<i>NEEDLY</i> , a <i>Pinus radiata</i> ortholog of <i>FLORICAULA/LEAFY</i> genes, expressed in both reproductive and vegetative meristems

DOI Web Site 被引用文献5件
  • Aidyn Mouradov
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia
  • Tina Glassick
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia
  • Britt Hamdorf
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia
  • Lawrence Murphy
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia
  • Beth Fowler
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia
  • Soma Marla
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia
  • Robert D. Teasdale
    ForBio Research, 50 Meiers Road, Indooroopilly QLD 4068, Australia; and Queensland Institute of Medical Research, 300 Herston Road, Herston QLD 4029, Australia

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<jats:p> The <jats:italic>LEAFY/FLORICAULA</jats:italic> genes from <jats:italic>Arabidopsis</jats:italic> and <jats:italic>Antirrhinum</jats:italic> are necessary for normal flower development and play a key role in diverse angiosperm species. A homologue of these flower meristem-identity genes, <jats:italic>NEEDLY</jats:italic> ( <jats:italic>NLY</jats:italic> ), has been identified in <jats:italic>Pinus radiata</jats:italic> . Although the NLY protein shares extensive sequence similarity with its angiosperm counterparts, it is lacking the proline-rich and acidic motifs thought to function as transcriptional activation domains. <jats:italic>NLY</jats:italic> already is expressed during vegetative development at least 5 years before the transition to the reproductive phase. Expression of <jats:italic>NLY</jats:italic> in transgenic <jats:italic>Arabidopsis</jats:italic> promotes floral fate, demonstrating that, despite its sequence divergence, <jats:italic>NLY</jats:italic> encodes a functional ortholog of the <jats:italic>FLORICAULA/LEAFY</jats:italic> genes of angiosperms. Expression of the <jats:italic>LFY∷NLY</jats:italic> transgene can largely complement the defects in flower development caused by a severe <jats:italic>lfy</jats:italic> allele. </jats:p>

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