Brazil was going to bring artificial cows, but errors in DNA messed up

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2019-08-31 21:40:10

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Brazil was going to bring artificial cows, but errors in DNA messed up Source:

Cow breeds Holstein with remote horns

We live in very interesting times. Scientists deduce genetically modified varieties of vegetables and fruits, even create a GMO mosquito. And recently, researchers have uncovered interesting to look at dairy cows. The fact is that if you deprive these cloven-hoofed animals for their horns by editing the genome, many farmers do not have to spend forces and means for their removal. Horn — the only weapon the cows given to them by nature. But today, predators do not pose threats to cows, but because horns they can hurt not only each other, but also humans. Therefore, breeders are much nicer to deal with a hornless cows. But not so simple. In an effort to bring herds of hornless cloven-hoofed animals, scientists have discovered that in an edited DNA of cows there are errors.

Hornless cow Brazil

All the fuss has risen due to the fact that not all dairy cows are hornless naturally. Evolution is not cuckolded by such breeds as Angus and Hereford. Others much less fortunate, including widespread all over the world breed Holstein cloven-hoofed animals. Over the attempts to get the cows, horns are not awarded for several years of work by scientists from different countries.

it looks like the Aberdeen Angus cow

A few months ago were ready to create the country's first genetically engineered herd of dairy cows. In October 2018 Brazilian lawmakers have come to the conclusion that the work of an American biotech company Recombinetics for the production of GMO cows is not required increased observation and monitoring. In the end, scientists simply tried to give dairy cattle a natural for some breeds hell no horns.

The Company Recombinetics from Minnesota (USA), began to prepare the delivery of sperm from one of two bulls of Holstein breed with the edited genome. With the help of the breeders wanted to create about 10 calves to prove that the edited genes can be inherited. Also experts gathered to monitor the health of retired individuals for several years while they lived in Brazil. If all went well, scientists have tried to make changes in a more convenient breed of dairy cows. Suddenly, however, all plans were canceled. The reason was error in the DNA.

Error in DNA

It Turned out that GMO cows in the genome was attended not only by gene strogosti. In the process of editing the genome, a piece of bacterial DNA required for delivery of the gene strogosti cells of Holstein, called a plasmid randomly inserted into its genome. In fact, plasmid is part of the bacterium. According to scientists, the fact of getting them into the genome is not necessarily problematic. Discuss whether scientists have crossed the border to edit the genome of living beings can be in .

In the process of editing the genome, it was not only gene strogosti

However, all occurred in a laboratory, not in the pasture. And bacterial particles included several genes of resistance to antibiotics that are commonly found in plasmids. This was enough for the Brazilian government abandoned its plans. By the way, notice the presence of plasmids in the DNA scientists of the Department for control over products and medicines of the USA last year. Researchers stumbled upon this problem while studying a publicly available genome sequence of Holstein with the new equipment. So, in fact, the culprit was lack of monitoring mechanism for genome editing.

Why is the world so many cows?

In fact, scientists around the world do not tire of repeating that red meat is not all that useful. Thus, the results of the latest research says that that consumption of large amounts of red meat is correlated with risk of developing breast cancer in women. In addition to the connection between consumption of large amounts of beef and pork, and the development of cancer, you should think also about the impact our food habits have on the environment.

As you may know, in order to feed the numerous cow herds on the planet to massively cut down forests, and the cow throughout its life emit a lot of methane. It turns out that the more cows we breed, the closer we are approaching climate Apocalypse.

However, there is good news. We can go to . Today is a very promising area, you can even say that in a sense will save the planet. Do you like meat? If so, can we abandon it?

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