Cultivated sweet potatoes contain Agrobacterium inserted T - DNA that is absent in wild sweet potato relatives . A natural GMO ?
نویسندگان
چکیده
Genetic modification (GM) of food crops is a very hot topic in today’s society. When researchers discovered that certain bacteria had the ability to transfer their own DNA into plant genomes, the applications seemed endless. By taking advantage of this transfer DNA (T-DNA) mechanism, scientists can selectively transfer specific genes into the target plant to provide agronomic or health benefits. For example, Bt corn contains bacterial genes that prevent significant yield loss due to insect damage, and golden rice contains genes from corn and bacteria that together generate vitamin A precursors not typically found in rice, providing a nutritional benefit in the staple food crop.
منابع مشابه
The genome of cultivated sweet potato contains Agrobacterium T-DNAs with expressed genes: An example of a naturally transgenic food crop.
Agrobacterium rhizogenes and Agrobacterium tumefaciens are plant pathogenic bacteria capable of transferring DNA fragments [transfer DNA (T-DNA)] bearing functional genes into the host plant genome. This naturally occurring mechanism has been adapted by plant biotechnologists to develop genetically modified crops that today are grown on more than 10% of the world's arable land, although their u...
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