Caitlin M. Baker
To get an idea of why scientists want to study Daddy’s long legs, try playing the “One of these is not like the others” game the next time you see one.
“If you watch a father move with his long legs, he will only walk on three pairs of legs.” Gilherme Giant says:He is a graduate student at the University of Wisconsin-Madison. The remaining legs, he adds, swing through the air, checking the spider’s circumference.
And when they find something interesting, they can have it.
“One unique characteristic of Daddy’s long legs is the ability to curl the ends of their legs, which is achieved by breaking them up into dozens of small, articulated pieces called tarsomers,” Vanessa L. Gonzalez, a computational genomicist at Smithsonian Museum of Natural History, said NPR.
You might think that the tress is like the part between your knuckles, Gonzalez said.
One leg can hold dozens of shrimp plants, making it incredibly versatile. To find out how the spider developed this ability, Gonzalez, Genet and their fellow researchers sequenced the genome of the papa’s long legs — and eventually, they succeeded in creating paternal deficiencies by manipulating his genes.
It’s another step in understanding arachnids’ genome and the evolution of their body planes, including their unique legs, Gonzalez said. She and Jennette are co-authors of the study, which was recently published in the journal Proceedings of the Royal Society B.
Evolution based on gene recycling
The researchers found that abi’s long legs, also known as crop men, evolved their own legs not through a secret genetic component, but by reusing parts of the same genetic recipe found in other arthropods, such as genes that affect trussima-subsegments. from the leg.
“Other arthropods have trichomes”, Researcher Prashant Sharma said,But only hunters use them in a wide range of behaviors — detecting, climbing, fighting, and courting.”
Scientists reached their conclusions by interfering with or “knockdown” the genes of the Hox spider. They are kind of homeobox Genes – which determine the physical plans of animals. To imagine how it works, Gonzalez suggests thinking of a dimmer on a light. Rather than trying to turn off the gene completely, the researchers wanted to reduce it to a very low level.
When the researchers refused to express two specific genes, my father’s long legs developed much shorter legs than normal. Instead, the legs became clasps – attachments used for feeding.
In the future, similar studies could look at the genes responsible for other interesting characteristics, such as spider fangs, Gonzalez said.
Caitlin M. Baker
Altroser plants help maintain paternal tall stems
Tsumerats are small joints on the distal ends of the legs, which allow papa’s long legs to roll and wrap their legs around objects, such as twigs or even other long legs. Dad’s legs.”
“If you have more slices on your fingers, you will be able to bend your finger more tightly,” she added. “Then if your finger has a lot more segments and it’s also a lot longer, you can hold on tight to just about anything. These trusses help the legs achieve gripping ability, like a ‘curly follicular tail’.
Legs also have another special feature, a style of survival that scientists call auto cut. Gonzalez said the spider’s legs can “slide away from the body, a trick used to distract predators while the papa’s long legs escape with the rest of the legs.”
What would you do if you met a long-legged dad?
People in the United States are probably very familiar with their dad’s long legs. When asked what they do when they encounter one, Gonzalez said they are harmless.
“battalions obilio It is one of the most widespread types of crops in the world and can be easily seen in cities. One of the biggest misconceptions, she said, is that they are venomous, but they are “too weak” to sting,” adding that spiders do not have venom and do not bite.
“If you come across one in the woods or in your house, look for it in amazement and let it go on its way,” she said. “If you feel you need to remove it from inside your home, gently hold it and place it outside.”
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