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- W4310497746 abstract "Abstract Self-incompatibility (SI) in the grass family (Poaceae) is controlled by a gametophytic two-locus system (S and Z). Recent studies have revealed several genes linked to the S and Z loci, but their roles remain largely unclear. Here, we discover that OlS1-HPS10 and OlS1-DUF247-1 control self-incompatibility of African wild rice (Oryza longistaminata), a Poaceae species. OlS1-HPS10 and OlS1-DUF247-1 encode a small extracellular pistil peptide and a pollen-specific transmembrane protein, respectively, which can physically interact with each other to form a potential membrane-based signaling module. Multiple independent knockouts of OlS1-HPS10 or OlS1-DUF247-1 by CRISPR-Cas9 result in the respective breakdowns of the pistil and the pollen function of the S1 haplotype in O. longistaminata, suggesting that they control SI in a self-recognition manner. Furthermore, the orthologs of both OlS1-HPS10 and OlS1-DUF247-1 are the Oryzoideae- and Pooideae-specific and their linkage occurred around 50 million years ago, showing that the S-locus originated in the early Oryzoideae lineage of the grass family. Taken together, our results demonstrate that the pistil OlS1-HPS10 and the pollen OlS1-DUF247-1 together form a self-recognition system to control the gametophytic SI in O. longistaminata, uncovering a Poaceae-lineage-specific innovation of SI mechanism in angiosperms." @default.
- W4310497746 created "2022-12-11" @default.
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- W4310497746 date "2022-12-01" @default.
- W4310497746 modified "2023-09-26" @default.
- W4310497746 title "Control of gametophytic self-incompatibility in the African wild rice" @default.
- W4310497746 doi "https://doi.org/10.21203/rs.3.rs-2121145/v1" @default.
- W4310497746 hasPublicationYear "2022" @default.
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