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Transcriptomic changes during maize roots development responsive to Cadmium (Cd) pollution using comparative RNAseq-based approach
- Source :
- Biochemical and Biophysical Research Communications. 464:1040-1047
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- The heavy metal cadmium (Cd), acts as a widespread environmental contaminant, which has shown to adversely affect human health, food safety and ecosystem safety in recent years. However, research on how plant respond to various kinds of heavy metal stress is scarcely reported, especially for understanding of complex molecular regulatory mechanisms and elucidating the gene networks of plant respond to Cd stress. Here, transcriptomic changes during Mo17 and B73 seedlings development responsive to Cd pollution were investigated and comparative RNAseq-based approach in both genotypes were performed. 115 differential expression genes (DEGs) with significant alteration in expression were found co-modulated in both genotypes during the maize seedling development; of those, most of DGEs were found comprised of stress and defense responses proteins, transporters, as well as transcription factors, such as thaumatin-like protein, ZmOPR2 and ZmOPR5. More interestingly, genotype-specific transcriptional factors changes induced by Cd stress were found contributed to the regulatory mechanism of Cd sensitivity in both different genotypes. Moreover, 12 co-expression modules associated with specific biological processes or pathways (M1 to M12) were identified by consensus co-expression network. These results will expand our understanding of complex molecular mechanism of response and defense to Cd exposure in maize seedling roots.
- Subjects :
- Food Safety
Genotype
Biophysics
Gene regulatory network
Biology
Genes, Plant
Plant Roots
Zea mays
Biochemistry
Transcriptome
Gene Expression Regulation, Plant
Stress, Physiological
Gene expression
Humans
Soil Pollutants
Gene–environment interaction
Molecular Biology
Gene
Transcription factor
Genetics
Sequence Analysis, RNA
business.industry
Mechanism (biology)
Gene Expression Regulation, Developmental
Cell Biology
biology.organism_classification
Biotechnology
Seedling
business
Cadmium
Subjects
Details
- ISSN :
- 0006291X
- Volume :
- 464
- Database :
- OpenAIRE
- Journal :
- Biochemical and Biophysical Research Communications
- Accession number :
- edsair.doi.dedup.....c136b1973142efd952dd0e933a09de90