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Postmating, Prezygotic Isolation among species of the Drosophila virilis subgroup
(University of Winnipeg, 2010-12-01)
Reproductive barriers between sexually reproducing organisms prevent interbreeding and
gene flow between species. Early studies of reproductive isolation focused on prezygotic and
postzygotic isolating mechanisms, yet ...
A Comparative Study of Ryanodine Receptors (RyRs) Gene Expression Levels in the Basal Ray-Finned Fish, Bichir (Polypterus ornatipinnis) and the Derived Euteleost Zebrafish (Danio rerio)
(University of Winnipeg, 2010-09)
Ryanodine receptors (RyR) mediate the controlled release of intracellular stores of calcium from the sarcoplasmic reticulum. This release of calcium, triggered by membrane-depolarization, is responsible for initiating ...
Transcriptional Down Regulation of Spermatogenesis Genes in Drosophila Interspecies Hybrids
(University of Winnipeg, 2010-10)
In Drosophila, crossing two closely related species can generate viable but sterile male offspring,typically an outcome of postzygotic reproductive isolation. Hybrids
between species of the Drosophila simulans clade show ...