Open AccessOogenesis in oniscus asellus
Author(s) -
S. D. King
Publication year - 1926
Publication title -
proceedings of the royal society of london. series b, containing papers of a biological character
Language(s) - English
Resource type - Journals
eISSN - 2053-9185
pISSN - 0950-1193
DOI - 10.1098/rspb.1926.0029
Subject(s) - oogenesis , yolk , biology , cytoplasm , zoology , cytoplasmic inclusion , evolutionary biology , anatomy , oocyte , microbiology and biotechnology , ecology , embryo
The behaviour of the cytoplasmic inclusions during oogenesis has been investigated in many animals by different observers, and the results of these researches show that there is a great deal of variation in the behaviour of these inclusions in different forms. It is also known that the cytoplasmic inclusions behave in different ways even in quite closely related groups, so that yolk in one animal may have a totally different origin from that formed in the oocytes of another standing close to it in the evolutionary scale. Thus, in studying the course of oogenesis in any animal, it is often as useful to use totally unrelated forms for comparison as those which belong to the same class or phylum. No previous work has been done on the cytoplasmic inclusions in the oogenesis of Oniscus, but it may be useful to summarise what is known to occur in certain other animals for the purposes of comparison.