Genomic imprinting and reproductive barrier observed in the hybrid endosperm of rice

DOI

Bibliographic Information

Other Title
  • イネの胚乳における生殖隔離機構とゲノムインプリンティング

Description

Defect of the endosperm development is observed in inter-specific crosses of many plant species. Abnormal endosperm development causes seed abortion, therefore, this phenomenon is known to be a reproductive barrier after fertilization. Several reports suggested that defect of endosperm development is caused by the functional difference between parental genome. One of the possible molecular mechanisms underlying this phenomenon can be genomic imprinting, an epigenetic mechanism resulting in mono-allelic gene expression by parent-of-origin dependent manner. Recent advances of the study of genomic imprinting in Arabidopsis are applied to understand the reproductive barrier of hybrid endosperm in rice.<br>To begin with, we analyzed how imprinted genes are involved in the development of hybrid endosperm. We conducted inter-specific cross between cultivated and wild rice and observed developmental defect in the hybrid endosperm. We also investigated the expression of imprinted gene. Possible involvement of genomic imprinting in the hybrid endosperm will be presented.

Journal

Details 詳細情報について

  • CRID
    1390001205630063232
  • NII Article ID
    130006990591
  • DOI
    10.14841/jspp.2008.0.0488.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top