Bioengineering for robust tolerance against cold and drought stresses via co-overexpressing three Cu-miRNAs in major food crops.

Environmental stresses threaten global food security by reducing major crop productivity. MicroRNAs (miRNAs), a class of small non-coding RNAs, function as master regulators of gene expression in plants. In this study, we co-overexpressed three copper-miRNAs (miR397, miR408, and miR528) in three major food crops (referred to as 3miR-OE), which simultaneously silenced several target laccase genes, resulting in reduced lignin contents but increased flavonoid metabolites.

Erratum: pri-miR-34b/c rs4938723 polymorphism is associated with hepatocellular carcinoma risk: a case-control study in a Chinese population.

[This corrects the article on p. 1 in vol. 8, PMID: 28337312.

A novel robot visual homing method based on SIFT features.

Warping is an effective visual homing method for robot local navigation. However, the performance of the warping method can be greatly influenced by the changes of the environment in a real scene, thus resulting in lower accuracy. In order to solve the above problem and to get higher homing precision, a novel robot visual homing algorithm is proposed by combining SIFT (scale-invariant feature transform) features with the warping method.