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Wasps Have Injected New Genes Into Butterflies

sciencehabit writes: If you're a caterpillar, you do not want to meet a parasitic wasp. The winged insect will inject you full of eggs, which will grow inside your body, develop into larvae, and hatch from your corpse. But a new study reveals that wasps have given caterpillars something beneficial during these attacks as well: pieces of viral DNA that become part of the caterpillar genome, protecting them against an entirely different lethal virus. In essence, the wasps have turned caterpillars into genetically modified organisms.

7 of 103 comments (clear)

  1. Seems unlikely by wonkey_monkey · · Score: 4, Funny

    If you're a caterpillar

    If you're not sure whether any of your readers might be caterpillars, you probably shouldn't be in publishing.

    --
    systemd is Roko's Basilisk.
  2. Re:Oh no no no! by Anonymous Coward · · Score: 4, Insightful

    You geeks are so short-sighted.

    Look, there ain't anything inherently bad about GMO. It's just the combination of GMO with incredibly powerful, greedy-without-bounds, out of control corporations what is possibly going to eliminate us from this planet (cockroaches will survive, mind you).

    The day Monsanto and the likes disappear I'll reconsider my position on GMO.

    Comprende?

  3. Re:This happens a lot by Roodvlees · · Score: 4, Insightful

    Although I would not say 'true'. Science just provides understanding, we can't 'know' anything for sure. I don't think saying 'true' or talking about 'facts' achieves the desired effect of giving scientific understanding the status it deserves. Instead people confuse it for absolute knowledge (like religions claims) and think of a case where a scientist said they were sure and had 'facts', but were later proven wrong. Then they think you're trying to fool them.

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    Thank you, Bradley Manning, Edward Snowden and so many others, for courageously defending humanity, my freedom and more!
  4. Re:This happens a lot by Psychophrenes · · Score: 5, Informative

    For the curious ones, this is called Horizontal Gene Transfer : https://en.wikipedia.org/wiki/...

  5. Re:Oh no no no! by Sique · · Score: 4, Interesting
    Several issues with this stance:

    Horizontal gene transfer has been known for a long time, moreso, the mechanics of transfering a gene via retroviral DNA- or RNA-fragments into a cell came first, and only then there was the idea, that we could transfer arbitrary genes via the same mechanism. Thus GMO is a result of discovering the mechanism of horizontal gene transfer.

    If horizontal gene transfer happens, if affects only a single individuum, the one getting hit with the retrovirus carring the new DNA and thus acting as gene shuttle. In the most cases, the DNA transfer will not affect the offspring, as the gonades aren't hit by the virus, and thus the genetic modification will die with the individuum. Sometimes, the DNA transfer affects the gonades and either the individuum will become completely infertile, or it will not have viable offspring. Thus the gene transfer dies with the next generation. Only if the DNA proves to be advantageous for the individuum and its offspring, it will spread within the population, and it will take hundreds of generations until it has affected the whole population.

    This is different from GMO, where millions of individua at the same time with the same genetic modification will be released at once, and we don't have hundreds of generations to watch the effects to the species itself and to its environment and biotopes.

    As a side note: What if two patented crops from different companies crossbreed and carry both patented genes? Which company then has the right to sue the other for patent violation?

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    .sig: Sique *sigh*
  6. Re:Oh no no no! by ChromeAeonium · · Score: 4, Insightful

    It's just the combination of GMO with incredibly powerful, greedy-without-bounds, out of control corporations what is possibly going to eliminate us from this planet

    Well, that's not an overly dramatic exaggerated misrepresentation at all.

    The day Monsanto and the likes disappear I'll reconsider my position on GMO.

    That's absurd. That's like saying cooked food is bad because you don't like McDonalds. Even if we assume that all the urban legends about Monsanto are true, and that for some strange reason they really are these Saturday morning cartoon super villains that so many people take them for, are you really going to oppose things like the Rainbow papaya (university made, by the University of Hawai'i & Cornell University), Golden Rice (NGO made, by the International Rice Research Institute), Bt eggplant (government made, by Bangladesh), ect. on the basis that someone else is doing something wrong with the same technology?

  7. Re:This happens a lot by Sique · · Score: 4, Insightful
    Actually, the model is not outdated, only some interpretations of it.

    From a 19th century point of view (when Genetics were still unknown), there was no difference between mutation and horizontal gene transfer. It was a small change in one individuum, which could be transfered to the offspring (if it didn't transfer to the offspring, it wasn't evolution at all). And this change wasn't acquired by experience and learning, as the Lamarckism postulates.

    When Genetics was discovered, and the mechanism of the DNA and replication was understood, it was clear that this was the main mechanism of transferring information from one generation to the next, and that errors in transcribing allowed for a slow gene drift and thus for the acquiring of new properties. It was never claimed that this was the sole mechanism, it was just the one that was well understood and studied.

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    .sig: Sique *sigh*