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Journal of Cell Science, Vol 14, 499-504, Copyright © 1974 by Company of Biologists

Submitted on July 2, 1973
Revised on October 22, 1973

Different Kinds of Heterochromatin in Higher Plant Chromosomes

S. M. STACK 1, C. R. CLARKE 1, W. E. CARY 1, and J. T. MUFFLY 1

1 Department of Botany and Plant Pathology, Colorado State University Fort Collins, Colorado 80521, U.S.A.

After the use of different Giemsa staining techniques, variations in chromosome banding patterns have often been observed in animal chromosomes. Such staining differences are usually interpreted to indicate that there is more than one type of heterochromatin in many animal chromosomes. Using two differential Giemsa staining techniques we have found different staining patterns in the chromosomes of two higher plants, Allium cepa and Ornithogalum virens. Furthermore, pericentric heterochromatin that occurs so commonly in animal chromo-somes was specifically Giemsa stained in O. virens. These results suggest the basic similarity of higher plant and animal chromosomes.

Submitted on July 2, 1973
Revised on October 22, 1973






© The Company of Biologists Ltd 1974