:Genetics

Although identical the genetic composition of the neurons associates I smell with it in the fruit fly, the scientists are a stage more close to understanding as definitive neurons perceive specific cheiros, in accordance with a set free article May in 27, 2008 in the genetics of PLoS of the periodical of the open access.

The embryonic development starts with an only stack, contends the genetic information to create all the parts of the organism that if is becoming. While this stack if divides, it supplies this full compliment of the genes to each stack of subsequent son, who has in turn the potential if to transform some of the found stacks into the organism in a known property as totipotency. Much still has to be learned on as and in because these stacks if differentiate, a great scale and a small scale, and to understand these regulating processes is the genetic foundation of developing biology.

In the fruit fly, of gnero drosophila, two agencies are related to the direction of smell: the main antennas that extend of palps and maxillary in the mouth. In palps, it has six different types of current neurons to transmit the information of the sensorial area to the proper brain. Based in these tests standards, receptors different will discriminate odors different. Each type has a test specific and predizvel standard of receptors olfactory, but until it was not opened here as the neurons had been instructed to become in these different but highly predizveis ways.

To investigate this question, the ray of Anandasankar and the colleagues in the University of Yale had compared the genetic sequences recently published of all the 12 species typically studied of drosophila. In making this, they had identified regions of the upstream ADN and close to the genes for receptors they themselves that are almost identical through the species. To assume that these were the control regions, that will influence when and as the genes will become, the team modified genetically definitive regions of experimental control, showing that these genes were certainly necessary for the control of this part of the development. Some regions regulate the expression of the receiver positively, in way that if are not current, the necessary proteins do not appear. Another one regulates it negative, as soon as when they are lacking receptors will appear, same in the wrong neurons.

Notvel, these regulating sequences can have other papers in the nervous system — they can equally potential actuar in the process to connect the neurons to other neurons in the antennas, called orientation the axnio. This suggests that these genes are not only necessary for the direction of smell, but can equally be integral to the nervous system of the drosophila.

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A regulating code for the neuron-specific expression of the receiver of the odor.
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Biol 6 of PLoS (5): e125.
doi: 10.1371/journal.pbio.0060125
Estale here for the full article of the length

Writing for Anna Sophia McKenney
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