Capt_Maloche wrote:you mean that GMOs are already on the circuit?
Absolutely not. The term GMO, in principle, is specifically used for organisms whose DNA has been modified by genetic engineering (generally by the addition of gene (s) from another organism).
In the wild, for a given species, the population presents individuals which all resemble each other with small variations. The pressure of natural selection keeps these variations small (otherwise the individual does not reproduce badly or in the case of a disabling mutation or, conversely, reproduces very well and diffuses his mutation in the population if it constitutes an advantage).
Human selection of organisms has consisted over the ages in ensuring that the interesting individuals, carriers of NATURAL and RANDOM mutations, reproduce, even if they lose their hardiness. Man by his action has in some way substituted artificial selection for natural selection.
To preserve the interesting characters, we have thus created the "varieties" (plants) and the "races" (animals). We can assimilate these varieties to subspecies, still fertile among themselves but different morphologically.
F1 hybrids are a cross between two "stable" varieties.
To illustrate the point:
The dog came from the wolf by human selection, initially we kept the most docile individuals, best hunters, good guardians, etc ... and then the interesting characters have evolved over time: aesthetics, size etc ... .
We have come to the current diversity of dog breeds.
And if we cross a husky with a husky, we are sure to have baby huskies (stabilized breed).
But you can also cross a husky with a chihuahua (another stabilized breed) and thus obtain F1 hybrids which will all look alike and will be morphologically "in between".
But if we dare to breed these puppies among themselves then there is the binz! about a quarter of the puppies will look like a husky, another quarter like a chihuahua, and the rest will look "like nothing" (like a cocker spaniel chihuahua with blue eyes, why not).
Here ! And it works the same (with subtleties anyway) for all domesticated organisms. Except GMOs, where the mutation is "directed" (which saves time).
The problem with GMOs, amha, is that we understand neither all the mechanisms of inheritance and the intimate functioning of DNA, nor the very complex interactions between species in an ecosystem.
So a priori, introducing a gene directly into DNA, without knowing the ins and outs, is playing with fire.
And everyone knows that by dint of playing, you end up getting burned.
) are hostage-taking, but do you know what happens if you "have fun" resowing your harvest?
