The new genetic maps even suggest spiders may use silk in more ways than we yet fully know: some spidroins are made
in the venom glands rather than the silk glands.
Instead, Werren likened the functionality of these single - copy genes to «moonlighting» for extra cash, with the genes taking on a «night job»
in the venom gland in addition to their «day job» elsewhere in the body.
Seeking to understand how the cone snail springs its slow - motion trap, the Utah researchers searched the gene sequences of all of the proteins expressed
in the venom gland of Conus geographus.
The insulin genes were more highly expressed
in the venom gland than genes for some of the established venom toxins.
Not exact matches
Moreover, they found
glands in the center of the remipede body that manufacture
venom and are connected to the reservoirs.
One of the orb weaver's silk genes is even expressed
in the spider's
venom gland.
As
venom glands don't fossilise, Benoit and his colleagues from at Wits University,
in association with the Natural History Museum of London used cutting edge CT scanning and 3D imagery techniques to analyse the only two fossilised skulls of the Euchambersia ever found, and discovered stunning anatomical adaptions that are compatible with
venom production.
The search focused on the submaxillary salivary
gland of rodents, which is similar
in certain respects to the
venom gland of snakes.
One genus of gastropods, Conus, contains
venom in its salivary
gland that is toxic to humans, but only those of the Pacific pose any severe threat to man.
But now scientists at the University of Melbourne have found that dragons actually use
venom from a
gland in their mouth to down their prey.