Stumpy Limb—An Embryonic Lethal Mutation in Japanese Quail (<I>Coturnix coturnix japonica</I>)

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  • TSUDZUKI Masaoki
    <I>Department of Laboratory Animal Science, College of Agriculture, University of Osaka Prefecture</I>
  • WAKASUGI Noboru
    <I>Laboratory of Animal Reproduction, School of Agriculture, Nagoya University</I>
  • MORIOKA Hiroshi
    <I>Department of Laboratory Animal Science, College of Agriculture, University of Osaka Prefecture</I>
  • ESAKI Kozaburo
    <I>Department of Laboratory Animal Science, College of Agriculture, University of Osaka Prefecture</I>

Bibliographic Information

Other Title
  • ニホンウズラに見いだされた致死性突然変異"stumpy limb"の特徴および遺伝分析

Description

An embryonic lethal mutant was found in Japanese quail and named“stumpy limb (SL) ”. All SL embryos died at pre-hatching stages, showing brachycephaly, a thickened neck, short upper and lower beaks, and short and thick extremities, while their body length was similar to that of the normal embryos. Observations on the skeleton revealed a globular skull, unusual curvature of theProcessus palatines maxillarisof the upper beak, and shortening and thickening of the appendicular bones. Some embryos showed a bending of the humerus, femur and/or tibiotarsus. Abnormality was more conspicuous in the leg bones than in the wing bones. No conspicuos differences were observed in the vertebrae between the SL and normal embryos. A genetic analysis suggested that the mutation is controlled by an autosomal recessive gene, for which the gene symbol sl was proposed.

Journal

  • Experimental Animals

    Experimental Animals 40 (4), 529-536, 1991

    Japanese Association for Laboratory Animal Science

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