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Effect of Hormonal Stimulation on the Oocyte Chromosomal Apparatus in the Common Frog
AbstractLate vitellogenic oocytes in the common frog, Rana temporaria , represent a promising model for studying the behavior of meiotic chromosomes,...
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Transcriptome analysis of Schizothorax oconnori (Cypriniformes: Cyprinidae) oocytes: The role of K+ in promoting yolk globule fusion and regulating oocyte maturation
Schizothorax oconnori ( S. oconnori ) is an economically important fish in Tibet. Oocyte maturation is a physiological process that is of great...
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Description of the Sex Hormone-Secreting Cells during Oocyte Development and Atresia in Flathead Grey Mullet Mugil cephalus (Mugilidae) in Al-Bardawil Lagoon, Egypt
AbstractThe present study described the changes of steroidogenic cells accompanied the ovarian maturation in flathead grey mullet, Mugil cephalus ,...
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Variations in Red Snapper oocyte development and spawning in relation to environmental and habitat parameters
The reproductive biology of Red Snapper, Lutjanus campechanus , is well understood, but there is little information on the impact of environmental,...
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In vitro induction of catfish, Clarias batrachus, oocyte maturation by conspecific vitellogenin 1 (CFVg1)
Present study demonstrates that conspecific vitellogenin1 (CFVg1) induces oocyte maturation in the catfish, Clarias batrachus . CFVg1 is able to...
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Diet Composition and Reproductive Properties of European Conger, Conger conger (Congridae) in the Turkish Aegean Sea
AbstractThe diet composition and reproductive properties of European conger, Conger conger (Linnaeus, 1758) were investigated from the Aegean Sea of...
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Oocyte and embryonic development, size at sexual maturity, and spawning season of Charybdis bimaculata
This study describes the first thorough investigation of oocyte and embryonic development as well as histologically confirmed size at sexual maturity...
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Reproduction
Eels do not mature under captive conditions. It is not uncommon for fish to begin and complete their final maturation under closed aquaculture...
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Reproductive Condition in the Caspian Anadromous Shad Alosa kessleri kessleri (Alosidae) during Spawning Migration in the Volga River
AbstractThis paper describes the state of the gonads of Caspian anadromous shad, Alosa kessleri kessleri (Grimm, 1887), migrating for spawning in...
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Genetic evidence for differential functions of figla and nobox in zebrafish ovarian differentiation and folliculogenesis
FIGLA and NOBOX are important oocyte-specific transcription factors. Both figla-/- and nobox-/- mutants showed all-male phenotype in zebrafish due to...
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Morphology, Histology, and Transcriptome Analysis of Gonadal Development in Octopus minor (Sasaki, 1920)
Octopus minor is an economically important species, but little is known about the histological pattern and regulatory mechanisms during gonadal...
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Krüppel-homolog 1 exerts anti-metamorphic and vitellogenic functions in insects via phosphorylation-mediated recruitment of specific cofactors
BackgroundThe zinc-finger transcription factor Krüppel-homolog 1 (Kr-h1) exerts a dual regulatory role during insect development by preventing...
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Role of cathepsins B and D in proteolysis of yolk in the catfish Clarias gariepinus
Yolk processing pathways vary in the oocytes of benthophil and pelagophil teleosts. The present study investigated the yolk processing pattern in the...
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Female Gonads
Similar to most Cyprinidae, zebrafish ovaries are divided into left and right leaf, fixed on both sides of the abdominal cavity through the...
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Morphological aspects of oogenesis in the deep-sea clam Calyptogena pacifica (Pliocardiinae; Vesicomyidae)
The ultrastructure of oogenic cells and mature oocytes has been described in a deep-sea clam, Calyptogena pacifica , for the first time. Specimens...
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Reproductive biology and population structure of three hydrothermal gastropods (Lepetodrilus schrolli, L. fijiensis and Shinkailepas tollmanni) from the South West Pacific back-arc basins
Hydrothermal vents host fragmented habitats and are increasingly becoming the target of deep-sea mining projects for their mineral resources....
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On the reproduction of the solitary cold-water coral Fungiacyathus fragilis Sars, 1872 (Cnidaria: Scleractinia), and a new record in the SW Atlantic Ocean deep sea
The first record of the solitary stony coral Fungiacyathus ( Fungiacyathus ) fragilis is reported from the southwestern Atlantic Ocean. Specimens were...
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Unusual Biomolecular Condensates Containing Nucleoporins or Lamin in the Germinal Vesicle of the Common Frog
AbstractThe nucleus (germinal vesicle, GV) of late vitellogenic oocytes of the European common frog, Rana temporaria , was found to contain...
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Sex Hormones and Their Role in Gonad Development and Reproductive Cycle of Fishes
The development of captive broodstock and reproductive maturation is essential for induced breeding. The reproductive cycle of fish is divided into...
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Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes
The link between the dynamic organization of the ovary and spawning dynamics was investigated in pelagic fishes with indeterminate fecundity. Αn...
