Chromosome Analysis of Hynobius arisanensis Maki, a Salamander Endemic to Taiwan

We report the first chromosome study of Hynobius arisanensis Maki, a primitive caudate species endemic to Taiwan. The karyotype, 2N = 58, consists of nine large, four medium, and 16 small homologous pairs. The morphology of the large chromosomes is quite similar to that of the previously examined Hy...

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Bibliographic Details
Published in:Herpetologica 1987-03, Vol.43 (1), p.117-119
Main Authors: Seto, Takeshi, Utsunomiya, Taeko
Format: Article
Language:English
Subjects:
Amphibia. Reptilia
Biological and medical sciences
Biological taxonomies
Chromosome morphology
Chromosomes
Endemic species
Freshwater
Fundamental and applied biological sciences. Psychology
Herpetology
Hynobius arisanensis
Karyotype
Metaphase
Salamanders
Sex chromosomes
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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Summary:We report the first chromosome study of Hynobius arisanensis Maki, a primitive caudate species endemic to Taiwan. The karyotype, 2N = 58, consists of nine large, four medium, and 16 small homologous pairs. The morphology of the large chromosomes is quite similar to that of the previously examined Hynobius species found in Japan. However, the karyotype of H. arisanensis is characterized by the absence of a telocentric pair in the medium-size group and the presence of six biarmed pairs of small chromosomes. In both of these morphological features, the karyotype resembles that of H. (Pachypalaminus) boulengeri, a Japanese, mountain stream-type species.
ISSN:0018-0831
1938-5099