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Title: Evolutionary Divergence of Duplicated Hsf Genes in Populus

Abstract

Heat shock transcription factors (Hsfs), which function as the activator of heat shock proteins (Hsps), play multiple roles in response to environmental stress and the development of plants. The Hsf family had experienced gene expansion via whole-genome duplication from a single cell algae to higher plants. Yet, how the Hsf gene family went through evolutionary divergence after genome duplication is unknown. As a model wood species, Populus trichocarpa is widely distributed in North America with various ecological and climatic environments. In this study, we used P. trichocarpa as materials and identified the expression divergence of the PtHsf gene family in developmental processes, such as dormant bud formation and opening, catkins development, and in response to environments. Through the co-expression network, we further discovered the divergent co-expressed genes that related to the functional divergence of PtHsf. Then, we studied the alternative splicing events, single nucleotide polymorphism distribution and tertiary structures of members of the PtHsf gene family. In addition to expression divergence, we uncovered the evolutionary divergence in the protein level which may be important to new function formations and for survival in changing environments. This study comprehensively assessed the evolutionary divergence of a member of the PtHsf gene family aftermore » genome duplication, paving the way for further gene function analysis and genetic engineering.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]
  1. Fujian Agriculture and Forestry Univ., Fuzhou (China)
  2. Chinese Academy of Forestry, Beijing (China)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1513366
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Cells
Additional Journal Information:
Journal Volume: 8; Journal Issue: 5; Journal ID: ISSN 2073-4409
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Populus; heat shock transcription factors; gene duplication; gene expression; alternative splicing; single nucleotide polymorphism; protein structure; co-expression network

Citation Formats

Liu, Bobin, Hu, Jianjun, and Zhang, Jin. Evolutionary Divergence of Duplicated Hsf Genes in Populus. United States: N. p., 2019. Web. doi:10.3390/cells8050438.
Liu, Bobin, Hu, Jianjun, & Zhang, Jin. Evolutionary Divergence of Duplicated Hsf Genes in Populus. United States. https://doi.org/10.3390/cells8050438
Liu, Bobin, Hu, Jianjun, and Zhang, Jin. Fri . "Evolutionary Divergence of Duplicated Hsf Genes in Populus". United States. https://doi.org/10.3390/cells8050438. https://www.osti.gov/servlets/purl/1513366.
@article{osti_1513366,
title = {Evolutionary Divergence of Duplicated Hsf Genes in Populus},
author = {Liu, Bobin and Hu, Jianjun and Zhang, Jin},
abstractNote = {Heat shock transcription factors (Hsfs), which function as the activator of heat shock proteins (Hsps), play multiple roles in response to environmental stress and the development of plants. The Hsf family had experienced gene expansion via whole-genome duplication from a single cell algae to higher plants. Yet, how the Hsf gene family went through evolutionary divergence after genome duplication is unknown. As a model wood species, Populus trichocarpa is widely distributed in North America with various ecological and climatic environments. In this study, we used P. trichocarpa as materials and identified the expression divergence of the PtHsf gene family in developmental processes, such as dormant bud formation and opening, catkins development, and in response to environments. Through the co-expression network, we further discovered the divergent co-expressed genes that related to the functional divergence of PtHsf. Then, we studied the alternative splicing events, single nucleotide polymorphism distribution and tertiary structures of members of the PtHsf gene family. In addition to expression divergence, we uncovered the evolutionary divergence in the protein level which may be important to new function formations and for survival in changing environments. This study comprehensively assessed the evolutionary divergence of a member of the PtHsf gene family after genome duplication, paving the way for further gene function analysis and genetic engineering.},
doi = {10.3390/cells8050438},
journal = {Cells},
number = 5,
volume = 8,
place = {United States},
year = {Fri May 10 00:00:00 EDT 2019},
month = {Fri May 10 00:00:00 EDT 2019}
}

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Cited by: 12 works
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Figures / Tables:

Figure 1 Figure 1: The $Hsf$ gene family underwent gene expansion in evolution history. (A) The gene number of $Hsf$ genes in different plants. Note that the $Hsf$ gene number was multiplied from algae to land plants. Ostreococcus lucimarinus (Osluc), Volvox carteri (Vocar), Marchantia polymorpha (Mapol), Physcomitrella patens (Phpat), Selaginella moellendorffi (Semoe),more » Amborella trichopoda (Amtri), Arabidopsis thaliana (Artha), Populus trichocarpa (Potri), Oryza sativa (Orsat), Zea mays (Zemay), Gnetum montanum (Gnmon), Taxus baccata (Tabac), Ginkgo biloba (Gibil) and Picea abies (Piabi). (B) Evolutionary relationship of the $Hsfs$ from Osluc, Vocar, Mapol, Phpat, Semoe, Amtri, Artha and Potri. Note that every subfamily $Hsf$ genes in Arabidopsis and poplar were expanded from Amborella trichopoda, the oldest angiosperm. (C) Syntenic relationships of duplicated genes in the $PtHsf$ family.« less

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Works referencing / citing this record:

Genome-Wide Identification, Classification, and Expression Analysis of the Hsf Gene Family in Carnation (Dianthus caryophyllus)
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A Stress-Associated Protein, PtSAP13, From Populus trichocarpa Provides Tolerance to Salt Stress
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