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Table 2.

Summary of phenotypes observed in insertion mutant lines with transmission deficiency through the female gametes

Phenotype observedNumber of lines
Embryo sac with one functional megaspore 
Embryo sac arrested at two-nuclear stage 
Embryo sac arrested at four-nuclear stage 
Embryo sac with varying defects in nuclei number and position 
Unfused polar nuclei 18 
Mutants showing embryo sacs arrested at varying stages of development 
Defects in fertilization 18 
Arrested at one-cell zygotic stage  
Endosperm development abnormal or arrested 56 
Endosperm development normal 
Embryo development arrested 
Total 130 
Phenotype observedNumber of lines
Embryo sac with one functional megaspore 
Embryo sac arrested at two-nuclear stage 
Embryo sac arrested at four-nuclear stage 
Embryo sac with varying defects in nuclei number and position 
Unfused polar nuclei 18 
Mutants showing embryo sacs arrested at varying stages of development 
Defects in fertilization 18 
Arrested at one-cell zygotic stage  
Endosperm development abnormal or arrested 56 
Endosperm development normal 
Embryo development arrested 
Total 130 
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