Differential Expression of microRNAs in Maize Inbred and Hybrid Lines during Salt and Drought Stress

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DOI: 10.4236/ajps.2010.12009   PDF   HTML     8,224 Downloads   19,593 Views   Citations

Abstract

Here, we analyzed whether the microRNA (miRNA) expression levels differ between maize inbred lines B73 and Mo17 and their reciprocal hybrids under salt and drought stress. We found that miR156, miR164, miR166, miR168, miR171 and miR319 are differentially expressed under abiotic stress. Interestingly, Mo17 × B73 showed the strongest change in miRNA expression in response to salt or drought stress, and was also the most resilient line when under abiotic stress in terms of water loss. In summary, our findings open the possibility that differential miRNA expression levels might be involved in heightened stress tolerance in maize hybrids.

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Y. Kong, A. Elling, B. Chen and X. Deng, "Differential Expression of microRNAs in Maize Inbred and Hybrid Lines during Salt and Drought Stress," American Journal of Plant Sciences, Vol. 1 No. 2, 2010, pp. 69-76. doi: 10.4236/ajps.2010.12009.

Conflicts of Interest

The authors declare no conflicts of interest.

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