Abstract
The major ribonucleoprotein inclusion bodies of the polytene nuclei from larval ventral nephrocytes, Malpighian tubules, pericardial cells, fat body and salivary glands of Calliphora stygia show characteristic developmental patterns at the light microscope level. Three morphologically and developmentally distinct classes of nuclear inclusions occur in these tissues. In fat body and salivary gland nuclei, morphological changes in the inclusion material can be correlated with the pattern of protein synthesis during the third larval instar, and with conspicuous changes in chromosome morphology. The appearance of cytologically diverse nuclear inclusions, in an ordered tissue-specific sequence, may thus reflect differential activation of the genome.
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Thomson, J.A., Gunson, M.M. Developmental changes in the major inclusion bodies of polytene nuclei from larval tissues of the blowfly, Calliphora stygia . Chromosoma 30, 193–201 (1970). https://doi.org/10.1007/BF00282000
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DOI: https://doi.org/10.1007/BF00282000