DNA Technologies in Agriculture

Jessica Ostlund

1) I searched "DNA Technologies + Agriculture"

http://www.cliffsnotes.com/sciences/biology/biology/recombinant-dna-and-biotechnology/dna-and-agriculture


- This type of technology uses recombinant DNA (DNA molecules formed by lab methods to bring together genetic material from multiple sources.) and biotechnology to increase the growth of crops and the crops resistance to disease.


- Scientists have obtained genes from bacteria that have different tasks to help reengineer the plants.

2) Genetically Modified Crops

http://isaaa.org/resources/publications/pocketk/1/default.asp

http://learn.genetics.utah.edu/content/science/gmfoods/


- GM Crops are an offspring of two other plants. They are made to create a desired trait.


- There are two methods used when transferring DNA from plant to plant. The first uses a 'gene gun', which coats the DNA to be introduced into the cells onto microscopic particles. The second method uses bacterium to introduce the DNA into the desired plant.


-This technology is very new, but very promising.

3) Flavr Savr

http://en.wikipedia.org/wiki/Genetically_modified_tomato


-In the late 1980s genetic engineering techniques were developed so that genetic material could be successfully transferred into the nuclear genome of tomatoes.


-There was a specific type of soil dwelling bacteria used in this technology called, agrobacterium tumefaciens, which infuses the plant with its own DNA. And by doing that it causes the DNA to attach to the plant's cells and ensures the proliferation of the bacteria population. (The second type of engineering mentioned in 2)


-The main focus of this experiment was to extend ripening of the plant even when off the vine.

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4) GM Crops Today

http://www.nature.com/news/fields-of-gold-1.12897


- Controversy has shown more today than before with the genetically modified crops. People are calling them 'unnatural', and they want to know more about them.


- The GM Crops are getting to be more known around the world, and are even helping farmers.


-Scientists are still working on the DNA transfer and trying to find more efficient ways to transport DNA from plant to plant.