Advanced search
1 file | 1.26 MB

Petunia Ap2-like genes and their role in flower and seed development

(2001) PLANT CELL. 13(2). p.229-244
Author
Organization
Abstract
We have isolated three Apetala2 (Ap2)-like genes from petunia and studied their expression patterns by in situ hybridization, PhAp2A has a high sequence similarity to the A function gene Ap2 from Arabidopsis and a similar expression pattern during flower development, suggesting that they are cognate orthologs, PhAp2B and PhAp2C encode for AP2-like proteins that belong to a different subgroup of the AP2 family of transcription factors and exhibit divergent, nearly complementary expression patterns during flower development compared with PhAp2A, In contrast, all three PhAp2 genes are strongly expressed in endosperm. The phenotype of the petunia A-type mutant blind cannot be attributed to mutations in the petunia Ap2 homologs identified in this study, and reverse genetics strategies applied to identify phap2a mutants indicate that PhAp2A might not be essential for normal perianth development in petunia. Nevertheless, we show that PhAp2A is capable of restoring the homeotic transformations observed in flowers and seed of the ap2-1 mutant of Arabidopsis. Although the interspecific complementation proves that PhAp2A encodes a genuine Ap2 ortholog from petunia, additional factors may be involved in the control of perianth identity in this species.
Keywords
ARABIDOPSIS-THALIANA, NONAUTONOMOUS TRANSPOSABLE ELEMENT, ECTOPIC EXPRESSION, APETALA2-LIKE GENE, PLANTS, MAIZE, DNA-BINDING PROTEINS, FLORAL ORGAN IDENTITY, MUTANT, AP2 DOMAIN

Downloads

    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 1.26 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Maes, Tamara, Nancy Van de Steene, Johannes Zethof, Mansour Karimi, Mariëlla D’Hauw, Gwenny Mares, Marc Van Montagu, and Tom Gerats. 2001. “Petunia Ap2-like Genes and Their Role in Flower and Seed Development.” Plant Cell 13 (2): 229–244.
APA
Maes, Tamara, Van de Steene, N., Zethof, J., Karimi, M., D’Hauw, M., Mares, G., Van Montagu, M., et al. (2001). Petunia Ap2-like genes and their role in flower and seed development. PLANT CELL, 13(2), 229–244.
Vancouver
1.
Maes T, Van de Steene N, Zethof J, Karimi M, D’Hauw M, Mares G, et al. Petunia Ap2-like genes and their role in flower and seed development. PLANT CELL. 2001;13(2):229–44.
MLA
Maes, Tamara, Nancy Van de Steene, Johannes Zethof, et al. “Petunia Ap2-like Genes and Their Role in Flower and Seed Development.” PLANT CELL 13.2 (2001): 229–244. Print.
@article{138674,
  abstract     = {We have isolated three Apetala2 (Ap2)-like genes from petunia and studied their expression patterns by in situ hybridization, PhAp2A has a high sequence similarity to the A function gene Ap2 from Arabidopsis and a similar expression pattern during flower development, suggesting that they are cognate orthologs, PhAp2B and PhAp2C encode for AP2-like proteins that belong to a different subgroup of the AP2 family of transcription factors and exhibit divergent, nearly complementary expression patterns during flower development compared with PhAp2A, In contrast, all three PhAp2 genes are strongly expressed in endosperm. The phenotype of the petunia A-type mutant blind cannot be attributed to mutations in the petunia Ap2 homologs identified in this study, and reverse genetics strategies applied to identify phap2a mutants indicate that PhAp2A might not be essential for normal perianth development in petunia. Nevertheless, we show that PhAp2A is capable of restoring the homeotic transformations observed in flowers and seed of the ap2-1 mutant of Arabidopsis. Although the interspecific complementation proves that PhAp2A encodes a genuine Ap2 ortholog from petunia, additional factors may be involved in the control of perianth identity in this species.},
  author       = {Maes, Tamara and Van de Steene, Nancy and Zethof, Johannes and Karimi, Mansour and D'Hauw, Mari{\"e}lla and Mares, Gwenny and Van Montagu, Marc and Gerats, Tom},
  issn         = {1040-4651},
  journal      = {PLANT CELL},
  keyword      = {ARABIDOPSIS-THALIANA,NONAUTONOMOUS TRANSPOSABLE ELEMENT,ECTOPIC EXPRESSION,APETALA2-LIKE GENE,PLANTS,MAIZE,DNA-BINDING PROTEINS,FLORAL ORGAN IDENTITY,MUTANT,AP2 DOMAIN},
  language     = {eng},
  number       = {2},
  pages        = {229--244},
  title        = {Petunia Ap2-like genes and their role in flower and seed development},
  url          = {http://dx.doi.org/10.2307/3871273},
  volume       = {13},
  year         = {2001},
}

Altmetric
View in Altmetric
Web of Science
Times cited: