Karyotypic Studies of two Species of South American Snakes (Boa constrictor amarali and Bothrops jararaca)
- 1 January 1962
- journal article
- Published by S. Karger AG in Cytogenetic and Genome Research
- Vol. 1 (6) , 305-313
- https://doi.org/10.1159/000129740
Abstract
Karyotypic studies have been made of two species of South American snakes, Boa constrictor amarali and Bothrops jararaca. Both have 36 chromosomes; 16 macrochromosomes and 20 microchromosomes. While no morphological difference is discernible between the mitotic chromosome complements of the male and the female Boa constrictor amarali, a heteromorphic pair is evident in the female jararaca, in which the subterminal W is distinctly smaller than the mediocentric Z. Thus female heterogamety of the ZZ-ZW type is cytologically recognizable in Bothrops jararaca.Keywords
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