Journal Article

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

Marla, S, Murphy, L, Mouradov, A. (ForBio Research, Indooroopilly, QLD, Australia.), Teasdale, R.D, Glassick, T, Fowler, B, Hamdorf, B

1998

Overview

The LEAFY/FLORICAULA genes from Arabidopsis and Antirrhinum are necessary for normal flower development and play a key role in diverse angiosperm species. A homologue of these flower meristem-identity genes, NEEDLY (NLY), has been identified in Pinus radiata. 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. NLY already is expressed during vegetative development at least 5 years before the transition to the reproductive phase. Expression of NLY in transgenic Arabidopsis promotes floral fate, demonstrating that, despite its sequence divergence, NLY encodes a functional ortholog of the FLORICAULA/LEAFY genes of angiosperms. Expression of the LFY::NLY transgene can largely complement the defects in flower development caused by a severe lfy allele.

• Publisher: National Academy of Sciences of the United States of America,National Acad Sciences,National Academy of Sciences,The National Academy of Sciences
• Subject: ADN / Amino Acid Sequence / AMINO ACID SEQUENCES / Angiosperms / APICAL MERISTEMS / Arabidopsis - genetics / ARABIDOPSIS THALIANA / ARN MENSAJERO / ARN MESSAGER / Biological Sciences / Botany / BOURGEON / Bracts / BUDS / CHEMICAL COMPOSITION / COMPLEMENTARY DNA / COMPLEMENTATION / COMPOSICION QUIMICA / COMPOSITION CHIMIQUE / DNA / EXPRESION GENICA / EXPRESSION DES GENES / FACTEUR DE TRANSCRIPTION / FACTORES DE TRANSCRIPCION / FLORACION / FLORAISON / FLORAL MERISTEMS / FLOWERING / flowering date / Flowers / Flowers & plants / GEN HOMEOTICO / GENBANK/U76757 / GENE EXPRESSION / Gene Expression Regulation, Plant / GENE HOMEOTIQUE / Genes / Genes, Plant / genetic complementation / Genetic vectors / GENETICA / GENETICS / GENETIQUE / HOMEOTIC GENES / Leaves / LONG SHOOT TERMINAL BUDS / MERISTEMAS / MERISTEMAS APICALES / MERISTEME / MERISTEME APICAL / MERISTEMS / MESSENGER RNA / MOLECULAR SEQUENCE DATA / MUTACION / MUTATION / NLY GENE / NUCLEOTIDE SEQUENCE / nucleotide sequences / Phenotypes / Phylogeny / PINUS RADIATA / Plant Proteins - genetics / Plants / Plants, Genetically Modified / SECUENCIA NUCLEOTIDICA / Sequence Alignment / SEQUENCE NUCLEOTIDIQUE / SHOOT MERISTEMS / STEMS / TALLO / TEMPS / TIEMPO / TIGE / TIME / TRANSCRIPTION FACTORS / YEMA (PLANTA)