Shark Virgin Birth Produces Multiple, Viable Offspring
Journal of Heredity
AFLPs, Microsatellites, Parthenogenesis, White-spotted bamboo shark
Facultative automictic parthenogenesis has only recently been confirmed in the most ancient jawed vertebrates, the chondrichthyan fishes (sharks, batoids, and chimeras). To date, however, in both documented cases, the females have only produced a single parthenogen offspring, and none of these have lived for more than 3 days. We present a genetically verified case of automictic parthenogenesis by a white-spotted bamboo shark (Chiloscyllium plagiosum), in which at least 2 parthenogens were produced and survived for 5 years or more. These findings demonstrate that some female sharks are capable of producing, multiple, viable offspring through parthenogenesis.
Feldheim, Kevin A.; Demian D. Chapman; Doug Sweet; Sean Fitzpatrick; Paulo A. Prodohl; Mahmood S. Shivji; and Bob Snowden. 2010. "Shark Virgin Birth Produces Multiple, Viable Offspring." Journal of Heredity 101, (3): 374-377. doi:10.1093/jhered/esp129.