A new Mutant in the Silk-worm by Nitrogen Mustard

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概要

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• Eggs from a crossing of pe ♂ × + (M) ♀ were immersed in the solution of nitrogen mustard (Concentration is 1/3%) for about 60 minutes within an hour after laying. From these eggs, 1943 larvae were hatched out, and among them I found a mosaic larva whose left mid-quarter of the body was translucent, while the other parts were normal. Translucent characters known np to the present are, generally, disappeared at the stage of pupa, but in this individual the mosaicism was maintained to the pupal stage and the same patterns as in the larval stage was seen on the dorsal body surface of pupa (see figures). This fact that a new mutant was induced by nitrogen mustard proves that the mosaioism thus obtained by nitrogen mustard is due to the chromosomal abnormalities (deficiencies, aborrations and gene mutaions) and not to the abnormal behaviors of the egg or sperm nucleus (di-spermic merogony, etc.).

• 社団法人日本動物学会の論文
• 1950-11-15

著者

• Nakao Yoshio

  Biophysical Laboratory Faculty Of Science St.paul's University

• Nakao Yoshio

  Biophysical Laboratory St. Paul's Univ.

関連論文

• A new Mutant in the Silk-worm by Nitrogen Mustard
• Action of X-rays on the Amphibian Egg Development I.The Effect of Oxygen uponthe Relative Sensitivity of Eggs and Spermatozoa of the Toad

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