Parthenogenesis is a mode of asexual reproduction in which offspring are produced by females without the genetic contribution of a male. Among all the sexual vertebrates, the only examples of true parthenogenesis, in which all-female populations reproduce without the involvement of males, are found in squamate reptiles (snakes and lizards).[1] There are about 50 species of lizard and 1 species of snake that reproduce solely through parthenogenesis (obligate parthenogenesis).[2] It is unknown how many sexually reproducing species are also capable of parthenogenesis in the absence of males (facultative parthenogenesis), but recent research has revealed that this ability is widespread among squamates.
^Macculloch, Ross; Robert Murphy; Larissa Kupriyanova; Ilya Darevsky (January 1997). "The Caucasian rock lizard Lacerta rostombekovi: a monoclonal parthenogenic vertebrate". Biochemical Systematics and Ecology. 25 (1): 33–37. Bibcode:1997BioSE..25...33M. doi:10.1016/S0305-1978(96)00085-3.
^Vitt, Laurie J., and Janalee P. Caldwell. Herpetology: an introductory biology of amphibians and reptiles. Academic Press, 2013.
and 14 Related for: Parthenogenesis in squamates information
males (facultative parthenogenesis), but recent research has revealed that this ability is widespread among squamates. Parthenogenesis can result from either...
features that are unique to squamates. The study also found that geckos are the earliest crown group squamates, not iguanians. In 2022, the extinct genus...
turtles that have a single genital tubercle, as squamates have the paired genitalia remaining separate. Squamate hemipenes also develop from a different cell...
consume fish, whereas adult females mainly consume other squamates, in particularly snakes. In this same research, it was concluded that the prey size...
Serpentes (/sɜːrˈpɛntiːz/). Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes...
closely related to squamates than rhynchocephalians are. The oldest undisputed lizards date to the Middle Jurassic, from remains found In Europe, Asia and...
reproduce by obligate parthenogenesis (obligate, because the lizards do not involve males and cannot reproduce sexually). Like all squamate obligate parthenogenetic...
2008, the Sedgwick County Zoo in Wichita, Kansas, became the first zoo in the Americas to document parthenogenesisin Komodo dragons. The zoo has two...
Parthenogenesis is a natural form of reproduction in which growth and development of embryos occur without fertilization. Reproduction insquamate reptiles...
with rapid tongue flicking in the female. Obligate parthenogenesis as a reproductive system has evolved multiple times in the family Gekkonidae. It has...
the most common in Eunectes, E. murinus has been observed to undergo facultative parthenogenesis. In both cases, the females had lived in isolation from...
anaconda in West Midland Safari Park gave birth to three young through parthenogenesis. Green anacondas in the wild live for about 10 years. In captivity...
While rare, mostly abortive, parthenogenesis is not unknown in birds and eggs can be diploid, automictic and results in male offspring. Birds are solely...
Global Information