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Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice

1
CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
2
College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
3
Strategic Innovation Platform, International Rice Research Institute, DAPO Box 7777, Metro Manila 1226, Philippines
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(14), 3417; https://doi.org/10.3390/ijms20143417
Received: 28 June 2019 / Revised: 10 July 2019 / Accepted: 11 July 2019 / Published: 11 July 2019
(This article belongs to the Special Issue Heavy Metals Accumulation, Toxicity and Detoxification in Plants)
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Abstract

Cadmium (Cd), as a heavy metal, presents substantial biological toxicity and has harmful effects on human health. To lower the ingress levels of human Cd, it is necessary for Cd content in food crops to be reduced, which is of considerable significance for ensuring food safety. This review will summarize the genetic traits of Cd accumulation in rice and examine the mechanism of Cd uptake and translocation in rice. The status of genes related to Cd stress and Cd accumulation in rice in recent years will be summarized, and the genes related to Cd accumulation in rice will be classified according to their functions. In addition, an overview of quantitative trait loci (QTLs) mapping populations in rice will be introduced, aiming to provide a theoretical reference for the breeding of rice varieties with low Cd accumulation. Finally, existing problems and prospects will be put forward. View Full-Text
Keywords: cadmium accumulation; absorption and transport; QTL location; mapping population; rice (Oryza sativa L.) cadmium accumulation; absorption and transport; QTL location; mapping population; rice (Oryza sativa L.)
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Chen, J.; Zou, W.; Meng, L.; Fan, X.; Xu, G.; Ye, G. Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice. Int. J. Mol. Sci. 2019, 20, 3417.

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