Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

The reference genome and abiotic stress responses of the model perennial grass Brachypodium sylvaticum

Journal Article · · G3

Abstract

Perennial grasses are important forage crops and emerging biomass crops and have the potential to be more sustainable grain crops. However, most perennial grass crops are difficult experimental subjects due to their large size, difficult genetics, and/or their recalcitrance to transformation. Thus, a tractable model perennial grass could be used to rapidly make discoveries that can be translated to perennial grass crops. Brachypodium sylvaticum has the potential to serve as such a model because of its small size, rapid generation time, simple genetics, and transformability. Here, we provide a high-quality genome assembly and annotation for B. sylvaticum, an essential resource for a modern model system. In addition, we conducted transcriptomic studies under 4 abiotic stresses (water, heat, salt, and freezing). Our results indicate that crowns are more responsive to freezing than leaves which may help them overwinter. We observed extensive transcriptional responses with varying temporal dynamics to all abiotic stresses, including classic heat-responsive genes. These results can be used to form testable hypotheses about how perennial grasses respond to these stresses. Taken together, these results will allow B. sylvaticum to serve as a truly tractable perennial model system.

Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0001526; SC0008797; AC02-05CH11231
OSTI ID:
2267598
Alternate ID(s):
OSTI ID: 2439381
OSTI ID: 2229004
Journal Information:
G3, Journal Name: G3 Journal Issue: 1 Vol. 14; ISSN 2160-1836
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English

References (89)

The Genus Brachypodium as a Model for Perenniality and Polyploidy book January 2015
Brachypodium distachyon book September 2014
AP2/EREBP transcription factors are part of gene regulatory networks and integrate metabolic, hormonal and environmental signals in stress acclimation and retrograde signalling journal April 2010
A nuclear-localized HSP70 confers thermoprotective activity and drought-stress tolerance on plants journal November 2008
A novel cold-inducible gene from Pak-choi (Brassica campestris ssp. chinensis), BcWRKY46, enhances the cold, salt and dehydration stress tolerance in transgenic tobacco journal September 2011
Salt tolerance of two perennial grass Brachypodium sylvaticum accessions journal January 2018
Grass Genomic Synteny Illuminates Plant Genome Function and Evolution journal November 2008
Root distribution and soil moisture retrieval in perennial and annual energy crops in Northern Italy journal August 2009
Will energy crop yields meet expectations? journal June 2014
Characterization of fine root system and potential contribution to soil organic carbon of six perennial bioenergy crops journal December 2015
Life History Variation as a Model for Understanding Trade-Offs in Plant–Environment Interactions journal February 2020
Response of giant reed (Arundo donax L.) to nitrogen fertilization and soil water availability in semi-arid Mediterranean environment journal October 2014
Differences between wheat genotypes in damage from freezing temperatures during reproductive growth journal March 2016
Heat tolerance in plants: An overview journal December 2007
Overexpression of MtWRKY76 increases both salt and drought tolerance in Medicago truncatula journal March 2016
Global mortality from outdoor fine particle pollution generated by fossil fuel combustion: Results from GEOS-Chem journal April 2021
Effects of soil water content and nitrogen supply on the productivity of Miscanthus×giganteus Greef et Deu. in a Mediterranean environment journal January 2007
CsWRKY46 , a WRKY transcription factor from cucumber, confers cold resistance in transgenic-plant by regulating a set of cold-stress responsive genes in an ABA-dependent manner journal November 2016
Class VIIIb APETALA2 Ethylene Response Factors in Plant Development journal February 2018
Brachypodium: 20 years as a grass biology model system; the way forward? journal October 2022
Molecular characterization of Ph1 as a major chromosome pairing locus in polyploid wheat journal February 2006
Genome sequencing and analysis of the model grass Brachypodium distachyon journal February 2010
A phylogenetically based transcriptome age index mirrors ontogenetic divergence patterns journal December 2010
Homeostatic response to hypoxia is regulated by the N-end rule pathway in plants journal October 2011
Oxygen sensing in plants is mediated by an N-end rule pathway for protein destabilization journal October 2011
A transcriptomic hourglass in plant embryogenesis journal September 2012
Nonhybrid, finished microbial genome assemblies from long-read SMRT sequencing data journal May 2013
HISAT: a fast spliced aligner with low memory requirements journal March 2015
Phased diploid genome assembly with single-molecule real-time sequencing journal October 2016
The genomic landscape of molecular responses to natural drought stress in Panicum hallii journal December 2018
Gradual polyploid genome evolution revealed by pan-genomic analysis of Brachypodium hybridum and its diploid progenitors journal July 2020
Genomic variation in 3,010 diverse accessions of Asian cultivated rice journal April 2018
Plant organ evolution revealed by phylotranscriptomics in Arabidopsis thaliana journal August 2017
Correlation-based network analysis combined with machine learning techniques highlight the role of the GABA shunt in Brachypodium sylvaticum freezing tolerance journal March 2020
Hsp101 is necessary for heat tolerance but dispensable for development and germination in the absence of stress journal July 2001
The barley stem rust-resistance gene Rpg1 is a novel disease-resistance gene with homology to receptor kinases journal June 2002
RepeatModeler2 for automated genomic discovery of transposable element families journal April 2020
Fast and accurate short read alignment with Burrows-Wheeler transform journal May 2009
A statistical framework for SNP calling, mutation discovery, association mapping and population genetical parameter estimation from sequencing data journal September 2011
featureCounts: an efficient general purpose program for assigning sequence reads to genomic features journal November 2013
FinisherSC: a repeat-aware tool for upgrading de novo assembly using long reads journal June 2015
Evidence for Active Maintenance of Phylotranscriptomic Hourglass Patterns in Animal and Plant Embryogenesis journal January 2015
An Arabidopsis Transcriptional Regulatory Map Reveals Distinct Functional and Evolutionary Features of Novel Transcription Factors journal March 2015
Transcriptome Analysis of High-Temperature Stress in Developing Barley Caryopses: Early Stress Responses and Effects on Storage Compound Biosynthesis journal January 2011
JGI Plant Gene Atlas: an updateable transcriptome resource to improve functional gene descriptions across the plant kingdom journal August 2023
Improving the Arabidopsis genome annotation using maximal transcript alignment assemblies journal October 2003
MCScanX: a toolkit for detection and evolutionary analysis of gene synteny and collinearity journal January 2012
Phytozome: a comparative platform for green plant genomics journal November 2011
PlantTFDB 3.0: a portal for the functional and evolutionary study of plant transcription factors journal October 2013
PlantTFDB 4.0: toward a central hub for transcription factors and regulatory interactions in plants journal October 2016
agriGO v2.0: a GO analysis toolkit for the agricultural community, 2017 update journal May 2017
PlantRegMap: charting functional regulatory maps in plants journal November 2019
ICE1: a regulator of cold-induced transcriptome and freezing tolerance in Arabidopsis journal April 2003
Ab initio Gene Finding in Drosophila Genomic DNA journal April 2000
Computational Inference of Homologous Gene Structures in the Human Genome journal May 2001
BLAT---The BLAST-Like Alignment Tool journal March 2002
Brachypodium distachyon . A New Model System for Functional Genomics in Grasses journal December 2001
The Small, Methionine-Rich Chloroplast Heat-Shock Protein Protects Photosystem II Electron Transport during Heat Stress journal January 1998
A Glucosinolate Mutant of Arabidopsis Is Thermosensitive and Defective in Cytosolic Hsp90 Expression after Heat Stress journal July 2000
LTR_retriever: A Highly Accurate and Sensitive Program for Identification of Long Terminal Repeat Retrotransposons journal December 2017
Maize HSP101 Plays Important Roles in Both Induced and Basal Thermotolerance and Primary Root Growth journal July 2002
Soybean WRKY-type transcription factor genes, GmWRKY13, GmWRKY21, and GmWRKY54, confer differential tolerance to abiotic stresses in transgenic Arabidopsis plants: Roles of GmWRKY genes in abiotic stress tolerance journal March 2008
Transcriptome of Cenostigma pyramidale roots, a woody legume, under different salt stress times journal May 2021
Transcription factor WRKY46 regulates osmotic stress responses and stomatal movement independently in Arabidopsis journal June 2014
Injury within the crown of winter wheat seedlings after freezing and icing stress journal March 1985
Automated generation of heuristics for biological sequence comparison journal February 2005
Transcriptional profiling of Arabidopsis heat shock proteins and transcription factors reveals extensive overlap between heat and non-heat stress response pathways journal January 2007
GBSX: a toolkit for experimental design and demultiplexing genotyping by sequencing experiments journal March 2015
Genome sequence of the model rice variety KitaakeX journal November 2019
Drought-responsive WRKY transcription factor genes TaWRKY1 and TaWRKY33 from wheat confer drought and/or heat resistance in Arabidopsis journal May 2016
Genome-wide transcriptional adaptation to salt stress in Populus journal August 2019
Moderated estimation of fold change and dispersion for RNA-seq data with DESeq2 journal December 2014
Next-generation genome annotation: we still struggle to get it right journal May 2019
OrthoFinder: phylogenetic orthology inference for comparative genomics journal November 2019
LTR_FINDER_parallel: parallelization of LTR_FINDER enabling rapid identification of long terminal repeat retrotransposons journal December 2019
Efficient and Accurate Construction of Genetic Linkage Maps from the Minimum Spanning Tree of a Graph journal October 2008
Brachypodium sylvaticum, a Model for Perennial Grasses: Transformation and Inbred Line Development journal September 2013
Identification of Arabidopsis Candidate Genes in Response to Biotic and Abiotic Stresses Using Comparative Microarrays journal May 2015
Temporal dynamics of gene expression in heat-stressed Caenorhabditis elegans journal December 2017
Full genome gene expression analysis of the heat stress response in Drosophila melanogaster journal January 2005
Early Drought-Responsive Genes Are Variable and Relevant to Drought Tolerance journal May 2020
Diploid/Polyploid Syntenic Shuttle Mapping and Haplotype-Specific Chromosome Walking Toward a Rust Resistance Gene ( Bru1 ) in Highly Polyploid Sugarcane (2 n ∼ 12 x ∼ 115) journal August 2008
WRKY Transcription Factors: Molecular Regulation and Stress Responses in Plants journal June 2016
Heat Stress Regulates the Expression of Genes at Transcriptional and Post-Transcriptional Levels, Revealed by RNA-seq in Brachypodium distachyon journal January 2017
The Overexpression of a Transcription Factor Gene VbWRKY32 Enhances the Cold Tolerance in Verbena bonariensis journal January 2020
Maize WRKY Transcription Factor ZmWRKY106 Confers Drought and Heat Tolerance in Transgenic Plants journal October 2018
Retrotransposons in Plant Genomes: Structure, Identification, and Classification through Bioinformatics and Machine Learning journal August 2019
Comparatively Barcoded Chromosomes of Brachypodium Perennials Tell the Story of Their Karyotype Structure and Evolution journal November 2019
WRKY transcription factors: Jack of many trades in plants journal February 2014

Similar Records

Related Subjects