Bedbug sequenced genome to explain insecticide resistance – El Universal

Scientists in the US have established the entire sequence of the “bed bug” genome, the insect known as the bedbug , as revealed two studies published Tuesday by the British magazine Nature .

This nocturnal species suck human blood drilling bites skin irritants that cause discomfort or insomnia but does not transmit any disease, and was considered virtually eradicated even a decade ago in most developed countries from the World War II .

Overall, the research, led by experts from the American Museum of Natural History and the University of Rochester in New York -both – explain the genetic basis by which this parasite has adapted to continue feeding on blood and developed a insecticide resistance

The new global bed bug infestations. have been related to the increase in the number of homes heated with heating and the movement of people favored by the international air transport.

This problem, remind researchers, it has been exacerbated over the past 20 years by the evolution of resistance “bed bug” to insecticides.

The first study, produced by the American Museum of Natural History by the Weill Cornell Medical Center, managed to attach the genome sequence and the bug and identify

all genes expressed during the five stages of growth, as well as those of his adulthood in both males and females.

The scientists showed that the genes of these parasites express the highest degree of change and mutations when first feed on human blood.

It also compared the DNA and ribonucleic acid (RNA) of bedbugs collected in 1973 for the first time in a thousand 400 places City of New York, including all metro stations and found that insects tend to be more closely related from a genetic point of view to others in the same area.

This type of information it may be useful to trace the migration routes of bedbug infestations in established urban areas and colonized for the first time.

In the second study, researchers at the University of Rochester, along with colleagues 36 other institutions, also came to decipher and attach the map of bed bug genome, allowing them to predict which sequences encode certain proteins and what is its function.

So could identify 187 genes ability to encode blood digestive enzymes and a wide variety of salivary proteins that allow bugs feed on blood from the same host without causing pain.

Other identified genes, experts, developed resistance to insecticides through of proteins made in the cuticle of these parasites that slow penetration venom enzymes and neutralize its toxicity.

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