What are transgenic species

Plants · Research · Agriculture · Food

Process for introducing DNA into plants which originates from crossable species. The inserted DNA is recombined from different sequences.

Intragenesis is a process in which - similar to cisgenesis - genes are introduced into plants using genetic engineering methods that come from plants of the same or closely related species. In this way, genes are transferred between plants that can naturally be crossed with one another. The difference to cisgenesis is that gene constructs are introduced which do not exist in this form in the original plant ("intragene") and which are artificially put together from different DNA fragments. For example, sections from different genes can be combined, or a gene is provided with a "foreign" promoter and terminator.

The intragenesis process makes it possible to develop plants with improved properties, such as better disease resistance, lower allergen content, modified starch composition, higher vitamin content or lower lignin content. Cultivated plants in which intragenesis has already been applied are, for example, apples, potatoes, petunias, rapeseed, rice and tomatoes.

Plants that were grown using the intragenesis method contain new DNA segments that would not be created by conventional crossing. They are therefore considered to be genetically modified organisms.

See also

Cisgenic plants, cisgenesis