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The double spermatogenesis in scutigera coleptratrata (Myriapoda, Chilopoda): macro-and Microspermaltocyte growth

Published online by Cambridge University Press:  26 September 2008

Carol C. Pruescu ,
Michel Descamps ,
Marie-Chantal Fabre  and
Antoni Serra
Carol C. Pruescu
Affiliation:
Institute de Biologie, Bucharest, Romania, Université des Sciences et Technologies de Lille, France and Univesitat de Barcelona,Spain
Michel Descamps*
Affiliation:
Institute de Biologie, Bucharest, Romania, Université des Sciences et Technologies de Lille, France and Univesitat de Barcelona,Spain
Marie-Chantal Fabre
Affiliation:
Institute de Biologie, Bucharest, Romania, Université des Sciences et Technologies de Lille, France and Univesitat de Barcelona,Spain
Antoni Serra
Affiliation:
Institute de Biologie, Bucharest, Romania, Université des Sciences et Technologies de Lille, France and Univesitat de Barcelona,Spain
*
M.Descamps, Laboratoire de Biologie Animale, Ecophysiologie D' Invertébré du Sol, Université des Sciences et Technologies de Lille, F-59655 Villeneuve D'Ascq Cedex, France. Fax: 33 20 43 68 49.
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Summary

In Scutigera coleoptrata, double spermatogenesis (macro and micro germinal cells) was reinvesti gted by means of both image analysis and electron microscopy. Image analysis of the cell-lines showed no differences in DNA content between the two types of spermatogesis.The only difference found, with the exception of the size and the related number of organelles, was that in the macro-cell line the chromatin was well dispersed and no condensed, which is the opposite of what was observed in the macro-cell line. It is asumed that the level of activity related to this condensation process is at the origin of the two pathways of development.

Keywords

ChilopodaDNA ContentSpematocyte growthSpermatogenesisUltrastrucure
Type
Article
Information
Zygote , Volume 3 , Issue 2 , May 1995 , pp. 171 - 176
Copyright
Copyright © Cambridge University Press 1995

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