Genetic analyses of signalling in flower development using Arabidopsis |
| |
Authors: | Kiyotaka Okada Yoshiro Shimura |
| |
Affiliation: | (1) Division 1 of Gene Expression and Regulation, National Institute for Basic Biology, 444 Okazaki, Japan;(2) Department of Biophysics, Faculty of Science, Kyoto University, 606 Kyoto, Japan |
| |
Abstract: | Flower development can be divided into four major steps: phase transition from vegetative to reproductive growth, formation of inflorescence meristem, formation and identity determination of floral organs, and growth and maturation of floral organs. Intercellular and intracellular signalling mechanisms must have important roles in each step of flower development, because it requires cell division, cell growth, and cell differentiation in a concerted fashion. Molecular genetic analysis of the process has started by isolation of a series of mutants with unusual flowering time, with aberrant structure in inflorescence and in flowers, and with no self-fertilization. At present more than 60 genes are identified from Arabidopsis thaliana and some of them have cloned. Although the information is still limited, several types of signalling systems are revealed. In this review, we summarize the present genetic aspects of the signalling network underlying the processes of flower development. |
| |
Keywords: | Arabidopsis thaliana floral development floral meristem flower mutants floral organ development inflorescence meristem signalling |
本文献已被 SpringerLink 等数据库收录! |
|