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expand all sections collapse all sections Oryza sativa gene "PAIR1" (GR:0100119)
Species Oryza sativa (Rice) [ GR_tax:013681 ]
Accession GR:0100119
Gene Symbol PAIR1
Gene Name HOMOLOGOUS PAIRING ABERRATION IN RICE MEIOSIS 1 
Synonyms (7)
E.C. Numbers (0)
Pathway Reactions (0)
Chromosome No. 3
Gene Type CDS (Protein coding)
Has Phenotype yes
Description The gene plays an essential role in establishment of homologous chromosome pairing and cytokinesis in male and female meiocytes. The encoded protein contains putative coiled-coil motifs in the middle, two basic regions at both termini, and a potential nuclear localization signal at the C terminus. In the mutant, tagged by the endogenous retrotransposon Tos17, during prophase I all the chromosomes became entangled to form a compact sphere adhered to a nucleolus, and homologous pairing failed to occur. This resulted in complete sterility of male and female gametes. At anaphase I and telophase I, chromosome nondisjunction and degenerated spindle formation resulted in multiple uneven spore production. It is expressed in the early stages of flower development.
toggle section Alleles (1)
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toggle section Sequences (4)
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toggle section Associated Ontologies (23)
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