Summary
The surface morphology of primary spermatocytes from testicular cysts of the last instar larvae of Spodoptera littoralis was examined by scanning electron microscopy (SEM). At this stage, each primary spermatocyte possesses four developing flagella, directed towards the lumen of the cyst. The identical length of flagella in all primary spermatocytes from a single cyst indicates that the initiation and rate of flagellar growth are synchronized. Some asynchrony can, however, be observed in the translocation of flagella to secondary spermatocytes during the first meiotic division.
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Godula, J. Quadriflagellar primary spermatocytes in the cotton leafworm, Spodoptera littoralis (Boisd.) (Noctuidae, Lepidoptera). Cell Tissue Res. 242, 681–683 (1985). https://doi.org/10.1007/BF00225438
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DOI: https://doi.org/10.1007/BF00225438