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jumping genes

Researchers shed light on how horizontal gene transfer triggers antibiotic resistance

At ScienceDaily: "Yi's experiments were designed to test this possible pathway that explains how different pathogens actually get resistance from environmental species," You said. "And he demonstrated that not only is this possible, it's also very likely." Read More ›

“Jumping genes” threaten the world’s antibiotics

Does anyone remember when antibiotic resistance was proof of Darwinism? Antibiotic resistance was Evolution. And Evolution was not non-Darwinian stuff like horizontal gene transfer/jumping genes. Welcome to post-Darwin science. Read More ›

Protein turns jumping genes, once considered “junk DNA,” from “foes into friends”

What? It turns out it is not junk. It needs managing but it isn’t junk. "Our results reveal how a family of proteins that was long considered an oddity of nature, turns foes into friends," says Didier Trono. And almost nothing the Darwinians told us is true. Read More ›

Wouldn’t you know, jumping “junk DNA” can be lethal too

Researchers Nigel Goldenfeld and Thomas Kuhlman noticed that “half of the human genome is made up of retrotransposons [jumping genes, “junk DNA”], but bacteria hardly have them at all” and wondered what would happen if they just inserted some: “We thought a really simple thing to try was to just take one (retrotransposon) out of my genome and put it into the bacteria just to see what would happen,” Kuhlman said. “And it turned out to be really quite interesting.” Their results, published in the Proceedings of the National Academy of Sciences, give more depth to the history of how advanced life may have emerged billions of years ago—and could also help determine the possibility and nature of life on Read More ›

Researchers: Reproductive stem cells have system to fight off jumping genes

Whose triumph would create “catastrophic genomic instability”: Since Carnegie Institution’s Barbara McClintock received her Nobel Prize on her discovery of jumping genes in 1983, we have learned that almost half of our DNA is made up of jumping genes—called transposons. Given their ability of jumping around the genome in developing sperm and egg cells, their invasion triggers DNA damage and mutations. This often leads to animal sterility or even death, threatening species survival. The high abundance of jumping genes implies that organisms have survived millions, if not billions, of transposon invasions. However, little is known about where this adaptability comes from. Now, a team of Carnegie researchers has discovered that, upon jumping gene invasion, reproductive stem cells boost production of Read More ›

Researchers: Jumping genes time their activity, await opportunity

From ScienceDaily: Researchers have developed new techniques to track the mobilization of jumping genes. They found that during a particular period of egg development, a group of jumping-genes called retrotransposons hijacks special cells called nurse cells that nurture the developing eggs. These jumping genes use nurse cells to produce invasive material (copies of themselves called virus-like particles) that move into a nearby egg and then mobilize into the egg’s DNA driving evolution, and causing disease. … Carnegie co-author Zhao Zhang explained: “We were very surprised that the these jumping genes barely moved in stem cells that produce developing egg cells, possibly because the stem cells would only have two copies of the genome for these jumping genes to use. Instead, Read More ›