NZZ Genomic sequences

Minimum number of tobacco NZZ genes: 2

Count of tobacco NZZ sequences: 2

Pfam accession: NOZZLE

SHOULD possess NOZZLE domain

Sexual reproduction is a salient aspect of plants, and elaborate structures, such as the flowers of angiosperms, have evolved that aid in this process. Within the flower the corresponding sex organs, the anther and the ovule, form the male and female sporangia, the pollen sac and the nucellus, respectively. However, despite their central role for sexual reproduction little is known about the mechanisms that control the establishment of these important structures. Here we present the identification and molecular characterization of the NOZZLE (NZZ) gene in the flowering plant Arabidopsis thaliana. In several nzz mutants the nucellus and the pollen sac fail to form. It indicates that NZZ plays an early and central role in the development of both types of sporangia and that the mechanisms controlling these processes share a crucial factor. In addition, NZZ may have an early function during male and female sporogenesis as well. The evolutionary aspects of these findings are discussed. NZZ encodes a putative protein of unknown function. However, based on sequence analysis we speculate that NZZ is a nuclear protein and possibly a transcription factor.


Schiefthaler, U; Balasubramanian, S; Sieber, P; Chevalier, D; Wisman, E; Schneitz, K. Molecular analysis of NOZZLE, a gene involved in pattern formation and early sporogenesis during sex organ development in Arabidopsis thaliana. Proc. Natl. Acad. Sci. U.S.A. 1999. 96(20):11664-9 PMID: 10500234

Wilson, ZA; Yang, C. Plant gametogenesis: conservation and contrasts in development. Reproduction 2004. 128(5):483-92 PMID: 15509694

Number of contigs: 2

Number of singlets: 0

Number of N terminal – 2

Total minimum number – 2

Search sequences and info

Transcription factor sequences
NZZ_1 [comment=5 prime end] ET049220
NZZ_4 [comment=5 prime end] ET049645

Tobacco published genes related to transcription factor family NZZ
Family Genbank ID Name
Authors of this site:

Paul J Rushton
Marta T. Bokowiec
Xianfeng (Jeff) Chen
Thomas (Tom) W Laudeman
Jennifer F. Brannock
Michael P. Timko