Are transgenic plants resistant to herbicide?
The term ‘herbicide-resistant crop’ (HRC) describes crops made resistant to herbicides by either transgene technology or by selection in cell or tissue culture for mutations that confer herbicide resistance. HRCs are also referred to as herbicide-tolerant crops.
What crops are resistant to herbicides?
Among the traits, herbicide resistance trait remained the most planted trait. In 2010, herbicide resistance crops: soybean, maize, canola, cotton, sugarbeet, and alfalfa accounted for 61% (or 89.3 million ha) of the global transgenic area (148 million ha).
What GMO crop is resistant to a specific herbicide?
A genetically modified organism (GMO) is any organism whose DNA has been altered using genetic engineering techniques. Plants such as soybeans, cotton, and maize have been genetically engineered to be resistant to the common broad-spectrum herbicide glyphosate.
Is soybean are from herbicide tolerance?
Herbicide tolerance, in particular to glyphosate, is still a dominant trait in GE plants, including glyphosate-tolerant “Roundup Ready” soybeans.
Which of the following is a herbicide-resistant gene?
Pectate lyase gene is well known for its role in herbicide resistance by controlling plant polysachharide composition which affects stress resistance (Liang et al., 2017).
What are the three different strategies to develop herbicide tolerant transgenic plants?
Genetic engineering work to develop glyphosate resistant crops focused on three strategies: overproduction of EPSP synthase, introduction of a metabolic detoxification gene and introduction of an altered EPSP synthase enzyme with decreased affinity for glyphosate (Dill, 2005).
How many crops are herbicide-resistant?
However, sugarbeet, wheat, and as many as 14 other crops have transgenic herbicide-resistant cultivars that may be commercially available in the near future.
What percent of GMOs are herbicide-resistant?
It has been estimated that an overwhelming 81 % majority of GM crops in cultivation are herbicide-tolerant varieties [16].
What is herbicide-resistant soybean?
Sulfonylurea-resistant soybean is also resistant to glyphosate. This trait allows the safe use and reduces the risk of soybean injury due to physical drift and carryover of sulfonylurea herbicides such as thifensulfuron and chlorimuron applied in crops such as wheat or rice.
How do you manage herbicide resistance?
Prevention and management strategies
- Only use herbicides when necessary.
- Rotate herbicides (sites of action)
- Apply herbicides that include multiple sites of action.
- Rotate crops, particularly those with different life cycles.
- Avoid more than two consecutive herbicide applications with herbicide-resistant crops.
How are herbicide tolerant crops made?
There are several ways by which crops can be modified to be glyphosate-tolerant. One strategy is to incorporate a soil bacterium gene that produces a glyphosate tolerant form of EPSPS. Another way is to incorporate a different soil bacterium gene that produces a glyphosate degrading enzyme.
How do you make herbicide-resistant crops?
Do transgenic soybeans hinder weed management with herbicides?
Introgression of herbicide resistant traits from transgenic soybean into wild soybean may hinder weed management with herbicides. However, Goto et al. suggested that gene flow from imported transgenic soybean to wild soybean populations is unlikely.
Can transgenic soybean and corn be used to control common waterhemp resistant populations?
ALS-resistant populations of common waterhemp are found frequently and the populations are rapidly increasing ( Owen, 1997 ). The use of transgenic soybean and corn may represent an excellent strategy to manage the resistant weed populations.
Are transgenic soybeans resistant to glyphosate and glufosinate?
The transgenic line has the bar gene for glufosinate resistance as a selection marker. Therefore, this transgenic soybean is resistant to both glyphosate and glufosinate. Seeds of this transgenic soybean and Bert were provided by one of the authors (YS Chung).
What is the highest gene flow rate for soybean transgenic soybeans?
The highest gene flow rate found in the present study was 0. 14% at a 2 m distance from the transgenic soybean plot. When the gene flow rate of the non-transgenic control (Bert) was plotted against distance, the highest rate was estimated as 0. 21%. This result is comparable to the result of Yoshimura et al.