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Comparative genomic analysis of the WRKY III gene family in populus, grape, arabidopsis and rice

Overview of attention for article published in Biology Direct, September 2015
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Title
Comparative genomic analysis of the WRKY III gene family in populus, grape, arabidopsis and rice
Published in
Biology Direct, September 2015
DOI 10.1186/s13062-015-0076-3
Pubmed ID
Authors

Yiyi Wang, Lin Feng, Yuxin Zhu, Yuan Li, Hanwei Yan, Yan Xiang

Abstract

WRKY III genes have significant functions in regulating plant development and resistance. In plant, WRKY gene family has been studied in many species, however, there still lack a comprehensive analysis of WRKY III genes in the woody plant species poplar, three representative lineages of flowering plant species are incorporated in most analyses: Arabidopsis (a model plant for annual herbaceous dicots), grape (one model plant for perennial dicots) and Oryza sativa (a model plant for monocots). In this study, we identified 10, 6, 13 and 28 WRKY III genes in the genomes of Populus trichocarpa, grape (Vitis vinifera), Arabidopsis thaliana and rice (Oryza sativa), respectively. Phylogenetic analysis revealed that the WRKY III proteins could be divided into four clades. By microsynteny analysis, we found that the duplicated regions were more conserved between poplar and grape than Arabidopsis or rice. We dated their duplications by Ks analysis of Populus WRKY III genes and demonstrated that all the blocks were formed after the divergence of monocots and dicots. Strong purifying selection has played a key role in the maintenance of WRKY III genes in Populus. Tissue expression analysis of the WRKY III genes in Populus revealed that five were most highly expressed in the xylem. We also performed quantitative real-time reverse transcription PCR analysis of WRKY III genes in Populus treated with salicylic acid, abscisic acid and polyethylene glycol to explore their stress-related expression patterns. This study highlighted the duplication and diversification of the WRKY III gene family in Populus and provided a comprehensive analysis of this gene family in the Populus genome. Our results indicated that the majority of WRKY III genes of Populus was expanded by large-scale gene duplication. The expression pattern of PtrWRKYIII gene identified that these genes play important roles in the xylem during poplar growth and development, and may play crucial role in defense to drought stress. Our results presented here may aid in the selection of appropriate candidate genes for further characterization of their biological functions in poplar. This article was reviewed by Prof Dandekar and Dr Andrade-Navarro.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 48 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
France 1 2%
Unknown 47 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 11 23%
Student > Master 8 17%
Researcher 7 15%
Student > Bachelor 5 10%
Professor > Associate Professor 3 6%
Other 3 6%
Unknown 11 23%
Readers by discipline Count As %
Agricultural and Biological Sciences 26 54%
Biochemistry, Genetics and Molecular Biology 8 17%
Computer Science 1 2%
Psychology 1 2%
Unknown 12 25%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 10 September 2015.
All research outputs
#20,291,881
of 22,828,180 outputs
Outputs from Biology Direct
#450
of 487 outputs
Outputs of similar age
#224,642
of 267,498 outputs
Outputs of similar age from Biology Direct
#17
of 19 outputs
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