Molecular analysis of NOZZLE , a gene involved in pattern formation and early sporogenesis during sex organ development in Arabidopsis thaliana

• DOI: 10.1073/pnas.96.20.11664
• Publication Date: 2002-07-26T14:38:21Z
• Authors: Ursula Schiefthaler; Sureshkumar Balas...; Patrick Sieber; David Chevalier; Ellen Wisman; Kay Schneitz
• Keywords: Sporogenesis; Sexual reproduction; Tapetum

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