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• W4387451808 abstract "Abstract Prevention of autonomous division of the egg apparatus and central cell in a female gametophyte before fertilization ensures successful reproduction in flowering plants. Here we show that rice ovules of Polycomb repressive complex 2 (PRC2) Osfie1 and Osfie2 double mutants exhibit asexual embryo and autonomous endosperm formation at a high frequency, while ovules of single Osfie2 mutants display asexual pre-embryo-like structures at a lower frequency without fertilization. Earlier onset, higher penetrance and better development of asexual embryos in the double mutants compared with those in Osfie2 suggest that the autonomous endosperm facilitated asexual embryo development. Transcriptomic analysis showed that male genome-expressed OsBBM1 and OsWOX8/9 were activated in the asexual embryos. Similarly, the maternal alleles of the paternally expressed imprinted genes were activated in the autonomous endosperm, suggesting that the egg apparatus and central cell convergently adopt PRC2 to maintain the non-dividing state before fertilization, possibly through silencing of the maternal alleles of male genome-expressed genes." @default.
• W4387451808 created "2023-10-10" @default.
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• W4387451808 date "2023-10-09" @default.
• W4387451808 modified "2023-10-15" @default.
• W4387451808 title "Mutation in Polycomb repressive complex 2 gene OsFIE2 promotes asexual embryo formation in rice" @default.
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• W4387451808 doi "https://doi.org/10.1038/s41477-023-01536-4" @default.
• W4387451808 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37814022" @default.

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