Wednesday, February 25, 2015

“Small bug, but smelly”: bed bugs people adopted from bats – Moskovsky Komsomolets

Analysis of bed bugs from different parts of Europe has shown that they have got a man from bats

Today, at 16:56, Views: 8084

«There are two types of people – those who live bugs, and those with whom they will. Nowadays, bedbugs are becoming more common “- a dismal prognosis gives Warren Booth of the University of Tulsa in the United States. The researchers decided to install something from the man in the bed were blood-sucking bugs.

Photo: Dmitri Alexeev

The famous Russian gamer Misha Zavalishin communicates with the bat in the cave Butkova under stanitsey Novosvobodnaya in Adygea. He knows that they live bugs … Photo: dmitralex.ru.

The Bug – quite ancient insect, which is mentioned as far back as ancient Egyptian sources. For thousands of years it existed next to the man and at his expense, and nothing could be done by virtue of living human community.

The invasion of bed bugs, which is observed the last 15 years, it was revenge for trying to exterminate humanity insects with the help of massive use of hard insecticides, which took place in the fifties of the last century. They temporarily retreated, and now back to collect the new harvest, writes jtimes.ru.

Today’s bug is not so easy to deduce the previously applied insecticides contributed to gene mutations and resistance to modern poison. There is a small consolation: there is no evidence that would be talked about bedbugs as carriers of infection similar to a mosquito or tick encephalitis.

According to Warren Booth of the University of Tulsa in Oklahoma, US, literally every week in the press there were articles about the next invasion of bedbugs. However, despite this, they are rather poorly understood.

Booth and his colleagues analyzed the genes of bedbugs to understand where they came from. Scientists have found that in Europe, these insects are divided into two main branches, so different among themselves, that they almost form two different kinds. Well, they took from the bats, reports BBC BBC.

In a study published in the journal Molecular Ecology, first presented genetic evidence that the bugs in the old days parasitized at-bats, and then moved to the bed with a man. A team led by Booth studied hundreds of bugs collected from households man and bats in 13 European countries.

An analysis of their DNA showed that the bugs, parasitic on bats did not exchange genes with their counterparts from human beds – despite the fact that some of these mice lived in attics or in the churches, that is able to come into contact with people.

A branch bugs living on bats appeared at that time and mice, and humans lived together in caves, says Booth. And even today, this branch is much more genetically diverse than bugs, parasitic on humans.

The two branches so strongly differ among themselves that when they crossed in the laboratory offspring was less prolific.

As far as we know, to treat the bites do not carry diseases, but the bites itch and unpleasant to look like a rash.

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