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B3 DNA结合超家族的进化：对REM家族基因多样化的新见解

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

作者信息

Romanel Elisson A C, Schrago Carlos G, Couñago Rafael M, Russo Claudia A M, Alves-Ferreira Márcio

机构信息

Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.

出版信息

PLoS One. 2009 Jun 8;4(6):e5791. doi: 10.1371/journal.pone.0005791.

DOI:10.1371/journal.pone.0005791
PMID:19503786
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2688026/
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.

摘要

背景

B3 DNA结合结构域包括五个家族：生长素响应因子（ARF）、脱落酸不敏感3（ABI3）、高糖诱导高水平表达（HSI）、与ABI3/VP1相关（RAV）和生殖分生组织（REM）。被子植物双子叶植物拟南芥和毛果杨、单子叶植物水稻、苔藓植物小立碗藓、绿藻莱茵衣藻和团藻以及红藻嗜热栖热放线菌完整基因组的公布，为研究这个超家族的进化提供了绝佳机会。

方法

为了更好地理解植物中B3结构域的起源和多样化，我们将比较系统发育分析与外显子/内含子结构及复制事件相结合。此外，我们研究了每个家族起源和进化过程中B3结构域的保守性和差异性。

结论

我们的数据表明，含B3的基因经历了广泛的复制事件，并且REM家族B3结构域具有高度分化的DNA结合能力。我们的结果还表明，B3基因家族的创始成员可能与莱茵衣藻和团藻中发现的ABI3/HSI基因相似。在B3家族中，ABI3、HSI、RAV和ARF在结构上最为保守，而REM家族经历了快速分化。根据它们在植物发育中的功能和进化作用对这些结果进行了讨论。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/fcbba18dd486/pone.0005791.g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/ce538e03b046/pone.0005791.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/ee7bbb0959f5/pone.0005791.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/655431f6a937/pone.0005791.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/c0f28a5820f6/pone.0005791.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/a7c0e426d756/pone.0005791.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/b148281a3f5c/pone.0005791.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/e7e927f17301/pone.0005791.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/49e442c10c67/pone.0005791.g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/fcbba18dd486/pone.0005791.g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/ce538e03b046/pone.0005791.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/ee7bbb0959f5/pone.0005791.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/655431f6a937/pone.0005791.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/c0f28a5820f6/pone.0005791.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/a7c0e426d756/pone.0005791.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/b148281a3f5c/pone.0005791.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/e7e927f17301/pone.0005791.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/49e442c10c67/pone.0005791.g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a62/2688026/fcbba18dd486/pone.0005791.g009.jpg

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