Characterization of a WRKY transcription factor expressed in late torpedo-stage embryos of Solanum chacoense.
A novel WRKY-like transcription factor was isolated from a screen for weakly expressed mRNAs in ovules in the self-incompatible wild potato species Solanum chacoense Bitt. This protein, named ScWRKY1, consisted of 525 amino acids and can be classified as a WRKY group-I member, having two WRKY domains. It is expressed at low levels in stems, roots, and petals, and expressed at much higher levels in leaves. Interestingly, although barely detectable in developing seeds, it is strongly and transiently expressed in fertilized ovules bearing late torpedo-staged embryos, suggesting a specific role during embryogenesis.
Lagacé
Marie
M
Institut de Recherche en Biologie Végétale, Département de Sciences Biologiques, Université de Montréal, H1X 2B2, Montréal, Québec, Canada.
Matton
Daniel P
DP
D000595:Amino Acid Sequence; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D012639:Seeds / Q000254:growth & development* / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D032322:Solanum / Q000196:embryology* / Q000235:genetics; D014157:Transcription Factors / Q000235:genetics* / Q000378:metabolism
D004268:DNA-Binding Proteins; D010940:Plant Proteins; D014157:Transcription Factors