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Cell number in early embryos from strains of mice selected for large and small body size

Published online by Cambridge University Press:  14 April 2009

Patricia Bowman  and
Anne McLaren
Patricia Bowman
Affiliation:
Department of Genetics, Edinburgh University
Anne McLaren
Affiliation:
Agricultural Research Council Unit of Animal Genetics, Edinburgh University
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Summary

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Embryos were recovered 3½ days post coitum from females of three replicate large- and small-selected Q-strain lines, together with their unselected control lines. Selection had been carried out by D.S. Falconer, resulting in large and small lines which differed two-fold in adult body weight. Females of the large lines yielded significantly more embryos than those of the other lines. Embryo cell number showed significant heterogeneity among replicates, but was similar in large, small and unselected lines. The data are not consistent with the hypothesis that the divergence in adult body weight is due to a uniform difference in rate of cell division throughout development.

Type
Short Papers
Information
Genetics Research , Volume 15 , Issue 2 , April 1970 , pp. 261 - 263
Copyright
Copyright © Cambridge University Press 1970

References

REFERENCES

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