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The researchers used a method called molecular genetic transfer analysis
The researchers used a method called molecular genetic transfer analysis to examine their genome. Using a technique developed at the University of Leicester in the UK, the team used a sequence of nine genes to identify the two layers of cells.
The authors think this is how their worm got to this location, but the next step is to look for other genes that could be involved in the process. They have identified several such genes as a sex steroid gene, which acts as a steroid to break down certain proteins found in the body, and a protein called a gene for the human olfactory bulb.
"We can't just look at the gut and see something, but we can see something that's different, even more so than what we saw in the gut," says the team. They can also look at the body's natural immune system to see its function. "If you want to see a worm's immune system, you have to be able to tell it's different from the body, but you don't have to look at the gut to see its function," says the team.
The worms' bodies also have several other genes that can help regulate their own health. For instance, they can regulate how much oxygen is in the air, and how quickly the worm gets up from resting. The researchers think these abilities may be key to a worm's survival, but the research doesn't prove that this is the case.
The team also has a number of other genes that help make the body strong, as well as some genes that help regulate appetite and how much food the worm eats.
The researchers suggest that they could even be able to identify genes by looking for specific receptors involved in regeneration of the blood vessels that connect the two organs. These receptors are located in the spinal cord, so it's plausible the worm would have a particular sense of that.
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