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:0001139
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nuclear envelope assembly variant early emb
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Nuclear envelope does not reassemble properly. |
WBPhenotype:0001105
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P0 spindle position abnormal
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Altered P0 spindle placement causes either a symmetric first division, a division in which P1 is larger than AB, or a division in which the asymmetry is exaggerated such that AB is much larger than normal. |
WBPhenotype:0001119
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cell cycle slow early emb
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Embryos take longer to divide during the first and second cell divisions. |
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:0001161
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maternal pronucleus indistinct early emb
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Maternal pronucleus has a blurry appearance. The nuclear envelope does not have a crisp circular shape. |
WBPhenotype:0001126
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cell cell contacts abnormal in four cell embryo
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Aba, ABp, EMS, or P1 contacts fewer of its sister cells than in control embryos. |