Plasmogamic Paternal Contributions to Early Zygotic Development in Flowering Plants

Yukinosuke Ohnishi, Tomokazu Kawashima

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations


Flowering plant zygotes possess complete developmental potency, and the mixture of male and female genetic and cytosolic materials in the zygote is a trigger to initiate embryo development. Plasmogamy, the fusion of the gamete cytoplasms, facilitates the cellular dynamics of the zygote. In the last decade, mutant analyses, live cell imaging-based observations, and direct observations of fertilized egg cells by in vitro fusion of isolated gametes have accelerated our understanding of the post-plasmogamic events in flowering plants including cell wall formation, gamete nuclear migration and fusion, and zygotic cell elongation and asymmetric division. Especially, it has become more evident that paternal parent-of-origin effects, via sperm cytoplasm contents, not only control canonical early zygotic development, but also activate a biparental signaling pathway critical for cell fate determination after the first cell division. Here, we summarize the plasmogamic paternal contributions via the entry of sperm contents during/after fertilization in flowering plants.

Original languageEnglish
Article number871
JournalFrontiers in Plant Science
StatePublished - Jun 19 2020

Bibliographical note

Publisher Copyright:
© Copyright © 2020 Ohnishi and Kawashima.


  • asymmetric division
  • cell elongation
  • karyogamy
  • paternal parent-of-origin effects
  • plasmogamy

ASJC Scopus subject areas

  • Plant Science


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