Evolution of the B3 DNA binding superfamily : New insights into REM family gene diversification

Romanel, Elisson A. C., Schrago, Carlos G., Counago, Rafael M., Russo, Claudia A. M. and Alves-Ferreira, Márcio (2009) Evolution of the B3 DNA binding superfamily : New insights into REM family gene diversification. Plos One, 4 6 Article # e5791: . doi:10.1371/journal.pone.0005791

Author Romanel, Elisson A. C.
Schrago, Carlos G.
Counago, Rafael M.
Russo, Claudia A. M.
Alves-Ferreira, Márcio
Title Evolution of the B3 DNA binding superfamily : New insights into REM family gene diversification
Journal name Plos One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2009-06
Sub-type Article (original research)
DOI 10.1371/journal.pone.0005791
Open Access Status DOI
Volume 4
Issue 6 Article # e5791
Total pages 18
Place of publication San Francisco, CA, United Sates
Publisher Public Library of Science
Language eng
Formatted abstract
Background: The B3 DNA binding domain includes five families: auxin response factor (ARF), abscisic acid-insensitive3 (ABI3), high level expression of sugar inducible (HSI), related to ABI3/VP1 (RAV) and reproductive meristem (REM). The release of the complete genomes of the angiosperm eudicots Arabidopsis thaliana and Populus trichocarpa, the monocot Orysa sativa, the bryophyte Physcomitrella patens,the green algae Chlamydomonas reinhardtii and Volvox carteri and the red algae Cyanidioschyzon melorae provided an exceptional opportunity to study the evolution of this superfamily. Methodology: In order to better understand the origin and the diversification of B3 domains in plants, we combined comparative phylogenetic analysis with exon/intron structure and duplication events. In addition, we investigated the conservation and divergence of the B3 domain during the origin and evolution of each family. Conclusions: Our data indicate that showed that the B3 containing genes have undergone extensive duplication events, and that the REM family B3 domain has a highly diverged DNA binding. Our results also indicate that the founding member of the B3 gene family is likely to be similar to the ABI3/HSI genes found in C. reinhardtii and V. carteri. Among the B3 families, ABI3, HSI, RAV and ARF are most structurally conserved, whereas the REM family has experienced a rapid divergence. These results are discussed in light of their functional and evolutionary roles in plant development. © 2009 Romanel et al.
Keyword Gene Duplication
Multigene Family
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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