Editing Genetically modified maize (section)

===Drought-resistant maize ===
In 2013 [[Monsanto]] launched the first transgenic drought tolerance trait in a line of corn hybrids called DroughtGard.<ref>{{cite web | work = OECD BioTrack Database | url = http://www2.oecd.org/biotech/Product.aspx?id=MON-8746%C3%98-4 | title = MON87460 | access-date = 15 March 2014 | archive-date = 1 July 2017 | archive-url = https://web.archive.org/web/20170701140407/http://www2.oecd.org/biotech/Product.aspx?id=MON-8746%C3%98-4 | url-status = dead }}</ref> The MON 87460 trait is provided by the insertion of the cspB gene from the soil microbe ''[[Bacillus subtilis]]''; it was approved by the USDA in 2011<ref>{{cite journal | url = http://www.aphis.usda.gov/brs/fedregister/BRS_20111227c.pdf | author = Department of Agriculture, Animal and Plant Health Inspection Service | id = APHIS–2011–0023 | title = Monsanto Co.; Determination of Nonregulated Status of Corn Genetically Engineered for Drought Tolerance | journal = Federal Register | volume = 76 | issue = 248 | date = 27 December 2011 }}</ref> and by China in 2013.<ref name="pmid24067764">{{cite journal | vauthors = Eisenstein M | title = Plant breeding: Discovery in a dry spell | journal = Nature | volume = 501 | issue = 7468 | pages = S7–9 | date = September 2013 | pmid = 24067764 | doi = 10.1038/501S7a | bibcode = 2013Natur.501S...7E | doi-access = free }}</ref>

==== Health Safety ====
In regular corn crops, insects promote [[Fungus|fungal]] colonization by creating "wounds," or holes, in corn kernels. These wounds are favored by fungal [[spore]]s for [[germination]], which subsequently leads to [[mycotoxin]] accumulation in the crop that can be carcinogenic and toxic to humans and other animals. This can prove to be especially devastating in developing countries with drastic climate patterns such as high temperatures, which favor the development of toxic fungi. In addition, higher mycotoxin levels leads to market rejection or reduced market prices for the grain. GM corn crops encounter fewer insect attacks, and thus, have lower concentrations of mycotoxins. Fewer insect attacks also keep corn ears from being damaged, which increases overall yields.<ref>{{cite journal | vauthors = Pellegrino E, Bedini S, Nuti M, Ercoli L | title = Impact of genetically engineered maize on agronomic, environmental and toxicological traits: a meta-analysis of 21 years of field data | journal = Scientific Reports | volume = 8 | issue = 1 | pages = 3113 | date = February 2018 | pmid = 29449686 | pmc = 5814441 | doi = 10.1038/s41598-018-21284-2 | bibcode = 2018NatSR...8.3113P }}</ref>