Mohamed  Amin Bassiouni, Zakia  Riad, Salah  Bah, 
    Study on the Reproduction of the Species <I>Aglaiella stagnalis</I> (Ostracoda) From the Bottom Sediments of Lake Qarun (Egypt),
    Online Journal of Earth Sciences,
    Volume 5,Issue 1,
    2011,
    Pages 1-5,
    ISSN 1991-7708,
    ojesci.2011.1.5,
    (https://makhillpublications.co/view-article.php?doi=ojesci.2011.1.5)
    Abstract: Different development stages of the genus <I>Aglaiella stagnalis</I> (ostracodes) were observed in field and laboratory. The study aimed to check up the cell division and the identity of chromosomes for the species <I>Aglaiella stagnalis</I>. Samples were collected in monthly bases on the period from October 1978-1980 from Auberg location. A large number of metaphases could be speculated, each metaphase includes a number of chromatin masses which were presumed to be the chromosomes in metaphase. Their number per nucleus varied between 8, 24 and 12 was the most common number. Each presumed chromosome occurred as a clump of chromatin with no differentiation to arms or centromeric part and they do not equal in size where in each metaphase three of these masses are larger than the rest of set. In dissected animals, some developing youngs could be spotted in the gonads all at the same stage of development. These populations of gonadal cells were either in metaphase or showed one or another uniform stage of embryonic development. The picture on the whole gives an impression of a sort amitotic division followed by parthenogenetic development of the youngs <I>in vivo</I>.
    Keywords: laboratory;Egypt;populations;embryonic development;gonadel cells;chromosome;Metaphase