Genetic Linkages between Circadian Clock-Associated Components and Phytochrome-Dependent Red Light-Signal Transduction in <i>Arabidopsis thaliana</i>

DOI

Bibliographic Information

Other Title
  • シロイヌナズナの成長初期段階の胚軸伸張制御における時計関連因子と赤色光情報伝達系との遺伝的関係

Abstract

The current best candidates for Arabidopsis thaliana clock components are CCA1 and its homolog LHY. In addition, five members of a small family, PRR1(TOC1), PRR3, PRR5, PRR7, and PRR9, are believed to be another type of clock component. Interestingly, seedlings of A. thaliana carrying a certain lesion (i.e., loss-of-function or misexpression) of a given clock-associated gene commonly display a characteristic phenotype of light response during early photomorphogenesis. These phenotypes are indicative of linkage between the circadian clock and red light-signal transduction mechanisms. Here we addressed this point by conducting combinatorial genetic and epistatic analyses with a large number of mutants and transgenic lines carrying lesions in clock-associated genes. Taking these results together, we propose a genetic model for clock-associated red light signaling. We also discus about the recently proposed PIF4 and PIF5 (PIL5) mediated coincidence models of hypocotyls elongation in diurnal conditions.

Journal

Details 詳細情報について

  • CRID
    1390001205633048320
  • NII Article ID
    130006995035
  • DOI
    10.14841/jspp.2008.0.0615.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top