AGRI 224 Lecture Notes - Lecture 7: Citrus Greening Disease, Selective Breeding, Reassortment

• School: University of Delaware
• Department: Agriculture
• Course: AGRI 224
• Professor: Aresenault

Document Summary

Generally, a gmo is due to the introduction of a novel genetic element into the genome of an organism. Found a spinach gene confers resistance to citrus greening - this is gmo. In the us we don"t consider gene deletion a gmo. Advanced selective breeding - looking at genetic codes to determine desirable traits, then cross breeding normally. Splice in a gene of interest to the plant/animal. Every papaya grown on hawaii is gmo - but they are against every other gmo. In cross breeding, the cross bred genes will randomly reassort to make progeny. In genetic engineering, the gene goes to a specific spot. Take seeds/plants, expose them to radiation, which breaks up the dna and causes mutations. You then breed that plant and it has new traits. Chemical mutagen is any chemical that can give you cancer or cause a mutation. Use proteins called zn fingers instead of nucleotides. Dna, and you can either delete or insert.