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The Journal of Heredity 1981:72(5):353-354
© 1981 The American Genetic Association 72:353-354

research-article

Gametophytic transcription for acid phosphatases in pollen of Cucurbita species hybrids

David L. Mulcahy, Richard W. Robinson, Masaaki Ihara, and Richard Kesseli

Department of Botany, University of Massachusetts Amherst, MA 01003
Department of Seed and Vegetable Research, Cornell University Geneva, NY 14456
Department of Biochemistry, National Institute of Genetics Mishima, 444 Japan
Department of Agronomy, University of California Davis, CA 95616

Abstract

A microslab isoelectric focusing gel is demonstrated, using single pollen grains from F1 hybrids of Cucurbita species. When zymograms of these single pollen grains were stained to indicate the presence of acid phosphatase zones, it was seen that at least 11 out of 37, or 29.7 percent of such zones are controlled by loci that are transcribed in the microgametophyte. These results suggest that gametophytically transcribed loci may be fairly common and also that their investigation is now technically unchallenging.


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