EurekaMag.com logo
+ Site Statistics
References:
53,623,987
Abstracts:
29,492,080
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Evolutionary pattern of the regulatory network for flower development Insights gained from a comparison of two Arabidopsis species



Evolutionary pattern of the regulatory network for flower development Insights gained from a comparison of two Arabidopsis species



Journal of Systematics and Evolution 49(6): 528-538



Previous studies on Arabidopsis thaliana and other model plants have demonstrated that the development of a flower is controlled by a regulatory network composed of genes and the interactions among them. Studies on the evolution of this network will therefore help understand the genetic basis that underlies flower evolution. In this study, by reviewing the most recent literatures, we added 31 genes into the previously proposed regulatory network for flower development and thus the number of genes reached 6. We then compared the composition, structure and evolutionary rate of these genes between A. thaliana and one of its allies, A. lyrata. We found that two genes (i.e., FLC and MAF2) show 1: 2 and 2: 2 relationships between the two species, suggesting that they have experienced independent, post-speciation duplications. Of the remaining 58 genes, 35 (6.3%) have diverged in exon-intron structure and, consequently, code for proteins with different sequence features and functions. Molecular evolutionary analyses further revealed that while most floral genes have evolved under strong purifying selection, some have evolved under relaxed or changed constraints, as evidenced from the elevation of nonsynonymous substitution rates and/or the presence of positively selected sites. Taken together, these results suggest that the regulatory network for flower development has evolved rather rapidly, with changes in the composition, structure and functional constraint of genes, as well as the interactions among them, being the most important contributors.

(PDF emailed within 0-6 h: $19.90)

Accession: 036147490

Download citation: RISBibTeXText

DOI: 10.1111/j.1759-6831.2011.00158.x



Related references

Network component analysis provides quantitative insights on an Arabidopsis transcription factor-gene regulatory network. Bmc Systems Biology 7(): 126-126, 2014

A gene regulatory network model for cell-fate determination during Arabidopsis thaliana flower development that is robust and recovers experimental gene expression profiles. Plant Cell 16(11): 2923-2939, 2004

Dynamics of the genetic regulatory network for Arabidopsis thaliana flower morphogenesis. Journal of Theoretical Biology 193(2): 307-319, 1998

The Arabidopsis thaliana flower organ specification gene regulatory network determines a robust differentiation process. Journal of Theoretical Biology 264(3): 971-983, 2010

The evolutionary origin of the vertebrate neural crest and its developmental gene regulatory network--insights from amphioxus. Zoology 113(1): 1-9, 2010

The gene regulatory network for root epidermal cell-type pattern formation in Arabidopsis. Journal of Experimental Botany 60(5): 1515-1521, 2009

Expression pattern of CUC2 during flower development in Arabidopsis. Plant & Cell Physiology 39(SUPPL ): S62, 1998

Evolutionary conservation of microRNA regulatory programs in plant flower development. Developmental Biology 380(2): 133-144, 2013

Genetic control of pattern formation during flower development in Arabidopsis. Symposia of the Society for Experimental Biology 45: 89-115, 1991

Network function shapes network structure: the case of the Arabidopsis flower organ specification genetic network. Molecular Biosystems 9(7): 1726-1735, 2014

Gene-regulatory networks controlling inflorescence and flower development in Arabidopsis thaliana. Biochimica et Biophysica Acta (): -, 2016

Genetic and molecular mechanisms of pattern formation in Arabidopsis flower development. Journal of Plant Research 111(1102): 233-242, June, 1998

Comparison of evolutionary algorithms in gene regulatory network model inference. Bmc Bioinformatics 11(): 59-59, 2010

A model comparison study of the flowering time regulatory network in Arabidopsis. Bmc Systems Biology 8(): 15-15, 2014

Transcriptional repression of target genes by LEUNIG and SEUSS, two interacting regulatory proteins for Arabidopsis flower development. Proceedings of the National Academy of Sciences of the United States of America 101(31): 11494-9, 2004