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Apparent triploidy in the unisexual brahminy blind snake, Ramphotyphlops braminus. American Museum novitates ; no. 2868

Show simple item record Wynn, Addison H., 1955- en_US Cole, Charles J. en_US Gardner, Alfred L. en_US 2005-10-06T18:09:11Z 2005-10-06T18:09:11Z 1987 en_US
dc.description 7 p. : ill. ; 26 cm. en_US
dc.description Includes bibliographical references (p. 6-7). en_US
dc.description.abstract "Specimens of Ramphotyphlops braminus (all females) from hawaii, the Seychelles, and south Florida, were karyotyped and compared to other typhlopid species. thechromosome number of R. braminus is 42, compared to 2n = 32 for the diploid species Rhinotyphlops schlegelii and Typhlops simoni, and 2n = 34 for Typhlops jamaicensis and T. richardi. The higher number of chromosomes found in R. braminus is best explained by interpreting the karyotype to be triploid, and the chromosomes can easily be grouped into triplets. With the triploid interpretation, few Robertsonian changes are necessary to explain differences between the haploid karyotypes of R. braminus and T. jamaicensis, with which it is directly compared. Furthermore, the electrophoretic pattern of one dimeric protein, heterozygous in all five individuals from the Seychelles, is best interpreted as having a 1:4:4 pattern, consistent with an interpretation that R. braminus is triploid. Chromosomal heteromorphisms found in all individuals from the three populations are consistent with evidence that R, braminus is parthenogenetic, regardless of the interpretation of ploidy level"--P. []1. en_US
dc.format.extent 1222925 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York, N.Y. : American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates ; no. 2868 en_US
dc.subject.lcc QL1 .A436 no.2868, 1987 en_US
dc.subject.lcsh Ramphotyphlops braminus -- Genetics. en_US
dc.subject.lcsh Karyotypes. en_US
dc.subject.lcsh Snakes -- Hawaii en_US
dc.subject.lcsh Snakes -- Seychelles en_US
dc.subject.lcsh Snakes -- Florida en_US
dc.subject.lcsh Reptiles -- Hawaii en_US
dc.subject.lcsh Reptiles -- Seychelles en_US
dc.subject.lcsh Reptiles -- Florida en_US
dc.subject.lcsh Cytotaxonomy. en_US
dc.subject.lcsh Parthenogenesis in animals. en_US
dc.title Apparent triploidy in the unisexual brahminy blind snake, Ramphotyphlops braminus. American Museum novitates ; no. 2868 en_US
dc.type text 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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