Expression patterns of class I KNOX and YABBY genes in Ruscus aculeatus (Asparagaceae) with implications for phylloclade homology

• Hirayama, Yumiko

• Yamada, Toshihiro

• Oya, Yukiko

• Ito, Motomi

• Kato, Masahiro

• Imaichi, Ryoko

Abstract

金沢大学大学院自然科学研究科生物多様性動態学

金沢大学理学部

STM (RaSTM) and YAB2 (RaYAB2) homologues were isolated from Ruscus aculeatus (Asparagaceae, monocots), and their expressions were analyzed by real-time polymerase chain reaction (PCR) to assess hypotheses on the evolutionary origin of the phylloclade in the Asparagaceae. In young shoot buds, RaSTM is expressed in the shoot apex, while RaYAB2 is expressed in the scale leaf subtending the shoot bud. This expression pattern is shared by other angiosperms, suggesting that the expression patterns of RaSTM and RaYAB2 are useful as molecular markers to identify the shoot and leaf, respectively. RaSTM and RaYAB2 are expressed concomitantly in phylloclade primordia. These results suggest that the phylloclade is not homologous to either the shoot or leaf, but that it has a double organ identity. © Springer-Verlag 2007.

Journal

• Development Genes and Evolution

  Development Genes and Evolution 217 (5), 363-372, 2007-03-01

  Springer Verlag

Keywords

• Asparagaceae
• Phylloclade
• Ruscus aculeatus
• STM
• YABBY

Details

• CRID: 1050001335942276096
• NII Article ID: 120000809037
• ISSN: 0949944X
• Web Site: http://hdl.handle.net/2297/5483
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles