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The chromosomes of cryptobranchus allegheniensis

✍ Scribed by Sajiro Makino

Publisher: John Wiley and Sons
Year: 1935
Tongue: English
Weight: 494 KB
Volume: 58
Category: Article
ISSN: 0362-2525
DOI: 10.1002/jmor.1050580210

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✦ Synopsis

Abstract

The number and behavior of the chromosomes have been investigated in the spermatogenesis of Cryptobranchus allegheniensis. The spermatogonium contains sixty‐two chromosomes, which are composed of twelve atelomitic V‐shaped ones, and eighteen long and thirty‐two short telomitic ones. The haploid number of chromosomes is ascertained to be thirty‐one in both of the primary and secondary spermatocytes.

The chromosomal relation between the present species and Megalobatrachus japonicus, a closely related form, has been discussed.

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