XB-ART-54644
Cold Spring Harb Protoc
2018 Mar 01;20183:. doi: 10.1101/pdb.prot097014.
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Whole-Mount In Situ Hybridization of Xenopus Oocytes.
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Whole-mount in situ hybridization (WMISH) is a common approach that is used to visualize spatial and temporal gene expression in embryos. In this process, digoxygenin-labeled antisense RNA is hybridized to the complementary transcript of interest and RNA hybrids are immunohistochemically detected using an alkaline phosphatase-conjugated antibody against digoxigenin. During Xenopus laevis oogenesis, certain RNAs localize to the animal or vegetal pole laying the foundation for germ cell development and germ layer formation of the future embryo. Here we present a WMISH protocol for Xenopus laevis oocytes allowing for the efficient detection of localized RNAs in a large number of oocytes during different stages of oogenesis. The application of this approach might be combined with microinjection of tagged reporter RNAs and/or a gain- or loss-of-function background, allowing for the functional analysis of single protein factors involved in RNA localization.
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