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:0001106
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spindle orientation variant AB or P1 early emb
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The orientation of the spindle is aberrant in either the AB or the P1 cell. |
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:0001165
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excess maternal pronucleus early emb
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One-cell embryos have two or more maternal pronuclei. |
WBPhenotype:0001139
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nuclear envelope assembly variant early emb
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Nuclear envelope does not reassemble properly. |
WBPhenotype:0001121
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exaggerated asynchrony early emb
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Asynchrony of the second division is exaggerated and P1 divides more slowly than normal. |
WBPhenotype:0001163
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pronucleus formation failure early emb
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Either the maternal or paternal pronucleus is absent. |
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: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: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:0001156
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pronuclear size defective early emb
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Maternal or paternal pronucleus is either too small or too large. |
WBPhenotype:0001141
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nucleus reforms cell division remnant early emb
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After division of either one-cell or two-cell embryos, the nuclei reappear next to the cell division remnant. |
WBPhenotype:0001080
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excessive blebbing early emb
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Excessive shaking and movements are seen in the cell membrane or cytoplasm of one-cell or two-cell embryos. |
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. |