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Karyotypes of coralsnakes (Reptilia: Elapidae) from the western hemisphere, with comments on intraspecific variation and centric fission of chromosomes (American Museum novitates, no. 3972)

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dc.contributor.author Cole, Charles J.
dc.date.accessioned 2021-07-19T18:36:24Z
dc.date.available 2021-07-19T18:36:24Z
dc.date.issued 2021-07-19
dc.identifier.issn 0003-0082
dc.identifier.uri http://hdl.handle.net/2246/7269
dc.description 8 pages : illustrations ; 26 cm. en_US
dc.description.abstract Karyotypes are described for Micruroides euryxanthus from Arizona and Micrurus tener from Texas. These are compared with karyotypes of other elapids from around the world, which exhibit significant interspecific variation. The largest macrochromosome of M. euryxanthus, which is metacentric, is shared by only two other species of coralsnakes from the New World. This may be a shared ancestral chromosome homologous to the largest macrochromosome that occurs in most other snakes, including some of the Australian elapids. The karyotype of M. tener from Texas has a ZZ:ZW1W2 sex chromosome system, which differs from individuals of this species reported previously from Louisiana. Over the relatively young 35-million-year global history of the Elapidae, karyotypes appear to have varied more than those of most other snakes throughout a 140-million-year history. 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.3972.
dc.subject Karyotypes. en_US
dc.subject Coral snakes -- Genetics. en_US
dc.subject Coral snakes -- Evolution. en_US
dc.subject Arizona coral snake -- Genetics. en_US
dc.subject Arizona coral snake -- Evolution. en_US
dc.subject Chromosomes. en_US
dc.title Karyotypes of coralsnakes (Reptilia: Elapidae) from the western hemisphere, with comments on intraspecific variation and centric fission of chromosomes (American Museum novitates, no. 3972) 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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