Beetle mania: 糖心原创 researcher investigates insect鈥檚 secret to long life
May 6, 2014
May 6, 2014
They sound like a rock band. But blue beetles are very much insects鈥攁nd they may hold the secret to the fountain of youth. Working to unlock the mystery of these mysterious bugs is 糖心原创 researcher Dean Rider.
His genetics work takes place in the basement of Diggs Laboratory amid petri dishes and microscopes.
鈥淲hat I would like to do with this beetle is sequence its genome and see what鈥檚 inside there鈥攖ry to find interesting things that tell us about its lifestyle, what might make it live that long,鈥 said Rider, Ph.D., a research assistant professor in biochemistry and molecular biology.
Blue beetles, or Asbolus verrucosus, can live up to 17 years鈥攆our to five times longer than other beetles. They make their home in Mexico and the southwestern United States and can withstand the smoking, triple-digit temperatures of Death Valley and the Mojave Desert.
The beetle secretes a waxy substance that gives it a powder blue-colored covering to deflect the rays of the sun. It鈥檚 been reported that the insect can go without food for months and without water for up to a year.
Perhaps most interesting is that the blue beetle fakes its own death when faced with a predator.
鈥淚t鈥檚 a defense mechanism,鈥 Rider said. 鈥淭hese guys pretend they鈥檙e dead. They play possum.鈥
Another mystery about the blue beetle is that it cannot be raised to an adult while in captivity.
鈥淭here is something we don鈥檛 understand in biology that prevents us from doing that,鈥 Rider said. 鈥淪cientists can raise them to be very large larvae, but then they die.鈥
Rider, who grew up in Indiana, has had a lifelong interest in insects.
鈥淚 can鈥檛 remember a time when I didn鈥檛 care about bugs,鈥 he said. 鈥淎 neighbor kid and I used to crawl under people鈥檚 cars to get at the radiator and pull off the coolest bugs of the day and add those to our collection.鈥
Rider went on to study genetics at Purdue University, got a master鈥檚 degree in entomology from Kansas State and then a Ph.D. in entomology from Purdue.
He is using his expertise in genetics to investigate the blue beetle and its lifespan, which is something that is not well understood. However, it is known that lifespan is regulated by insulin-signaling pathways.
鈥淲e know that if you start to manipulate those in fruit flies or other insects, you can expand lifespan by 50 percent,鈥 Rider said. 鈥淭he blue beetle already lives four or five times longer than other beetles. So we鈥檙e going to be looking at those insulin-signaling pathways to see what鈥檚 there. It could reveal something related to lifespan.鈥
As part of his research, Rider would like to obtain a computer chip capable of sequencing up to 10 billion base pairs of the beetle鈥檚 DNA. To try to raise the $2,500 cost of that鈥擱ider is conducting the research on his own time and dime鈥攈e has to generate interest in the work.
鈥淧eople can donate $1 or $2 and they know it鈥檚 going specifically to that project and they can watch the project evolve over time,鈥 Rider said.
Learn more
More information about Rider鈥檚 research and fundraising efforts is available on the .