Karyotypes of coralsnakes (Reptilia: Elapidae) from the western hemisphere, with comments on intraspecific variation and centric fission of chromosomes

Title Variants

Alternative: Karyotypes of coralsnakes (Reptilia: Elapidae)

Related Titles

Series: American Museum novitates, number 3972

By

Cole, Charles J. , author

Type

Book

Material

Published material

Publication info

New York, NY, American Museum of Natural History, [2021]

Notes

Caption title.

"July 19, 2021."

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.

Subjects

Arizona coral snake , Chromosomes , Coral snakes , Evolution , Genetics , Karyotypes

Call Number

QL1 .A436 no. 3972 2021

Language

English

Identifiers

DOI: https://doi.org/10.1206/3972.1
OCLC: 1260451840