Co-ordination of Flower Development Through Epigenetic Regulation in Two Model Species: Rice and Arabidopsis.
Angiosperms produce flowers for reproduction. Flower development is a multistep developmental process, beginning with the initiation of the floral meristems, followed by floral meristem identity specification and maintenance, organ primordia initiation, floral organ identity specification, floral stem cell termination and finally floral organ maturation. During flower development, each of a large number of genes is expressed in a spatiotemporally regulated manner. Underlying these molecular and phenotypic events are various genetic and epigenetic pathways, consisting of diverse transcription factors, chromatin-remodeling factors and signaling molecules. Over the past 30 years, genetic, biochemical and genomic assays have revealed the underlying genetic frameworks that control flower development. Here, we will review the transcriptional regulation of flower development in two model species: Arabidopsis thaliana and rice (Oryza sativa). We focus on epigenetic regulation that functions to co-ordinate transcription pathways in flower development.
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore These authors contributed equally to this work.
Siyi
S
Guo
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore These authors contributed equally to this work.
Bo
B
Sun
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore Department of Biological Sciences, National University of Singapore, 117604, Republic of Singapore.
Liang-Sheng
LS
Looi
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore.
Yifeng
Y
Xu
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore Department of Biological Sciences, National University of Singapore, 117604, Republic of Singapore.
Eng-Seng
ES
Gan
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore Department of Biological Sciences, National University of Singapore, 117604, Republic of Singapore.
Jiangbo
J
Huang
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Republic of Singapore Department of Biological Sciences, National University of Singapore, 117604, Republic of Singapore itot@tll.org.sg.
Toshiro
T
Ito
D017360:Arabidopsis / Q000235:genetics*; D042002:Chromatin Assembly and Disassembly / Q000235:genetics*; D044127:Epigenesis, Genetic; D035264:Flowers / Q000235:genetics* / Q000254:growth & development*; D018506:Gene Expression Regulation, Plant; D012275:Oryza / Q000235:genetics*
Arabidopsis; Epigenetic regulation; Floral homeotic protein; Flower development; Organ identity control; Rice