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Hybridization between whiptail lizards in Texas : Aspidoscelis laredoensis and A. gularis, with notes on reproduction of a hybrid. (American Museum novitates, no. 3947)

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dc.contributor.author Cole, Charles J.
dc.contributor.author Dessauer, Herbert C.
dc.contributor.author Paulissen, Mark A.
dc.contributor.author Walker, James M. (James Martin)
dc.date.accessioned 2020-03-04T16:42:48Z
dc.date.available 2020-03-04T16:42:48Z
dc.date.issued 2020-03-06
dc.identifier.uri http://digitallibrary.amnh.org/handle/2246/7010
dc.description 13 pages : illustrations (some color) ; 26 cm. en_US
dc.description.abstract Karyotypes and allozyme data for 32 genetic loci overwhelmingly support the conclusion that Aspidoscelis laredoensis is a diploid all-female species that had a hybrid origin between A. gularis x A. sexlineatus. Comparisons of allozymes in individuals representing three mother-to-daughter generations raised in the laboratory suggest that they reproduce by parthenogenetic cloning. In addition to two previously described morphotypes (pattern classes A and B) that occur in southern Texas, we report the existence of three all-female clonal lineages based on allozymes. Individuals of at least one of these lineages occasionally hybridize in nature with males of A. gularis, producing viable and healthy triploid offspring that can grow to adulthood, one of which herself produced an offspring in the laboratory and could have represented a new, clonal triploid species. The possibility exists that cloned offspring of triploid hybrids are present in South Texas and/or northern Mexico, awaiting discovery. These would represent a new species that would appear to be very similar to A. laredoensis. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates;no.3947.
dc.subject Aspidoscelis laredoensis. en_US
dc.subject Aspidoscelis gularis. en_US
dc.subject Aspidoscelis sexlineatus. en_US
dc.subject Aspidoscelis. en_US
dc.subject Hybridization. en_US
dc.subject Genetics. en_US
dc.subject Reproduction. en_US
dc.subject Parthenogenesis in animals. en_US
dc.subject Cloning. en_US
dc.subject Lizards. en_US
dc.subject Texas, South. en_US
dc.title Hybridization between whiptail lizards in Texas : Aspidoscelis laredoensis and A. gularis, with notes on reproduction of a hybrid. (American Museum novitates, no. 3947) en_US
dc.title.alternative Aspidoscelis laredoensis and A. gularis hybridization. en_US


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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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