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. 2023 Feb;597(3):407-417.
doi: 10.1002/1873-3468.14570. Epub 2023 Jan 24.

Transcriptome analyses uncover reliance of endosperm gene expression on Arabidopsis embryonic development

Yilin Zhang  1 , Daisuke Maruyama  2 , Erika Toda  3 , Atsuko Kinoshita  3 , Takashi Okamoto  3 , Nobutaka Mitsuda  4 , Hironori Takasaki  1 , Masaru Ohme-Takagi  1   5
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Free article

Transcriptome analyses uncover reliance of endosperm gene expression on Arabidopsis embryonic development

Yilin Zhang et al. FEBS Lett. 2023 Feb.
Free article

Abstract

Endosperm-embryo development in flowering plants is regulated coordinately by signal exchange during seed development. However, such a reciprocal control mechanism has not been clearly identified. In this study, we identified an endosperm-specific gene, LBD35, expressed in an embryonic development-dependent manner, by a comparative transcriptome and cytological analyses of double-fertilized and single-fertilized seeds prepared by using the kokopelli mutant, which frequently induces single fertilization events. Transcriptome analysis using LBD35 as a marker of the central cell fertilization event identified that 141 genes, including 31 genes for small cysteine-rich peptides, are expressed in a double fertilization-dependent manner. Our results reveal possible embryonic signals that regulate endosperm gene expression and provide a practicable method to identify genes involved in the communication during endosperm-embryo development.

Keywords: double fertilization; embryo dependence; endosperm; single fertilization.

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References

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