ecotoxicol Environ Safjournal_title
Ecotoxicology and environmental safetyauthors
Abou-Elwafa SF,Amin AEAZ,Shehzad Tdoi
10.1016/j.ecoenv.2019.02.022subject
Has Abstractpub_date
2019-05-30 00:00:00pages
366-372eissn
0147-6513issn
1090-2414pii
S0147-6513(19)30171-Xjournal_volume
173pub_type
杂志文章abstract：:Twenty-three chlorinated monophenols were investigated for their uncoupling and inhibitory properties on plant mitochondria. All the studied compounds had uncoupling properties but their activity was submitted to quantitative changes from 1- to 400-fold, according to the substitution. They also had inhibitory properti...
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journal_title：Ecotoxicology and environmental safety
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journal_title：Ecotoxicology and environmental safety
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journal_title：Ecotoxicology and environmental safety
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