WBPhenotype:0000050
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embryonic lethal
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Animals die during embryonic development. In C. elegans, often assayed as refractile eggs that fail to hatch; when applied to large-scale RNAi screens in C. elegans, more than 10% of embryos die. |
WBPhenotype:0001177
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embryo osmotic pressure sensitive early emb
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Embryos rupture when placed on a 2% agar pad and covered with a coverslip. |
WBPhenotype:0001155
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pronuclei meet centrally early emb
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The maternal and paternal pronuclei meet more centrally instead of meeting in the posterior end of the embryo. |
WBPhenotype:0001082
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large cytoplasmic granules early emb
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Abnormally large granules are observed in the cytoplasm of P0. |
WBPhenotype:0001143
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multiple nuclei early emb
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Embryos contain more than one nucleus per cell in the inviable one- to four-cell embryo. |
WBPhenotype:0001130
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cytokinesis fails early emb
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Cells of the embryo attempt to divide but fail to form two daughter cells. |
WBPhenotype:0000689
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maternal sterile
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Animals produce no or very few embryos as a result of experimental treatment. This is in contrast to sterility due to genetic perturbations (maternal effect sterility). |
WBPhenotype:0001153
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pronuclear migration failure early emb
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Neither of the pronuclei migrate and they never meet. |
WBPhenotype:0002501
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ectopic cleavage furrow early emb
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One or more cells of the early embryo (one-cell stage to four-cell stage) exhibit one or more cleavage furrows in locations not normally found in control cells. |
WBPhenotype:0001158
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pronuclear breakdown asynchronous early emb
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Instead of breaking down synchronously, the two pronuclei break down asynchronously in the inviable one-cell embryo. |
WBPhenotype:0001147
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polar body defective early emb
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Polar bodies are abnormal in the inviable one- to four-cell embryo. |
WBPhenotype:0001108
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P0 spindle rotation failure early emb
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P0 spindle fails to rotate and extends perpendicular to the long axis of the embryo. |