1
|
An Y, Jiao X, Yang S, Wang S, Chen N, Huang L, Jiang C, Lu M, Zhang J. Evaluation of novel promoters for vascular tissue-specific gene expression in Populus. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 344:112083. [PMID: 38588982 DOI: 10.1016/j.plantsci.2024.112083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/19/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
Due to the extended generation cycle of trees, the breeding process for forest trees tends to be time-consuming. Genetic engineering has emerged as a viable approach to expedite the genetic breeding of forest trees. However, current genetic engineering techniques employed in forest trees often utilize continuous expression promoters such as CaMV 35S, which may result in unintended consequences by introducing genes into non-target tissues. Therefore, it is imperative to develop specific promoters for forest trees to facilitate targeted and precise design and breeding. In this study, we utilized single-cell RNA-Seq data and co-expression network analysis during wood formation to identify three vascular tissue-specific genes in poplar, PP2-A10, PXY, and VNS07, which are expressed in the phloem, cambium/expanding xylem, and mature xylem, respectively. Subsequently, we cloned the promoters of these three genes from '84K' poplar and constructed them into a vector containing the eyGFPuv visual selection marker, along with the 35S mini enhancer to drive GUS gene expression. Transgenic poplars expressing the ProPagPP2-A10::GUS, ProPagPXY::GUS, and ProPagVNS07::GUS constructs were obtained. To further elucidate the tissue specificity of these promoters, we employed qPCR, histochemical staining, and GUS enzyme activity. Our findings not only establish a solid foundation for the future utilization of these promoters to precisely express of specific functional genes in stems but also provide a novel perspective for the modular breeding of forest trees.
Collapse
Affiliation(s)
- Yi An
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Xue Jiao
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Song Yang
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Shiqi Wang
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Ningning Chen
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Lichao Huang
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Cheng Jiang
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Mengzhu Lu
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Jin Zhang
- State Key Laboratory of Subtropical Silviculture, Sino-Australia Plant Cell Wall Research Centre, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China.
| |
Collapse
|
2
|
Dos Santos CF, Ramos JD, de Carvalho FG, Dorneles AL, Menezes TRD, Pinheiro AC, Blochtein B. Survivorship and food consumption of immatures and adults of Apis mellifera and Scaptotrigona bipunctata exposed to genetically modified eucalyptus pollen. Transgenic Res 2023; 32:179-191. [PMID: 37029291 DOI: 10.1007/s11248-023-00343-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/14/2023] [Indexed: 04/09/2023]
Abstract
Eucalyptus comprises the largest planted area of cultivated production forest in Brazil. Genetic modification (GM) of eucalyptus can provide additional characteristics for increasing productivity and protecting wood yield, as well as potentially altering fiber for a diversity of industrial uses. However, prior to releasing a new GM plant, risk assessments studies with non-target organisms must be undertaken. Bees are prominent biological models since they play an important role in varied ecosystems, including for Eucalyptus pollination. The main goal of this study was to evaluate whether a novel event (Eucalyptus 751K032), which carries the cp4-epsps gene that encodes the protein CP4-EPSPS and nptII gene that encodes the protein NPTII, might adversely affect honey bees (Apis mellifera) and stingless bees (Scaptotrigona bipunctata). The experiments were performed in southern Brazil, as follows: (i) larvae and adults were separately investigated, (ii) three or four different pollen diets were offered to bees, depending on larval or adult status, and (iii) two biological attributes, i.e., survivorship of larvae and adults and food intake by adults were evaluated. The diets were prepared with pollen from GM Eucalyptus 751K032; pollen from conventional Eucalyptus clone FGN-K, multifloral pollen or pure larval food. The insecticide dimethoate was used to evaluate the sensitivity of bees to toxic substances. Datasets were analyzed with Chi-square test, survival curves and repeated measures ANOVA. Results indicated no evidence of adverse effects of Eucalyptus pollen 751K032 on either honey bees or stingless bees assessed here. Therefore, the main findings suggest that the novel event may be considered harmless to these organisms since neither survivorship nor food consumption by bees were affected by it.
Collapse
Affiliation(s)
- Charles F Dos Santos
- Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Porto Alegre, RS, 90619-900, Brazil.
| | - Jenifer D Ramos
- Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Porto Alegre, RS, 90619-900, Brazil
| | - Fernanda G de Carvalho
- Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Porto Alegre, RS, 90619-900, Brazil
| | - Andressa L Dorneles
- Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Porto Alegre, RS, 90619-900, Brazil
| | - Thais R D Menezes
- Suzano S.A. (FuturaGene - Biotech Division), Itapetininga, SP, 18207-780, Brazil
| | | | - Betina Blochtein
- Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Porto Alegre, RS, 90619-900, Brazil
| |
Collapse
|
3
|
CRISPR-Based Genome Editing and Its Applications in Woody Plants. Int J Mol Sci 2022; 23:ijms231710175. [PMID: 36077571 PMCID: PMC9456532 DOI: 10.3390/ijms231710175] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/18/2022] [Accepted: 08/31/2022] [Indexed: 12/21/2022] Open
Abstract
CRISPR/Cas-based genome editing technology provides straightforward, proficient, and multifunctional ways for the site-directed modification of organism genomes and genes. The application of CRISPR-based technology in plants has a vast potential value in gene function research, germplasm innovation, and genetic improvement. The complexity of woody plants genome may pose significant challenges in the application and expansion of various new editing techniques, such as Cas9, 12, 13, and 14 effectors, base editing, particularly for timberland species with a long life span, huge genome, and ploidy. Therefore, many novel optimisms have been drawn to molecular breeding research based on woody plants. This review summarizes the recent development of CRISPR/Cas applications for essential traits, including wood properties, flowering, biological stress, abiotic stress, growth, and development in woody plants. We outlined the current problems and future development trends of this technology in germplasm and the improvement of products in woody plants.
Collapse
|
4
|
Nelson CD. Tree breeding, a necessary complement to genetic engineering. NEW FORESTS 2022; 54:1-18. [PMID: 35991378 PMCID: PMC9379239 DOI: 10.1007/s11056-022-09931-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The fields of tree breeding and genetic engineering can be perceived as being antagonistic towards each other-genetic engineers suggesting that tree breeding is too slow and expensive and tree breeders suggesting that genetic engineering is not practical and too expensive. We argue here that both fields have much to offer forestry and the success of each is intimately tied to the other. The major purposes of genetic engineering in forestry are described as well as the importance of evaluating tree engineering initiatives in the context of tree improvement and silviculture and integrating genetic engineering with tree breeding from start to finish. A generalized approach is developed that meets these requirements and demonstrates the interrelationships between the activities and phases of each program. In addition, a case study of the American chestnut (Castanea dentata) is provided to underscore the value of integrating genetic engineering and tree breeding programs to achieve a long-term conservation goal.
Collapse
Affiliation(s)
- C. Dana Nelson
- USDA Forest Service, Southern Research Station, Lexington, KY 40546 USA
| |
Collapse
|
5
|
Morales-Quintana L, Ramos P. A Talk between Flavonoids and Hormones to Reorient the Growth of Gymnosperms. Int J Mol Sci 2021; 22:ijms222312630. [PMID: 34884435 PMCID: PMC8657560 DOI: 10.3390/ijms222312630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/20/2021] [Accepted: 11/20/2021] [Indexed: 12/05/2022] Open
Abstract
Plants reorient the growth of affected organs in response to the loss of gravity vector. In trees, this phenomenon has received special attention due to its importance for the forestry industry of conifer species. Sustainable management is a key factor in improving wood quality. It is of paramount importance to understand the molecular and genetic mechanisms underlying wood formation, together with the hormonal and environmental factors that affect wood formation and quality. Hormones are related to the modulation of vertical growth rectification. Many studies have resulted in a model that proposes differential growth in the stem due to unequal auxin and jasmonate allocation. Furthermore, many studies have suggested that in auxin distribution, flavonoids act as molecular controllers. It is well known that flavonoids affect auxin flux, and this is a new area of study to understand the intracellular concentrations and how these compounds can control the gravitropic response. In this review, we focused on different molecular aspects related to the hormonal role in flavonoid homeostasis and what has been done in conifer trees to identify molecular players that could take part during the gravitropic response and reduce low-quality wood formation.
Collapse
Affiliation(s)
- Luis Morales-Quintana
- Multidisciplinary Agroindustry Research Laboratory, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca 3467987, Chile
- Correspondence: (L.M.-Q.); (P.R.); Tel.: +56-71-2735-699 (L.M.-Q.); +56-73-2213-501 (P.R.)
| | - Patricio Ramos
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Chile
- Centro de Biotecnología de los Recursos Naturales (CenBio), Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Talca 3460000, Chile
- Centro del Secano, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Talca 3460000, Chile
- Correspondence: (L.M.-Q.); (P.R.); Tel.: +56-71-2735-699 (L.M.-Q.); +56-73-2213-501 (P.R.)
| |
Collapse
|
6
|
Li H, Yang Y, Wang H, Liu S, Jia F, Su Y, Li S, He F, Feng C, Niu M, Wang J, Liu C, Yin W, Xia X. The Receptor-Like Kinase ERECTA Confers Improved Water Use Efficiency and Drought Tolerance to Poplar via Modulating Stomatal Density. Int J Mol Sci 2021; 22:ijms22147245. [PMID: 34298865 PMCID: PMC8303786 DOI: 10.3390/ijms22147245] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/21/2021] [Accepted: 06/28/2021] [Indexed: 12/15/2022] Open
Abstract
Poplar is one of the most important tree species in the north temperate zone, but poplar plantations are quite water intensive. We report here that CaMV 35S promoter-driven overexpression of the PdERECTA gene, which is a member of the LRR-RLKs family from Populus nigra × (Populus deltoides × Populus nigra), improves water use efficiency and enhances drought tolerance in triploid white poplar. PdERECTA localizes to the plasma membrane. Overexpression plants showed lower stomatal density and larger stomatal size. The abaxial stomatal density was 24-34% lower and the stomatal size was 12-14% larger in overexpression lines. Reduced stomatal density led to a sharp restriction of transpiration, which was about 18-35% lower than the control line, and instantaneous water use efficiency was around 14-63% higher in overexpression lines under different conditions. These phenotypic changes led to increased drought tolerance. PdERECTA overexpression plants not only survived longer after stopping watering but also performed better when supplied with limited water, as they had better physical and photosynthesis conditions, faster growth rate, and higher biomass accumulation. Taken together, our data suggest that PdERECTA can alter the development pattern of stomata to reduce stomatal density, which then restricts water consumption, conferring enhanced drought tolerance to poplar. This makes PdERECTA trees promising candidates for establishing more water use efficient plantations.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Xinli Xia
- Correspondence: ; Tel.: +86-010-6233-6400
| |
Collapse
|
7
|
Amin I, Rasool S, Mir MA, Wani W, Masoodi KZ, Ahmad P. Ion homeostasis for salinity tolerance in plants: a molecular approach. PHYSIOLOGIA PLANTARUM 2021; 171:578-594. [PMID: 32770745 DOI: 10.1111/ppl.13185] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/23/2020] [Accepted: 08/06/2020] [Indexed: 05/07/2023]
Abstract
Soil salinity is one of the major environmental stresses faced by the plants. Sodium chloride is the most important salt responsible for inducing salt stress by disrupting the osmotic potential. Due to various innate mechanisms, plants adapt to the sodic niche around them. Genes and transcription factors regulating ion transport and exclusion such as salt overly sensitive (SOS), Na+ /H+ exchangers (NHXs), high sodium affinity transporter (HKT) and plasma membrane protein (PMP) are activated during salinity stress and help in alleviating cells of ion toxicity. For salt tolerance in plants signal transduction and gene expression is regulated via transcription factors such as NAM (no apical meristem), ATAF (Arabidopsis transcription activation factor), CUC (cup-shaped cotyledon), Apetala 2/ethylene responsive factor (AP2/ERF), W-box binding factor (WRKY) and basic leucine zipper domain (bZIP). Cross-talk between all these transcription factors and genes aid in developing the tolerance mechanisms adopted by plants against salt stress. These genes and transcription factors regulate the movement of ions out of the cells by opening various membrane ion channels. Mutants or knockouts of all these genes are known to be less salt-tolerant compared to wild-types. Using novel molecular techniques such as analysis of genome, transcriptome, ionome and metabolome of a plant, can help in expanding the understanding of salt tolerance mechanism in plants. In this review, we discuss the genes responsible for imparting salt tolerance under salinity stress through transport dynamics of ion balance and need to integrate high-throughput molecular biology techniques to delineate the issue.
Collapse
Affiliation(s)
- Insha Amin
- Molecular Biology Lab, Division of Veterinary Biochemistry, FVSc & A.H., SKUAST, Shuhama, India
| | - Saiema Rasool
- Department of School Education, Govt. of Jammu & Kashmir, Srinagar, 190001, India
| | - Mudasir A Mir
- Transcriptomics Lab, Division of Plant Biotechnology, SKUAST-Kashmir, Shalimar, 190025, India
| | - Wasia Wani
- Transcriptomics Lab, Division of Plant Biotechnology, SKUAST-Kashmir, Shalimar, 190025, India
| | - Khalid Z Masoodi
- Transcriptomics Lab, Division of Plant Biotechnology, SKUAST-Kashmir, Shalimar, 190025, India
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
- Department of Botany, S. P. College, Srinagar, Jammu and Kashmir, 190001, India
| |
Collapse
|
8
|
Rodrigues AM, Miguel C, Chaves I, António C. Mass spectrometry-based forest tree metabolomics. MASS SPECTROMETRY REVIEWS 2021; 40:126-157. [PMID: 31498921 DOI: 10.1002/mas.21603] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 08/05/2019] [Indexed: 05/24/2023]
Abstract
Research in forest tree species has advanced slowly when compared with other agricultural crops and model organisms, mainly due to the long-life cycles, large genome sizes, and lack of genomic tools. Additionally, trees are complex matrices, and the presence of interferents (e.g., oleoresins and cellulose) challenges the analysis of tree tissues with mass spectrometry (MS)-based analytical platforms. In this review, advances in MS-based forest tree metabolomics are discussed. Given their economic and ecological significance, particular focus is given to Pinus, Quercus, and Eucalyptus forest tree species to better understand their metabolite responses to abiotic and biotic stresses in the current climate change scenario. Furthermore, MS-based metabolomics technologies produce large and complex datasets that require expertize to adequately manage, process, analyze, and store the data in dedicated repositories. To ensure that the full potential of forest tree metabolomics data are translated into new knowledge, these data should comply with the FAIR principles (i.e., Findable, Accessible, Interoperable, and Re-usable). It is essential that adequate standards are implemented to annotate metadata from forest tree metabolomics studies as is already required by many science and governmental agencies and some major scientific publishers. © 2019 John Wiley & Sons Ltd. Mass Spec Rev 40:126-157, 2021.
Collapse
Affiliation(s)
- Ana Margarida Rodrigues
- Plant Metabolomics Laboratory, GreenIT-Bioresources for Sustainability, Instituto de Tecnologia Química e Biológica António Xavie, Universidade Nova de Lisboa (ITQB NOVA) Avenida da República, Oeiras, 2780-157, Portugal
| | - Célia Miguel
- Forest Genomics & Molecular Genetics Lab, BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016, Lisboa, Portugal
- Instituto de Biologia Experimental e Tecnológica (iBET), 2780-157, Oeiras, Portugal
| | - Inês Chaves
- Forest Genomics & Molecular Genetics Lab, BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016, Lisboa, Portugal
- Instituto de Biologia Experimental e Tecnológica (iBET), 2780-157, Oeiras, Portugal
| | - Carla António
- Plant Metabolomics Laboratory, GreenIT-Bioresources for Sustainability, Instituto de Tecnologia Química e Biológica António Xavie, Universidade Nova de Lisboa (ITQB NOVA) Avenida da República, Oeiras, 2780-157, Portugal
| |
Collapse
|
9
|
Increasing Green Infrastructure in Cities: Impact on Ambient Temperature, Air Quality and Heat-Related Mortality and Morbidity. BUILDINGS 2020. [DOI: 10.3390/buildings10120233] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Urban vegetation provides undeniable benefits to urban climate, health, thermal comfort and environmental quality of cities and represents one of the most considered urban heat mitigation measures. Despite the plethora of available scientific information, very little is known about the holistic and global impact of a potential increase of urban green infrastructure (GI) on urban climate, environmental quality and health, and their synergies and trade-offs. There is a need to evaluate globally the extent to which additional GI provides benefits and quantify the problems arising from the deployment of additional greenery in cities which are usually overlooked or neglected. The present paper has reviewed and analysed 55 fully evaluated scenarios and case studies investigating the impact of additional GI on urban temperature, air pollution and health for 39 cities. Statistically significant correlations between the percentage increase of the urban GI and the peak daily and night ambient temperatures are obtained. The average maximum peak daily and night-time temperature drop may not exceed 1.8 and 2.3 °C respectively, even for a maximum GI fraction. In parallel, a statistically significant correlation between the peak daily temperature decrease caused by higher GI fractions and heat-related mortality is found. When the peak daily temperature drops by 0.1 °C, then the percentage of heat-related mortality decreases on average by 3.0% The impact of additional urban GI on the concentration of urban pollutants is analysed, and the main parameters contributing to decrease or increase of the pollutants’ concentration are presented.
Collapse
|
10
|
Yang X, Medford JI, Markel K, Shih PM, De Paoli HC, Trinh CT, McCormick AJ, Ployet R, Hussey SG, Myburg AA, Jensen PE, Hassan MM, Zhang J, Muchero W, Kalluri UC, Yin H, Zhuo R, Abraham PE, Chen JG, Weston DJ, Yang Y, Liu D, Li Y, Labbe J, Yang B, Lee JH, Cottingham RW, Martin S, Lu M, Tschaplinski TJ, Yuan G, Lu H, Ranjan P, Mitchell JC, Wullschleger SD, Tuskan GA. Plant Biosystems Design Research Roadmap 1.0. BIODESIGN RESEARCH 2020; 2020:8051764. [PMID: 37849899 PMCID: PMC10521729 DOI: 10.34133/2020/8051764] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/30/2020] [Indexed: 10/19/2023] Open
Abstract
Human life intimately depends on plants for food, biomaterials, health, energy, and a sustainable environment. Various plants have been genetically improved mostly through breeding, along with limited modification via genetic engineering, yet they are still not able to meet the ever-increasing needs, in terms of both quantity and quality, resulting from the rapid increase in world population and expected standards of living. A step change that may address these challenges would be to expand the potential of plants using biosystems design approaches. This represents a shift in plant science research from relatively simple trial-and-error approaches to innovative strategies based on predictive models of biological systems. Plant biosystems design seeks to accelerate plant genetic improvement using genome editing and genetic circuit engineering or create novel plant systems through de novo synthesis of plant genomes. From this perspective, we present a comprehensive roadmap of plant biosystems design covering theories, principles, and technical methods, along with potential applications in basic and applied plant biology research. We highlight current challenges, future opportunities, and research priorities, along with a framework for international collaboration, towards rapid advancement of this emerging interdisciplinary area of research. Finally, we discuss the importance of social responsibility in utilizing plant biosystems design and suggest strategies for improving public perception, trust, and acceptance.
Collapse
Affiliation(s)
- Xiaohan Yang
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - June I. Medford
- Department of Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Kasey Markel
- Department of Plant Biology, University of California, Davis, Davis, CA, USA
| | - Patrick M. Shih
- Department of Plant Biology, University of California, Davis, Davis, CA, USA
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
| | - Henrique C. De Paoli
- Department of Biodesign, Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Cong T. Trinh
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Alistair J. McCormick
- SynthSys and Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3BF, UK
| | - Raphael Ployet
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa
| | - Steven G. Hussey
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa
| | - Alexander A. Myburg
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa
| | - Poul Erik Jensen
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1858, Frederiksberg, Copenhagen, Denmark
| | - Md Mahmudul Hassan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Jin Zhang
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Wellington Muchero
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Udaya C. Kalluri
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Hengfu Yin
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Paul E. Abraham
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Jin-Gui Chen
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - David J. Weston
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Yinong Yang
- Department of Plant Pathology and Environmental Microbiology and the Huck Institute of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Degao Liu
- Department of Genetics, Cell Biology and Development, Center for Precision Plant Genomics and Center for Genome Engineering, University of Minnesota, Saint Paul, MN 55108, USA
| | - Yi Li
- Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT 06269, USA
| | - Jessy Labbe
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Bing Yang
- Division of Plant Sciences, Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Donald Danforth Plant Science Center, St. Louis, MO, USA
| | - Jun Hyung Lee
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | | | - Stanton Martin
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Mengzhu Lu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Timothy J. Tschaplinski
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Guoliang Yuan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Haiwei Lu
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Priya Ranjan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Julie C. Mitchell
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Stan D. Wullschleger
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Gerald A. Tuskan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| |
Collapse
|
11
|
Clifton‐Brown J, Harfouche A, Casler MD, Dylan Jones H, Macalpine WJ, Murphy‐Bokern D, Smart LB, Adler A, Ashman C, Awty‐Carroll D, Bastien C, Bopper S, Botnari V, Brancourt‐Hulmel M, Chen Z, Clark LV, Cosentino S, Dalton S, Davey C, Dolstra O, Donnison I, Flavell R, Greef J, Hanley S, Hastings A, Hertzberg M, Hsu T, Huang LS, Iurato A, Jensen E, Jin X, Jørgensen U, Kiesel A, Kim D, Liu J, McCalmont JP, McMahon BG, Mos M, Robson P, Sacks EJ, Sandu A, Scalici G, Schwarz K, Scordia D, Shafiei R, Shield I, Slavov G, Stanton BJ, Swaminathan K, Taylor G, Torres AF, Trindade LM, Tschaplinski T, Tuskan GA, Yamada T, Yeon Yu C, Zalesny RS, Zong J, Lewandowski I. Breeding progress and preparedness for mass-scale deployment of perennial lignocellulosic biomass crops switchgrass, miscanthus, willow and poplar. GLOBAL CHANGE BIOLOGY. BIOENERGY 2019; 11:118-151. [PMID: 30854028 PMCID: PMC6392185 DOI: 10.1111/gcbb.12566] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/18/2018] [Indexed: 05/07/2023]
Abstract
Genetic improvement through breeding is one of the key approaches to increasing biomass supply. This paper documents the breeding progress to date for four perennial biomass crops (PBCs) that have high output-input energy ratios: namely Panicum virgatum (switchgrass), species of the genera Miscanthus (miscanthus), Salix (willow) and Populus (poplar). For each crop, we report on the size of germplasm collections, the efforts to date to phenotype and genotype, the diversity available for breeding and on the scale of breeding work as indicated by number of attempted crosses. We also report on the development of faster and more precise breeding using molecular breeding techniques. Poplar is the model tree for genetic studies and is furthest ahead in terms of biological knowledge and genetic resources. Linkage maps, transgenesis and genome editing methods are now being used in commercially focused poplar breeding. These are in development in switchgrass, miscanthus and willow generating large genetic and phenotypic data sets requiring concomitant efforts in informatics to create summaries that can be accessed and used by practical breeders. Cultivars of switchgrass and miscanthus can be seed-based synthetic populations, semihybrids or clones. Willow and poplar cultivars are commercially deployed as clones. At local and regional level, the most advanced cultivars in each crop are at technology readiness levels which could be scaled to planting rates of thousands of hectares per year in about 5 years with existing commercial developers. Investment in further development of better cultivars is subject to current market failure and the long breeding cycles. We conclude that sustained public investment in breeding plays a key role in delivering future mass-scale deployment of PBCs.
Collapse
Affiliation(s)
- John Clifton‐Brown
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Antoine Harfouche
- Department for Innovation in Biological, Agrofood and Forest systemsUniversity of TusciaViterboItaly
| | | | - Huw Dylan Jones
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | | | | | - Lawrence B. Smart
- Horticulture Section, School of Integrative Plant ScienceCornell UniversityGenevaNew York
| | - Anneli Adler
- SweTree Technologies ABUmeåSweden
- Institute of Crop Production EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Chris Ashman
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Danny Awty‐Carroll
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | | | - Sebastian Bopper
- Department of Seed Science and Technology, Institute of Plant Breeding, Seed Science and Population GeneticsUniversity of HohenheimStuttgartGermany
| | - Vasile Botnari
- Institute of Genetics, Physiology and Plant Protection (IGFPP) of Academy of Sciences of MoldovaChisinauMoldova
| | | | - Zhiyong Chen
- Insitute of MiscanthusHunan Agricultural UniversityHunan ChangshaChina
| | - Lindsay V. Clark
- Department of Crop Sciences & Center for Advanced Bioenergy and Bioproducts Innovation, 279 Edward R Madigan LaboratoryUniversity of IllinoisUrbanaIllinois
| | - Salvatore Cosentino
- Dipartimento di Agricoltura Alimentazione e AmbienteUniversità degli Studi di CataniaCataniaItaly
| | - Sue Dalton
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Chris Davey
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Oene Dolstra
- Plant BreedingWageningen University & ResearchWageningenThe Netherlands
| | - Iain Donnison
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | | | - Joerg Greef
- Julius Kuhn‐Institut (JKI)Bundesforschungsinstitut fur KulturpflanzenBraunschweigGermany
| | | | - Astley Hastings
- Institute of Biological and Environmental ScienceUniversity of AberdeenAberdeenUK
| | | | - Tsai‐Wen Hsu
- Taiwan Endemic Species Research Institute (TESRI)Nantou CountyTaiwan
| | - Lin S. Huang
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Antonella Iurato
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Elaine Jensen
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Xiaoli Jin
- Department of Agronomy & The Key Laboratory of Crop Germplasm Resource of Zhejiang ProvinceZhejiang UniversityHangzhouChina
| | - Uffe Jørgensen
- Department of AgroecologyAarhus University Centre for Circular BioeconomyTjeleDenmark
| | - Andreas Kiesel
- Department of Biobased Products and Energy Crops, Institute of Crop ScienceUniversity of HohenheimStuttgartGermany
| | - Do‐Soon Kim
- Department of Plant Sciences, Research Institute of Agriculture & Life Sciences, CALSSeoul National UniversitySeoulKorea
| | - Jianxiu Liu
- Institute of BotanyJiangsu Province and Chinese Academy of SciencesNanjingChina
| | - Jon P. McCalmont
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Bernard G. McMahon
- Natural Resources Research InstituteUniversity of Minnesota – DuluthDuluthMinnesota
| | | | - Paul Robson
- Institute of Biological, Environmental and Rural SciencesAberystwyth UniversityAberystwythUK
| | - Erik J. Sacks
- Department of Crop Sciences & Center for Advanced Bioenergy and Bioproducts Innovation, 279 Edward R Madigan LaboratoryUniversity of IllinoisUrbanaIllinois
| | - Anatolii Sandu
- Institute of Genetics, Physiology and Plant Protection (IGFPP) of Academy of Sciences of MoldovaChisinauMoldova
| | - Giovanni Scalici
- Dipartimento di Agricoltura Alimentazione e AmbienteUniversità degli Studi di CataniaCataniaItaly
| | - Kai Schwarz
- Julius Kuhn‐Institut (JKI)Bundesforschungsinstitut fur KulturpflanzenBraunschweigGermany
| | - Danilo Scordia
- Dipartimento di Agricoltura Alimentazione e AmbienteUniversità degli Studi di CataniaCataniaItaly
| | - Reza Shafiei
- James Hutton InstituteUniversity of DundeeDundeeUK
| | | | | | | | | | - Gail Taylor
- Biological SciencesUniversity of SouthamptonSouthamptonUK
| | - Andres F. Torres
- Plant BreedingWageningen University & ResearchWageningenThe Netherlands
| | - Luisa M. Trindade
- Plant BreedingWageningen University & ResearchWageningenThe Netherlands
| | - Timothy Tschaplinski
- The Center for Bioenergy InnovationOak Ridge National LaboratoryOak RidgeTennessee
| | - Gerald A. Tuskan
- The Center for Bioenergy InnovationOak Ridge National LaboratoryOak RidgeTennessee
| | - Toshihiko Yamada
- Field Science Centre for the Northern BiosphereHokkaido UniversitySapporoJapan
| | - Chang Yeon Yu
- College of Agriculture and Life Sciences 2Kangwon National UniversityChuncheonSouth Korea
| | | | - Junqin Zong
- Institute of BotanyJiangsu Province and Chinese Academy of SciencesNanjingChina
| | - Iris Lewandowski
- Department of Biobased Products and Energy Crops, Institute of Crop ScienceUniversity of HohenheimStuttgartGermany
| |
Collapse
|
12
|
Fritsche S, Klocko AL, Boron A, Brunner AM, Thorlby G. Strategies for Engineering Reproductive Sterility in Plantation Forests. FRONTIERS IN PLANT SCIENCE 2018; 9:1671. [PMID: 30498505 PMCID: PMC6249417 DOI: 10.3389/fpls.2018.01671] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 10/26/2018] [Indexed: 05/03/2023]
Abstract
A considerable body of research exists concerning the development of technologies to engineer sterility in forest trees. The primary driver for this work has been to mitigate concerns arising from gene flow from commercial plantings of genetically engineered (GE) trees to non-GE plantations, or to wild or feral relatives. More recently, there has been interest in the use of sterility technologies as a means to mitigate the global environmental and socio-economic damage caused by the escape of non-native invasive tree species from planted forests. The current sophisticated understanding of the molecular processes underpinning sexual reproduction in angiosperms has facilitated the successful demonstration of a number of control strategies in hardwood tree species, particularly in the model hardwood tree Poplar. Despite gymnosperm softwood trees, such as pines, making up the majority of the global planted forest estate, only pollen sterility, via cell ablation, has been demonstrated in softwoods. Progress has been limited by the lack of an endogenous model system, long timescales required for testing, and key differences between softwood reproductive pathways and those of well characterized angiosperm model systems. The availability of comprehensive genome and transcriptome resources has allowed unprecedented insights into the reproductive processes of both hardwood and softwood tree species. This increased fundamental knowledge together with the implementation of new breeding technologies, such as gene editing, which potentially face a less oppressive regulatory regime, is making the implementation of engineered sterility into commercial forestry a realistic possibility.
Collapse
Affiliation(s)
| | - Amy L. Klocko
- Department of Biology, University of Colorado Colorado Springs, Colorado Springs, CO, United States
| | | | - Amy M. Brunner
- Department of Forest Resources and Environmental Conservation, Virginia Tech, Blacksburg, VA, United States
| | | |
Collapse
|
13
|
Shekhawat JK, Rai MK, Shekhawat NS, Kataria V. Exploring genetic variability in Prosopis cineraria using two gene targeted CAAT box-derived polymorphism (CBDP) and start codon targeted (SCoT) polymorphism markers. Mol Biol Rep 2018; 45:2359-2367. [PMID: 30255277 DOI: 10.1007/s11033-018-4400-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/21/2018] [Indexed: 10/28/2022]
Abstract
Two gene targeted molecular marker systems, CAAT box-derived polymorphism (CBDP) and start codon targeted (SCoT) polymorphism, were used to assess the genetic diversity and relatedness in Prosopis cineraria, a tree of abiotic stress tolerance, agroforestry and ethano-botanical importance. A total of ten wild populations consisting 49 individuals collected from different locations of Indian Thar Desert were examined for the genetic analysis of P. cineraria. Ten CBDP and seven SCoT primers, total 17 primers, generated 204 bands with an average of 12 bands per primer, of which 159 (76.8%) were polymorphic. The average PIC values for both CBDP and SCoT marker were 0.543 and 0.547, respectively. The cumulative data of these two markers were used to analyze different genetic diversity indices and compute pair-wise distances. The population genetic diversity analysis based on cumulative data of CBDP and SCoT markers revealed the high levels of genetic differentiation (GST = 0.341; GST > 0.15 as high), low value of gene flow (Nm = 0.966; Nm > 1 as high) and high fixation index (FST = 0. 415). The highest genetic diversity was observed among NGBAR populations followed by CHR populations, while SIK populations showed lowest genetic diversity. AMOVA revealed the percent molecular variation was higher within the populations (77%) compared to that of among populations (23%). The clustering pattern based on UPGMA and PCoA plot clearly demonstrated the genetic relationship among the genotypes collected from the different regions of Indian Thar Desert.
Collapse
Affiliation(s)
- Jatan K Shekhawat
- Biotechnology Unit, Department of Botany (UGC-Centre of Advanced Study), Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India
| | - Manoj K Rai
- Biotechnology Unit, Department of Botany (UGC-Centre of Advanced Study), Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India.,Department of Environmental Science, Indira Gandhi National Tribal University, Amarkantak, 484887, India
| | - N S Shekhawat
- Biotechnology Unit, Department of Botany (UGC-Centre of Advanced Study), Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India
| | - Vinod Kataria
- Biotechnology Unit, Department of Botany (UGC-Centre of Advanced Study), Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India.
| |
Collapse
|
14
|
Bulleri F, Eriksson BK, Queirós A, Airoldi L, Arenas F, Arvanitidis C, Bouma TJ, Crowe TP, Davoult D, Guizien K, Iveša L, Jenkins SR, Michalet R, Olabarria C, Procaccini G, Serrão EA, Wahl M, Benedetti-Cecchi L. Harnessing positive species interactions as a tool against climate-driven loss of coastal biodiversity. PLoS Biol 2018; 16:e2006852. [PMID: 30180154 PMCID: PMC6138402 DOI: 10.1371/journal.pbio.2006852] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 09/14/2018] [Indexed: 12/17/2022] Open
Abstract
Habitat-forming species sustain biodiversity and ecosystem functioning in harsh environments through the amelioration of physical stress. Nonetheless, their role in shaping patterns of species distribution under future climate scenarios is generally overlooked. Focusing on coastal systems, we assess how habitat-forming species can influence the ability of stress-sensitive species to exhibit plastic responses, adapt to novel environmental conditions, or track suitable climates. Here, we argue that habitat-former populations could be managed as a nature-based solution against climate-driven loss of biodiversity. Drawing from different ecological and biological disciplines, we identify a series of actions to sustain the resilience of marine habitat-forming species to climate change, as well as their effectiveness and reliability in rescuing stress-sensitive species from increasingly adverse environmental conditions.
Collapse
Affiliation(s)
- Fabio Bulleri
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Pisa, Italy
| | - Britas Klemens Eriksson
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - Ana Queirós
- Plymouth Marine Laboratory, Plymouth, United Kingdom
| | - Laura Airoldi
- Dipartimento di Scienze Biologiche, Geologiche ed Ambientali, University of Bologna, CoNISMa, Ravenna, Italy
| | - Francisco Arenas
- CIIMAR-Interdisciplinary Center of Marine and Environmental Research, Matosinhos, Portugal
| | - Christos Arvanitidis
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Thalassokosmos, Crete, Greece
| | - Tjeerd J Bouma
- NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems and Utrecht University, Yerseke, the Netherlands
| | - Tasman P Crowe
- Earth Institute and School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Dominique Davoult
- Sorbonne Université, CNRS, UMR 7144 Adaptation et Diversité en Milieu Marin, Roscoff, France
| | - Katell Guizien
- Sorbonne Université, CNRS, Laboratoire d'Ecogéochimie des Environnements Benthiques (LECOB), Banyuls-sur-Mer, France
| | - Ljiljana Iveša
- Ruđer Bošković Institute, Center for Marine Research, Rovinj, Croatia
| | - Stuart R Jenkins
- School of Ocean Sciences, Bangor University, Anglesey, United Kingdom
| | | | - Celia Olabarria
- Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias del Mar, Campus Lagoas-Marcosende, Universidade de Vigo, Vigo, Spain
| | | | - Ester A Serrão
- CCMAR, CIMAR, University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Martin Wahl
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
| | | |
Collapse
|
15
|
Mixed-species versus monocultures in plantation forestry: Development, benefits, ecosystem services and perspectives for the future. Glob Ecol Conserv 2018. [DOI: 10.1016/j.gecco.2018.e00419] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
16
|
Nguyen PQ, Courchesne NMD, Duraj-Thatte A, Praveschotinunt P, Joshi NS. Engineered Living Materials: Prospects and Challenges for Using Biological Systems to Direct the Assembly of Smart Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704847. [PMID: 29430725 PMCID: PMC6309613 DOI: 10.1002/adma.201704847] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/25/2017] [Indexed: 05/20/2023]
Abstract
Vast potential exists for the development of novel, engineered platforms that manipulate biology for the production of programmed advanced materials. Such systems would possess the autonomous, adaptive, and self-healing characteristics of living organisms, but would be engineered with the goal of assembling bulk materials with designer physicochemical or mechanical properties, across multiple length scales. Early efforts toward such engineered living materials (ELMs) are reviewed here, with an emphasis on engineered bacterial systems, living composite materials which integrate inorganic components, successful examples of large-scale implementation, and production methods. In addition, a conceptual exploration of the fundamental criteria of ELM technology and its future challenges is presented. Cradled within the rich intersection of synthetic biology and self-assembling materials, the development of ELM technologies allows the power of biology to be leveraged to grow complex structures and objects using a palette of bio-nanomaterials.
Collapse
Affiliation(s)
- Peter Q. Nguyen
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Noémie-Manuelle Dorval Courchesne
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Anna Duraj-Thatte
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Pichet Praveschotinunt
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Neel S. Joshi
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| |
Collapse
|
17
|
Xie Y, Chen P, Yan Y, Bao C, Li X, Wang L, Shen X, Li H, Liu X, Niu C, Zhu C, Fang N, Shao Y, Zhao T, Yu J, Zhu J, Xu L, van Nocker S, Ma F, Guan Q. An atypical R2R3 MYB transcription factor increases cold hardiness by CBF-dependent and CBF-independent pathways in apple. THE NEW PHYTOLOGIST 2018; 218:201-218. [PMID: 29266327 DOI: 10.1111/nph.14952] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/13/2017] [Indexed: 05/19/2023]
Abstract
Apple (Malus × domestica) trees are vulnerable to freezing temperatures. However, there has been only limited success in developing cold-hardy cultivars. This lack of progress is due at least partly to lack of understanding of the molecular mechanisms of freezing tolerance in apple. In this study, we evaluated the potential roles for two R2R3 MYB transcription factors (TFs), MYB88 and the paralogous FLP (MYB124), in cold stress in apple and Arabidopsis. We found that MYB88 and MYB124 positively regulate freezing tolerance and cold-responsive gene expression in both apple and Arabidopsis. Chromatin-Immunoprecipitation-qPCR and electrophoretic mobility shift assays showed that MdMYB88/MdMYB124 act as direct regulators of the COLD SHOCK DOMAIN PROTEIN 3 (MdCSP3) and CIRCADIAN CLOCK ASSOCIATED 1 (MdCCA1) genes. Dual luciferase reporter assay indicated that MdCCA1 but not MdCSP3 activated the expression of MdCBF3 under cold stress. Moreover, MdMYB88 and MdMYB124 promoted anthocyanin accumulation and H2 O2 detoxification in response to cold. Taken together, our results suggest that MdMYB88 and MdMYB124 positively regulate cold hardiness and cold-responsive gene expression under cold stress by C-REPEAT BINDING FACTOR (CBF)-dependent and CBF-independent pathways.
Collapse
Affiliation(s)
- Yinpeng Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Pengxiang Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Yan Yan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Chana Bao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xuewei Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Liping Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xiaoxia Shen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Haiyan Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xiaofang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Chundong Niu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Chen Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Nan Fang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Yun Shao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Tao Zhao
- Biosystematics Group, Wageningen University, 6708, PB Wageningen, the Netherlands
| | - Jiantao Yu
- College of Information Engineering, Northwest A&F University, Yangling, 712100, China
| | - Jianhua Zhu
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20742, USA
| | - Lingfei Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Steven van Nocker
- Department of Horticulture, Michigan State University, 1066 Bogue St, East Lansing, MI, 48824, USA
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| |
Collapse
|
18
|
Ployet R, Soler M, Carocha V, Ladouce N, Alves A, Rodrigues JC, Harvengt L, Marque C, Teulières C, Grima-Pettenati J, Mounet F. Long cold exposure induces transcriptional and biochemical remodelling of xylem secondary cell wall in Eucalyptus. TREE PHYSIOLOGY 2018. [PMID: 28633295 DOI: 10.1093/treephys/tpx062] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Although eucalypts are the most planted hardwood trees worldwide, the majority of them are frost sensitive. The recent creation of frost-tolerant hybrids such as Eucalyptus gundal plants (E. gunnii × E. dalrympleana hybrids), now enables the development of industrial plantations in northern countries. Our objective was to evaluate the impact of cold on the wood structure and composition of these hybrids, and on the biosynthetic and regulatory processes controlling their secondary cell-wall (SCW) formation. We used an integrated approach combining histology, biochemical characterization and transcriptomic profiling as well as gene co-expression analyses to investigate xylem tissues from Eucalyptus hybrids exposed to cold conditions. Chilling temperatures triggered the deposition of thicker and more lignified xylem cell walls as well as regulation at the transcriptional level of SCW genes. Most genes involved in lignin biosynthesis, except those specifically dedicated to syringyl unit biosynthesis, were up-regulated. The construction of a co-expression network enabled the identification of both known and potential new SCW transcription factors, induced by cold stress. These regulators at the crossroads between cold signalling and SCW formation are promising candidates for functional studies since they may contribute to the tolerance of E. gunnii × E. dalrympleana hybrids to cold.
Collapse
Affiliation(s)
- Raphael Ployet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| | - Marçal Soler
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| | - Victor Carocha
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
- Instituto de Tecnologia de Química Biológica (ITQB), Biotecnologia de Células Vegetais, Av. da Republica, 2781-157 Oeiras, Portugal
| | - Nathalie Ladouce
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| | - Ana Alves
- Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - José-Carlos Rodrigues
- Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Luc Harvengt
- FCBA, Biotechnology and Advanced Silviculture Department, Genetics and Biotechnology Team, F-33610 Cestas, France
| | - Christiane Marque
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| | - Chantal Teulières
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| | - Jacqueline Grima-Pettenati
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| | - Fabien Mounet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326 Castanet-Tolosan, France
| |
Collapse
|
19
|
Liu J, Ye M, Zhu S, Jiang L, Sang M, Gan J, Wang Q, Huang M, Wu R. Two-stage identification of SNP effects on dynamic poplar growth. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:286-296. [PMID: 29168265 DOI: 10.1111/tpj.13777] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/16/2017] [Accepted: 10/23/2017] [Indexed: 05/23/2023]
Abstract
This project proposes an approach to identify significant single nucleotide polymorphism (SNP) effects, both additive and dominant, on the dynamic growth of poplar in diameter and height. The annual changes in yearly phenotypes based on regular observation periods are considered to represent multiple responses. In total 156,362 candidate SNPs are studied, and the phenotypes of 64 poplar trees are recorded. To address this ultrahigh dimensionality issue, this paper adopts a two-stage approach. First, the conventional genome-wide association studies (GWAS) and the distance correlation sure independence screening (DC-SIS) methods (Li et al., 2012) were combined to reduce the model dimensions at the sample size; second, a grouped penalized regression was applied to further refine the model and choose the final sparse SNPs. The multiple response issue was also carefully addressed. The SNP effects on the dynamic diameter and height growth patterns of poplar were systematically analyzed. In addition, a series of intensive simulation studies was performed to validate the proposed approach.
Collapse
Affiliation(s)
- Jingyuan Liu
- Department of Statistics in School of Economics, Wang Yanan Institute for Studies in Economics, Fujian Key Laboratory of Statistical Science, Xiamen University, China
| | - Meixia Ye
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100081, China
| | - Sheng Zhu
- Jiangsu Key Laboratory for Poplar Germplasm Enhancement and Variety Improvement, Nanjing Forestry University, Nanjing, 210037, China
| | - Libo Jiang
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100081, China
| | - Mengmeng Sang
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100081, China
| | - Jingwen Gan
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100081, China
| | - Qian Wang
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100081, China
| | - Minren Huang
- Jiangsu Key Laboratory for Poplar Germplasm Enhancement and Variety Improvement, Nanjing Forestry University, Nanjing, 210037, China
| | - Rongling Wu
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100081, China
- Department of Public Health Sciences, Penn State Hershey College of Medicine, Hershey, PA17033, USA
| |
Collapse
|
20
|
Biotechnology for bioenergy dedicated trees: meeting future energy demands. ACTA ACUST UNITED AC 2017; 73:15-32. [DOI: 10.1515/znc-2016-0185] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 03/26/2017] [Indexed: 11/15/2022]
Abstract
Abstract
With the increase in human demands for energy, purpose-grown woody crops could be part of the global renewable energy solution, especially in geographical regions where plantation forestry is feasible and economically important. In addition, efficient utilization of woody feedstocks would engage in mitigating greenhouse gas emissions, decreasing the challenge of food and energy security, and resolving the conflict between land use for food or biofuel production. This review compiles existing knowledge on biotechnological and genomics-aided improvements of biomass performance of purpose-grown poplar, willow, eucalyptus and pine species, and their relative hybrids, for efficient and sustainable bioenergy applications. This includes advancements in tree in vitro regeneration, and stable expression or modification of selected genes encoding desirable traits, which enhanced growth and yield, wood properties, site adaptability, and biotic and abiotic stress tolerance. Genetic modifications used to alter lignin/cellulose/hemicelluloses ratio and lignin composition, towards effective lignocellulosic feedstock conversion into cellulosic ethanol, are also examined. Biotech-trees still need to pass challengeable regulatory authorities’ processes, including biosafety and risk assessment analyses prior to their commercialization release. Hence, strategies developed to contain transgenes, or to mitigate potential transgene flow risks, are discussed.
Collapse
|
21
|
Ke Q, Kim HS, Wang Z, Ji CY, Jeong JC, Lee H, Choi Y, Xu B, Deng X, Yun D, Kwak S. Down-regulation of GIGANTEA-like genes increases plant growth and salt stress tolerance in poplar. PLANT BIOTECHNOLOGY JOURNAL 2017; 15:331-343. [PMID: 27565626 PMCID: PMC5316923 DOI: 10.1111/pbi.12628] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 08/21/2016] [Indexed: 05/02/2023]
Abstract
The flowering time regulator GIGANTEA (GI) connects networks involved in developmental stage transitions and environmental stress responses in Arabidopsis. However, little is known about the role of GI in growth, development and responses to environmental challenges in the perennial plant poplar. Here, we identified and functionally characterized three GI-like genes (PagGIa, PagGIb and PagGIc) from poplar (Populus alba × Populus glandulosa). PagGIs are predominantly nuclear localized and their transcripts are rhythmically expressed, with a peak around zeitgeber time 12 under long-day conditions. Overexpressing PagGIs in wild-type (WT) Arabidopsis induced early flowering and salt sensitivity, while overexpressing PagGIs in the gi-2 mutant completely or partially rescued its delayed flowering and enhanced salt tolerance phenotypes. Furthermore, the PagGIs-PagSOS2 complexes inhibited PagSOS2-regulated phosphorylation of PagSOS1 in the absence of stress, whereas these inhibitions were eliminated due to the degradation of PagGIs under salt stress. Down-regulation of PagGIs by RNA interference led to vigorous growth, higher biomass and enhanced salt stress tolerance in transgenic poplar plants. Taken together, these results indicate that several functions of Arabidopsis GI are conserved in its poplar orthologues, and they lay the foundation for developing new approaches to producing salt-tolerant trees for sustainable development on marginal lands worldwide.
Collapse
Affiliation(s)
- Qingbo Ke
- Plant Systems Engineering Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)DaejeonKorea
- Department of Green Chemistry and Environmental BiotechnologyKorea University of Science and Technology (UST)DaejeonKorea
| | - Ho Soo Kim
- Plant Systems Engineering Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)DaejeonKorea
| | - Zhi Wang
- Institute of Soil and Water ConservationChinese Academy of Science and Ministry of Water ResourcesNorthwest A & F UniversityShaanxiChina
| | - Chang Yoon Ji
- Plant Systems Engineering Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)DaejeonKorea
- Department of Green Chemistry and Environmental BiotechnologyKorea University of Science and Technology (UST)DaejeonKorea
| | - Jae Cheol Jeong
- Plant Systems Engineering Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)DaejeonKorea
- Department of Green Chemistry and Environmental BiotechnologyKorea University of Science and Technology (UST)DaejeonKorea
| | - Haeng‐Soon Lee
- Plant Systems Engineering Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)DaejeonKorea
- Department of Green Chemistry and Environmental BiotechnologyKorea University of Science and Technology (UST)DaejeonKorea
| | - Young‐Im Choi
- Division of Forest BiotechnologyKorea Forest Research InstituteSuwonKorea
| | - Bingcheng Xu
- Institute of Soil and Water ConservationChinese Academy of Science and Ministry of Water ResourcesNorthwest A & F UniversityShaanxiChina
| | - Xiping Deng
- Institute of Soil and Water ConservationChinese Academy of Science and Ministry of Water ResourcesNorthwest A & F UniversityShaanxiChina
| | - Dae‐Jin Yun
- Division of Applied Life Science (BK21plus Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuKorea
| | - Sang‐Soo Kwak
- Plant Systems Engineering Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)DaejeonKorea
- Department of Green Chemistry and Environmental BiotechnologyKorea University of Science and Technology (UST)DaejeonKorea
| |
Collapse
|
22
|
Nguyen VP, Cho JS, Choi YI, Lee SW, Han KH, Ko JH. Evaluation of a novel promoter from Populus trichocarpa for mature xylem tissue specific gene delivery. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 104:226-233. [PMID: 27038601 DOI: 10.1016/j.plaphy.2016.03.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/23/2016] [Accepted: 03/26/2016] [Indexed: 06/05/2023]
Abstract
Wood (i.e., secondary xylem) is an important raw material for many industrial applications. Mature xylem (MX) tissue-specific genetic modification offers an effective means to improve the chemical and physical properties of the wood. Here, we describe a promoter that drives strong gene expression in a MX tissue-specific manner. Using whole-transcriptome genechip analyses of different tissue types of poplar, we identified five candidate genes that had strong expression in the MX tissue. The putative promoter sequences of the five MX-specific genes were evaluated for their promoter activity in both transgenic Arabidopsis and poplar. Among them, we found the promoter of Potri.013G007900.1 (called the PtrMX3 promoter) had the strongest activity in MX and thus was further characterized. In the stem and root tissues of transgenic Arabidopsis plants, the PtrMX3 promoter activity was found exclusively in MX tissue. MX-specific activity of the promoter was reproduced in the stem tissue of transgenic poplar plants. The PtrMX3 promoter activity was not influenced by abiotic stresses or exogenously applied growth regulators, indicating the PtrMX3 promoter is bona fide MX tissue-specific. Our study provides a strong MX-specific promoter for MX-specific modifications of woody biomass.
Collapse
Affiliation(s)
- Van Phap Nguyen
- Department of Plant & Environmental New Resources, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Jin-Seong Cho
- Department of Plant & Environmental New Resources, Kyung Hee University, Yongin 17104, Republic of Korea; Division of Forest Biotechnology, Korea Forest Research Institute, Suwon 16631, Republic of Korea
| | - Young-Im Choi
- Division of Forest Biotechnology, Korea Forest Research Institute, Suwon 16631, Republic of Korea
| | - Sang-Won Lee
- Department of Genetic Engineering & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Kyung-Hwan Han
- Department of Horticulture and Department of Forestry, Michigan State University, East Lansing, MI 48824-1222, USA
| | - Jae-Heung Ko
- Department of Plant & Environmental New Resources, Kyung Hee University, Yongin 17104, Republic of Korea.
| |
Collapse
|
23
|
Lucas AM, Pasquali G, Astarita LV, Cassel E. Comparison of genetically engineered (GE) and non-GE Eucalyptus trees using secondary metabolites obtained by steam distillation. JOURNAL OF ESSENTIAL OIL RESEARCH 2016. [DOI: 10.1080/10412905.2016.1187674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
24
|
Mori AS, Lertzman KP, Gustafsson L. Biodiversity and ecosystem services in forest ecosystems: a research agenda for applied forest ecology. J Appl Ecol 2016. [DOI: 10.1111/1365-2664.12669] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akira S. Mori
- Graduate School of Environment and Information Sciences; Yokohama National University; Yokohama, Kanagawa 240 8501 Japan
- The Hakai Institute and the School of Resource and Environmental Management; Simon Fraser University; Burnaby BC V5A 1S6 Canada
| | - Kenneth P. Lertzman
- The Hakai Institute and the School of Resource and Environmental Management; Simon Fraser University; Burnaby BC V5A 1S6 Canada
| | - Lena Gustafsson
- Department of Ecology; Swedish University of Agricultural Sciences; Box 7044 750 07 Uppsala Sweden
| |
Collapse
|
25
|
Biotechnological strategies for studying actinorhizal symbiosis in Casuarinaceae: transgenesis and beyond. Symbiosis 2016. [DOI: 10.1007/s13199-016-0400-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
26
|
Ke Q, Wang Z, Ji CY, Jeong JC, Lee HS, Li H, Xu B, Deng X, Kwak SS. Transgenic poplar expressing codA exhibits enhanced growth and abiotic stress tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 100:75-84. [PMID: 26795732 DOI: 10.1016/j.plaphy.2016.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/05/2016] [Accepted: 01/11/2016] [Indexed: 05/20/2023]
Abstract
Glycine betaine (GB), a compatible solute, effectively stabilizes the structure and function of macromolecules and enhances abiotic stress tolerance in plants. We generated transgenic poplar plants (Populus alba × Populus glandulosa) expressing a bacterial choline oxidase (codA) gene under the control of the oxidative stress-inducible SWPA2 promoter (referred to as SC plants). Among the 13 SC plants generated, three lines (SC4, SC14 and SC21) were established based on codA transcript levels, tolerance to methyl viologen-mediated oxidative stress and Southern blot analysis. Growth was better in SC plants than in non-transgenic (NT) plants, which was related to elevated transcript levels of auxin-response genes. SC plants accumulated higher levels of GB under oxidative stress compared to the NT plants. In addition, SC plants exhibited increased tolerance to drought and salt stress, which was associated with increased efficiency of photosystem II activity. Finally, SC plants maintained lower levels of ion leakage and reactive oxygen species under cold stress compared to the NT plants. These observations suggest that SC plants might be useful for reforestation on global marginal lands, including desertification and reclaimed areas.
Collapse
Affiliation(s)
- Qingbo Ke
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, 305-350, South Korea
| | - Zhi Wang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A & F University, Yangling, Shaanxi, 712100, PR China
| | - Chang Yoon Ji
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, 305-350, South Korea
| | - Jae Cheol Jeong
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, 305-350, South Korea
| | - Haeng-Soon Lee
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, 305-350, South Korea
| | - Hongbing Li
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A & F University, Yangling, Shaanxi, 712100, PR China
| | - Bingcheng Xu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A & F University, Yangling, Shaanxi, 712100, PR China
| | - Xiping Deng
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A & F University, Yangling, Shaanxi, 712100, PR China
| | - Sang-Soo Kwak
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, 305-350, South Korea.
| |
Collapse
|
27
|
A Comparative Analysis of Consumers’ Potential Purchasing Behaviour Towards Transgenic-Derived Forest Products: The Greek Case. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/978-94-017-7531-1_13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
|
28
|
Kazana V, Tsourgiannis L, Iakovoglou V, Stamatiou C, Alexandrov A, Araújo S, Bogdan S, Božič G, Brus R, Bossinger G, Boutsimea A, Ćelepirović N, Cvrčková H, Fladung M, Ivanković M, Kazaklis A, Koutsona P, Luthar Z, Máchová P, Malá J, Mara K, Mataruga M, Moravcikova J, Paffetti D, Paiva JAP, Raptis D, Sanchez C, Sharry S, Salaj T, Šijačić-Nikolić M, Tel-Zur N, Tsvetkov I, Vettori C, Vidal N. Public Knowledge and Perceptions of Safety Issues Towards the Use of Genetically Modified Forest Trees: A Cross-Country Pilot Survey. BIOSAFETY OF FOREST TRANSGENIC TREES 2016. [DOI: 10.1007/978-94-017-7531-1_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
29
|
Huang J, Smith AR, Zhang T, Zhao D. Creating Completely Both Male and Female Sterile Plants by Specifically Ablating Microspore and Megaspore Mother Cells. FRONTIERS IN PLANT SCIENCE 2016; 7:30. [PMID: 26870055 PMCID: PMC4740954 DOI: 10.3389/fpls.2016.00030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/10/2016] [Indexed: 05/20/2023]
Abstract
Although genetically modified (GM) plants have improved commercially important traits, such as biomass and biofuel production, digestibility, bioremediation, ornamental value, and tolerance to biotic and abiotic stresses, there remain economic, political, or social concerns over potential ecological effects of transgene flow from GM plants. The current solution for preventing transgene flow from GM plants is genetically engineering sterility; however, approaches to generating both male and female sterility are limited. In addition, existing strategies for creating sterility lead to loss or modifications of entire flowers or floral organs. Here, we demonstrate that instead of the 1.5-kb promoter, the entire SOLO DANCERS (SDS) gene is required for its meiocyte-specific expression. We then developed an efficient method to specifically ablate microspore and megaspore mother cells using the SDS and BARNASE fusion gene, which resulted in complete sterility in both male and female reproductive organs in Arabidopsis (Arabidopsis thaliana) and tobacco (Nicotiana tabacum), but did not affect plant growth or development, including the formation of all flower organs. Therefore, our research provides a general and effective tool to prevent transgene flow in GM plants.
Collapse
|
30
|
Teskey R, Wertin T, Bauweraerts I, Ameye M, McGuire MA, Steppe K. Responses of tree species to heat waves and extreme heat events. PLANT, CELL & ENVIRONMENT 2015; 38:1699-712. [PMID: 25065257 DOI: 10.1111/pce.12417] [Citation(s) in RCA: 204] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 07/08/2014] [Accepted: 07/10/2014] [Indexed: 05/05/2023]
Abstract
The number and intensity of heat waves has increased, and this trend is likely to continue throughout the 21st century. Often, heat waves are accompanied by drought conditions. It is projected that the global land area experiencing heat waves will double by 2020, and quadruple by 2040. Extreme heat events can impact a wide variety of tree functions. At the leaf level, photosynthesis is reduced, photooxidative stress increases, leaves abscise and the growth rate of remaining leaves decreases. In some species, stomatal conductance increases at high temperatures, which may be a mechanism for leaf cooling. At the whole plant level, heat stress can decrease growth and shift biomass allocation. When drought stress accompanies heat waves, the negative effects of heat stress are exacerbated and can lead to tree mortality. However, some species exhibit remarkable tolerance to thermal stress. Responses include changes that minimize stress on photosynthesis and reductions in dark respiration. Although there have been few studies to date, there is evidence of within-species genetic variation in thermal tolerance, which could be important to exploit in production forestry systems. Understanding the mechanisms of differing tree responses to extreme temperature events may be critically important for understanding how tree species will be affected by climate change.
Collapse
Affiliation(s)
- Robert Teskey
- Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, 30602, USA
| | - Timothy Wertin
- Institute for Genomic Biology, University of Illinois, Urbana, IL, 61801, USA
| | - Ingvar Bauweraerts
- Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, B-9000, Belgium
| | - Maarten Ameye
- Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, Ghent, B-9000, Belgium
| | - Mary Anne McGuire
- Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, 30602, USA
| | - Kathy Steppe
- Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, B-9000, Belgium
| |
Collapse
|
31
|
Polle A, Chen S. On the salty side of life: molecular, physiological and anatomical adaptation and acclimation of trees to extreme habitats. PLANT, CELL & ENVIRONMENT 2015; 38:1794-816. [PMID: 25159181 DOI: 10.1111/pce.12440] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 08/11/2014] [Accepted: 08/17/2014] [Indexed: 05/04/2023]
Abstract
Saline and sodic soils that cannot be used for agriculture occur worldwide. Cultivating stress-tolerant trees to obtain biomass from salinized areas has been suggested. Various tree species of economic importance for fruit, fibre and timber production exhibit high salinity tolerance. Little is known about the mechanisms enabling tree crops to cope with high salinity for extended periods. Here, the molecular, physiological and anatomical adjustments underlying salt tolerance in glycophytic and halophytic model tree species, such as Populus euphratica in terrestrial habitats, and mangrove species along coastlines are reviewed. Key mechanisms that have been identified as mediating salt tolerance are discussed at scales from the genetic to the morphological level, including leaf succulence and structural adjustments of wood anatomy. The genetic and transcriptomic bases for physiological salt acclimation are salt sensing and signalling networks that activate target genes; the target genes keep reactive oxygen species under control, maintain the ion balance and restore water status. Evolutionary adaptation includes gene duplication in these pathways. Strategies for and limitations to tree improvement, particularly transgenic approaches for increasing salt tolerance by transforming trees with single and multiple candidate genes, are discussed.
Collapse
Affiliation(s)
- Andrea Polle
- Forstbotanik und Baumphysiologie, Büsgen-Institut, Georg-August Universität Göttingen, Göttingen, 37077, Germany
| | - Shaoliang Chen
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| |
Collapse
|
32
|
Shen Z, Sun J, Yao J, Wang S, Ding M, Zhang H, Qian Z, Zhao N, Sa G, Zhao R, Shen X, Polle A, Chen S. High rates of virus-induced gene silencing by tobacco rattle virus in Populus. TREE PHYSIOLOGY 2015; 35:1016-1029. [PMID: 26209619 DOI: 10.1093/treephys/tpv064] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 06/06/2015] [Indexed: 05/23/2023]
Abstract
Virus-induced gene silencing (VIGS) has been shown to be an effective tool for investigating gene functions in herbaceous plant species, but has rarely been tested in trees. The establishment of a fast and reliable transformation system is especially important for woody plants, many of which are recalcitrant to transformation. In this study, we established a tobacco rattle virus (TRV)-based VIGS system for two Populus species, Populus euphratica and P. × canescens. Here, TRV constructs carrying a 266 bp or a 558 bp fragment of the phytoene desaturase (PDS) gene were Agrobacterium-infiltrated into leaves of the two poplar species. Agrobacterium-mediated delivery of the shorter insert, TRV2-PePDS266, into the host poplars resulted in expected photobleaching in both tree species, but not the longer insert, PePDS558. The efficiency of VIGS was temperature-dependent, increasing by raising the temperature from 18 to 28 °C. The optimized TRV-VIGS system at 28 °C resulted in a high silencing frequency and efficiency up to 65-73 and 83-94%, respectively, in the two tested poplars. Moreover, syringe inoculation of Agrobacterium in 100 mM acetosyringone induced a more efficient silencing in the two poplar species, compared with other agroinfiltration methods, e.g., direct injection, misting and agrodrench. There were plant species-related differences in the response to VIGS because the photobleaching symptoms were more severe in P. × canescens than in P. euphratica. Furthermore, VIGS-treated P. euphratica exhibited a higher recovery rate (50%) after several weeks of the virus infection, compared with TRV-infected P. × canescens plants (20%). Expression stability of reference genes was screened to assess the relative abundance of PePDS mRNA in VIGS-treated P. euphratica and P. × canescens. PeACT7 was stably expressed in P. euphratica and UBQ-L was selected as the most suitable reference gene for P. × canescens using three different statistical approaches, geNorm, NormFinder and BestKeeper. Quantitative real-time PCR showed significant reductions in PDS transcripts (55-64%) in the photobleached leaves of both VIGS-treated poplar species. Our results demonstrate that the TRV-based VIGS provides a practical tool for gene functional analysis in Populus sp., especially in those poplar species which are otherwise recalcitrant to transformation.
Collapse
Affiliation(s)
- Zedan Shen
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Jian Sun
- College of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, P.R. China
| | - Jun Yao
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Shaojie Wang
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Mingquan Ding
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Huilong Zhang
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Zeyong Qian
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Nan Zhao
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Gang Sa
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Rui Zhao
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Xin Shen
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| | - Andrea Polle
- Forstbotanik und Baumphysiologie, Büsgen-Institut, Georg-August Universität Göttingen, Göttingen 37077, Germany
| | - Shaoliang Chen
- College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, P.R. China
| |
Collapse
|
33
|
Ke Q, Wang Z, Ji CY, Jeong JC, Lee HS, Li H, Xu B, Deng X, Kwak SS. Transgenic poplar expressing Arabidopsis YUCCA6 exhibits auxin-overproduction phenotypes and increased tolerance to abiotic stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 94:19-27. [PMID: 25980973 DOI: 10.1016/j.plaphy.2015.05.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/04/2015] [Accepted: 05/08/2015] [Indexed: 05/04/2023]
Abstract
YUCCA6, a member of the YUCCA family of flavin monooxygenase-like proteins, is involved in the tryptophan-dependent IAA biosynthesis pathway and responses to environmental cues in Arabidopsis. However, little is known about the role of the YUCCA pathway in auxin biosynthesis in poplar. Here, we generated transgenic poplar (Populus alba × P. glandulosa) expressing the Arabidopsis YUCCA6 gene under the control of the oxidative stress-inducible SWPA2 promoter (referred to as SY plants). Three SY lines (SY7, SY12 and SY20) were selected based on the levels of AtYUCCA6 transcript. SY plants displayed auxin-overproduction morphological phenotypes, such as rapid shoot growth and retarded main root development with increased root hair formation. In addition, SY plants had higher levels of free IAA and early auxin-response gene transcripts. SY plants exhibited tolerance to drought stress, which was associated with reduced levels of reactive oxygen species. Furthermore, SY plants showed delayed hormone- and dark-induced senescence in detached leaves due to higher photosystem II efficiency and less membrane permeability. These results suggest that the conserved IAA biosynthesis pathway mediated by YUCCA family members exists in poplar.
Collapse
Affiliation(s)
- Qingbo Ke
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon 305-350, South Korea
| | - Zhi Wang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Chang Yoon Ji
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon 305-350, South Korea
| | - Jae Cheol Jeong
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon 305-350, South Korea
| | - Haeng-Soon Lee
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon 305-350, South Korea
| | - Hongbing Li
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Bingcheng Xu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xiping Deng
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Sang-Soo Kwak
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, South Korea; Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon 305-350, South Korea.
| |
Collapse
|
34
|
Abstract
The genetic enhancement of wild animals and plants for characteristics that benefit human populations has been practiced for thousands of years, resulting in impressive improvements in commercially valuable species. Despite these benefits, genetic manipulations are rarely considered for noncommercial purposes, such as conservation and restoration initiatives. Over the last century, humans have driven global climate change through industrialization and the release of increasing amounts of CO2, resulting in shifts in ocean temperature, ocean chemistry, and sea level, as well as increasing frequency of storms, all of which can profoundly impact marine ecosystems. Coral reefs are highly diverse ecosystems that have suffered massive declines in health and abundance as a result of these and other direct anthropogenic disturbances. There is great concern that the high rates, magnitudes, and complexity of environmental change are overwhelming the intrinsic capacity of corals to adapt and survive. Although it is important to address the root causes of changing climate, it is also prudent to explore the potential to augment the capacity of reef organisms to tolerate stress and to facilitate recovery after disturbances. Here, we review the risks and benefits of the improvement of natural and commercial stocks in noncoral reef systems and advocate a series of experiments to determine the feasibility of developing coral stocks with enhanced stress tolerance through the acceleration of naturally occurring processes, an approach known as (human)-assisted evolution, while at the same time initiating a public dialogue on the risks and benefits of this approach.
Collapse
|
35
|
Exotic Eucalyptus plantations in the southeastern US: risk assessment, management and policy approaches. Biol Invasions 2015. [DOI: 10.1007/s10530-015-0844-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
36
|
Newhouse AE, Polin-McGuigan LD, Baier KA, Valletta KER, Rottmann WH, Tschaplinski TJ, Maynard CA, Powell WA. Transgenic American chestnuts show enhanced blight resistance and transmit the trait to T1 progeny. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2014; 228:88-97. [PMID: 25438789 DOI: 10.1016/j.plantsci.2014.04.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 04/01/2014] [Accepted: 04/03/2014] [Indexed: 05/24/2023]
Abstract
American chestnut (Castanea dentata) is a classic example of a native keystone species that was nearly eradicated by an introduced fungal pathogen. This report describes progress made toward producing a fully American chestnut tree with enhanced resistance to the blight fungus (Cryphonectria parasitica). The transgenic American chestnut 'Darling4,' produced through an Agrobacterium co-transformation procedure to express a wheat oxalate oxidase gene driven by the VspB vascular promoter, shows enhanced blight resistance at a level intermediate between susceptible American chestnut and resistant Chinese chestnut (Castanea mollissima). Enhanced resistance was identified first with a leaf-inoculation assay using young chestnuts grown indoors, and confirmed with traditional stem inoculations on 3- and 4-year-old field-grown trees. Pollen from 'Darling4' and other events was used to produce transgenic T1 seedlings, which also expressed the enhanced resistance trait in leaf assays. Outcrossed transgenic seedlings have several advantages over tissue-cultured plantlets, including increased genetic diversity and faster initial growth. This represents a major step toward the restoration of the majestic American chestnut.
Collapse
Affiliation(s)
- Andrew E Newhouse
- State University of New York College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
| | - Linda D Polin-McGuigan
- State University of New York College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
| | - Kathleen A Baier
- State University of New York College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
| | - Kristia E R Valletta
- State University of New York College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
| | | | | | - Charles A Maynard
- State University of New York College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
| | - William A Powell
- State University of New York College of Environmental Science & Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA.
| |
Collapse
|
37
|
Harfouche A, Meilan R, Altman A. Molecular and physiological responses to abiotic stress in forest trees and their relevance to tree improvement. TREE PHYSIOLOGY 2014; 34:1181-98. [PMID: 24695726 DOI: 10.1093/treephys/tpu012] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Abiotic stresses, such as drought, salinity and cold, are the major environmental stresses that adversely affect tree growth and, thus, forest productivity, and play a major role in determining the geographic distribution of tree species. Tree responses and tolerance to abiotic stress are complex biological processes that are best analyzed at a systems level using genetic, genomic, metabolomic and phenomic approaches. This will expedite the dissection of stress-sensing and signaling networks to further support efficient genetic improvement programs. Enormous genetic diversity for stress tolerance exists within some forest-tree species, and due to advances in sequencing technologies the molecular genetic basis for this diversity has been rapidly unfolding in recent years. In addition, the use of emerging phenotyping technologies extends the suite of traits that can be measured and will provide us with a better understanding of stress tolerance. The elucidation of abiotic stress-tolerance mechanisms will allow for effective pyramiding of multiple tolerances in a single tree through genetic engineering. Here we review recent progress in the dissection of the molecular basis of abiotic stress tolerance in forest trees, with special emphasis on Populus, Pinus, Picea, Eucalyptus and Quercus spp. We also outline practices that will enable the deployment of trees engineered for abiotic stress tolerance to land owners. Finally, recommendations for future work are discussed.
Collapse
Affiliation(s)
- Antoine Harfouche
- Department for Innovation in Biological, Agro-food and Forest systems, University of Tuscia, Via S. Camillo de Lellis, Viterbo 01100, Italy
| | - Richard Meilan
- Department of Forestry and Natural Resources, Purdue University, 715 West State Street, West Lafayette, IN 47907-2061, USA
| | - Arie Altman
- Faculty of Agricultural, Food and Environmental Quality Sciences, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 76100, Israel
| |
Collapse
|
38
|
Wang B, Wang RR, Cui ZH, Bi WL, Li JW, Li BQ, Ozudogru EA, Volk GM, Wang QC. Potential applications of cryogenic technologies to plant genetic improvement and pathogen eradication. Biotechnol Adv 2014; 32:583-95. [DOI: 10.1016/j.biotechadv.2014.03.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 01/27/2014] [Accepted: 03/13/2014] [Indexed: 01/08/2023]
|
39
|
Roe AD, MacQuarrie CJK, Gros-Louis MC, Simpson JD, Lamarche J, Beardmore T, Thompson SL, Tanguay P, Isabel N. Fitness dynamics within a poplar hybrid zone: II. Impact of exotic sex on native poplars in an urban jungle. Ecol Evol 2014; 4:1876-89. [PMID: 24963382 PMCID: PMC4063481 DOI: 10.1002/ece3.1028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 12/20/2013] [Accepted: 12/31/2013] [Indexed: 01/11/2023] Open
Abstract
Trees bearing novel or exotic gene components are poised to contribute to the bioeconomy for a variety of purposes such as bioenergy production, phytoremediation, and carbon sequestration within the forestry sector, but sustainable release of trees with novel traits in large-scale plantations requires the quantification of risks posed to native tree populations. Over the last century, exotic hybrid poplars produced through artificial crosses were planted throughout eastern Canada as ornamentals or windbreaks and these exotics provide a proxy by which to examine the fitness of exotic poplar traits within the natural environment to assess risk of exotic gene escape, establishment, and spread into native gene pools. We assessed postzygotic fitness traits of native and exotic poplars within a naturally regenerated stand in eastern Canada (Quebec City, QC). Pure natives (P. balsamifera and P. deltoides spp. deltoides), native hybrids (P. deltoides × P. balsamifera), and exotic hybrids (trees bearing Populus nigra and P. maximowiczii genetic components) were screened for reproductive biomass, yield, seed germination, and fungal disease susceptibility. Exotic hybrids expressed fitness traits intermediate to pure species and were not significantly different from native hybrids. They formed fully viable seed and backcrossed predominantly with P. balsamifera. These data show that exotic hybrids were not unfit and were capable of establishing and competing within the native stand. Future research will seek to examine the impact of exotic gene regions on associated biotic communities to fully quantify the risk exotic poplars pose to native poplar forests.
Collapse
Affiliation(s)
- Amanda D Roe
- Natural Resources Canada, Canadian Forest ServiceQuébec, Québec, Canada
- Natural Resources Canada, Canadian Forest ServiceSault Ste. Marie, Ontario, Canada
| | - Chris JK MacQuarrie
- Natural Resources Canada, Canadian Forest ServiceSault Ste. Marie, Ontario, Canada
| | | | - J Dale Simpson
- Natural Resources Canada, Canadian Forest ServiceFredericton, New-Brunswick, Canada
| | - Josyanne Lamarche
- Natural Resources Canada, Canadian Forest ServiceSault Ste. Marie, Ontario, Canada
| | - Tannis Beardmore
- Natural Resources Canada, Canadian Forest ServiceFredericton, New-Brunswick, Canada
| | - Stacey L Thompson
- Natural Resources Canada, Canadian Forest ServiceQuébec, Québec, Canada
- Umeå University, Department of Ecology and Environmental Science, Umeå Plant Science CentreUmeå, Sweden
| | - Philippe Tanguay
- Natural Resources Canada, Canadian Forest ServiceQuébec, Québec, Canada
| | - Nathalie Isabel
- Natural Resources Canada, Canadian Forest ServiceQuébec, Québec, Canada
| |
Collapse
|
40
|
Merino I, Contreras A, Jing ZP, Gallardo F, Cánovas FM, Gómez L. Plantation forestry under global warming: hybrid poplars with improved thermotolerance provide new insights on the in vivo function of small heat shock protein chaperones. PLANT PHYSIOLOGY 2014; 164:978-91. [PMID: 24306533 PMCID: PMC3912120 DOI: 10.1104/pp.113.225730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 12/02/2013] [Indexed: 05/22/2023]
Abstract
Climate-driven heat stress is a key factor affecting forest plantation yields. While its effects are expected to worsen during this century, breeding more tolerant genotypes has proven elusive. We report here a substantial and durable increase in the thermotolerance of hybrid poplar (Populus tremula×Populus alba) through overexpression of a major small heat shock protein (sHSP) with convenient features. Experimental evidence was obtained linking protective effects in the transgenic events with the unique chaperone activity of sHSPs. In addition, significant positive correlations were observed between phenotype strength and heterologous sHSP accumulation. The remarkable baseline levels of transgene product (up to 1.8% of total leaf protein) have not been reported in analogous studies with herbaceous species. As judged by protein analyses, such an accumulation is not matched either by endogenous sHSPs in both heat-stressed poplar plants and field-grown adult trees. Quantitative real time-polymerase chain reaction analyses supported these observations and allowed us to identify the poplar members most responsive to heat stress. Interestingly, sHSP overaccumulation was not associated with pleiotropic effects that might decrease yields. The poplar lines developed here also outperformed controls under in vitro and ex vitro culture conditions (callus biomass, shoot production, and ex vitro survival), even in the absence of thermal stress. These results reinforce the feasibility of improving valuable genotypes for plantation forestry, a field where in vitro recalcitrance, long breeding cycles, and other practical factors constrain conventional genetic approaches. They also provide new insights into the biological functions of the least understood family of heat shock protein chaperones.
Collapse
|
41
|
Telem RS, Wani SH, Singh NB, Nandini R, Sadhukhan R, Bhattacharya S, Mandal N. Cisgenics - a sustainable approach for crop improvement. Curr Genomics 2014; 14:468-76. [PMID: 24396278 PMCID: PMC3867722 DOI: 10.2174/13892029113146660013] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 08/28/2013] [Accepted: 08/30/2013] [Indexed: 11/22/2022] Open
Abstract
The implication of molecular biology in crop improvement is now more than three decades old. Not surprisingly, technology has moved on, and there are a number of new techniques that may or may not come under the genetically modified (GM) banner and, therefore, GM regulations. In cisgenic technology, cisgenes from crossable plants are used and it is a single procedure of gene introduction whereby the problem of linkage drag of other genes is overcome. The gene used in cisgenic approach is similar compared with classical breeding and cisgenic plant should be treated equally as classically bred plant and differently from transgenic plants. Therefore, it offers a sturdy reference to treat cisgenic plants similarly as classically bred plants, by exemption of cisgenesis from the current GMO legislations. This review covers the implications of cisgenesis towards the sustainable development in the genetic improvement of crops and considers the prospects for the technology.
Collapse
Affiliation(s)
- R S Telem
- Department of Genetics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal-741252, India
| | - Shabir H Wani
- Department of Genetics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal-741252, India
| | - N B Singh
- Department of Plant Breeding & Genetics, COA, CAU, Imphal, Manipur -795004, India
| | - R Nandini
- Department of Genetics & Plant Breeding, UAS, GKVK, Bengaluru, Karnataka -560065, India
| | - R Sadhukhan
- Department of Genetics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal-741252, India
| | - S Bhattacharya
- Department of Genetics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal-741252, India
| | - N Mandal
- Department of Biotechnology, Instrumentation & Environmental Science, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal-741252, India
| |
Collapse
|
42
|
Scientific Research Related to Genetically Modified Trees. CHALLENGES AND OPPORTUNITIES FOR THE WORLD'S FORESTS IN THE 21ST CENTURY 2014. [DOI: 10.1007/978-94-007-7076-8_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
43
|
Rai MK, Shekhawat NS. Recent advances in genetic engineering for improvement of fruit crops. PLANT CELL, TISSUE AND ORGAN CULTURE (PCTOC) 2014; 116:1-15. [PMID: 0 DOI: 10.1007/s11240-013-0389-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 09/30/2013] [Indexed: 05/24/2023]
|
44
|
de Borst K, Bader TK. Structure-function relationships in hardwood--insight from micromechanical modelling. J Theor Biol 2013; 345:78-91. [PMID: 24365634 DOI: 10.1016/j.jtbi.2013.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/09/2013] [Accepted: 12/14/2013] [Indexed: 11/15/2022]
Abstract
A micromechanical model is presented that predicts the stiffness of wood tissues in their three principal anatomical directions, across various hardwood species. The wood polymers cellulose, hemicellulose, and lignin, common to all wood tissues, serve as the starting point. In seven homogenisation steps, the stiffnesses of these polymers are linked to the macroscopic stiffness. The good agreement of model predictions and corresponding experimental data for ten different European and tropical species confirms the functionality and accuracy of the model. The model enables investigating the influence of individual microstructural features on the overall stiffness. This is exploited to elucidate the mechanical effects of vessels and ray cells. Vessels are shown to reduce the stiffness of wood at constant overall density. This supports that a trade-off exists between the hydraulic efficiency and the mechanical support in relation to the anatomical design of wood. Ray cells are shown to act as reinforcing elements in the radial direction.
Collapse
Affiliation(s)
- K de Borst
- University of Glasgow, School of Engineering, Rankine Building, Oakfield Avenue, Glasgow G128LT, United Kingdom.
| | - T K Bader
- Vienna University of Technology, Institute for Mechanics of Materials and Structures, Karlsplatz 13/202. 1040 Vienna, Austria.
| |
Collapse
|
45
|
Dubouzet JG, Strabala TJ, Wagner A. Potential transgenic routes to increase tree biomass. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2013; 212:72-101. [PMID: 24094056 DOI: 10.1016/j.plantsci.2013.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 08/21/2013] [Accepted: 08/22/2013] [Indexed: 05/05/2023]
Abstract
Biomass is a prime target for genetic engineering in forestry because increased biomass yield will benefit most downstream applications such as timber, fiber, pulp, paper, and bioenergy production. Transgenesis can increase biomass by improving resource acquisition and product utilization and by enhancing competitive ability for solar energy, water, and mineral nutrients. Transgenes that affect juvenility, winter dormancy, and flowering have been shown to influence biomass as well. Transgenic approaches have increased yield potential by mitigating the adverse effects of prevailing stress factors in the environment. Simultaneous introduction of multiple genes for resistance to various stress factors into trees may help forest trees cope with multiple or changing environments. We propose multi-trait engineering for tree crops, simultaneously deploying multiple independent genes to address a set of genetically uncorrelated traits that are important for crop improvement. This strategy increases the probability of unpredictable (synergistic or detrimental) interactions that may substantially affect the overall phenotype and its long-term performance. The very limited ability to predict the physiological processes that may be impacted by such a strategy requires vigilance and care during implementation. Hence, we recommend close monitoring of the resultant transgenic genotypes in multi-year, multi-location field trials.
Collapse
|
46
|
Häggman H, Raybould A, Borem A, Fox T, Handley L, Hertzberg M, Lu MZ, Macdonald P, Oguchi T, Pasquali G, Pearson L, Peter G, Quemada H, Séguin A, Tattersall K, Ulian E, Walter C, McLean M. Genetically engineered trees for plantation forests: key considerations for environmental risk assessment. PLANT BIOTECHNOLOGY JOURNAL 2013; 11:785-98. [PMID: 23915092 PMCID: PMC3823068 DOI: 10.1111/pbi.12100] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/18/2013] [Accepted: 06/23/2013] [Indexed: 05/18/2023]
Abstract
Forests are vital to the world's ecological, social, cultural and economic well-being yet sustainable provision of goods and services from forests is increasingly challenged by pressures such as growing demand for wood and other forest products, land conversion and degradation, and climate change. Intensively managed, highly productive forestry incorporating the most advanced methods for tree breeding, including the application of genetic engineering (GE), has tremendous potential for producing more wood on less land. However, the deployment of GE trees in plantation forests is a controversial topic and concerns have been particularly expressed about potential harms to the environment. This paper, prepared by an international group of experts in silviculture, forest tree breeding, forest biotechnology and environmental risk assessment (ERA) that met in April 2012, examines how the ERA paradigm used for GE crop plants may be applied to GE trees for use in plantation forests. It emphasizes the importance of differentiating between ERA for confined field trials of GE trees, and ERA for unconfined or commercial-scale releases. In the case of the latter, particular attention is paid to characteristics of forest trees that distinguish them from shorter-lived plant species, the temporal and spatial scale of forests, and the biodiversity of the plantation forest as a receiving environment.
Collapse
Affiliation(s)
- Hely Häggman
- Department of Biology, University of OuluOulu, Finland
| | - Alan Raybould
- Syngenta Jealott's Hill International Research CentreBracknell, UK
| | - Aluizio Borem
- Departamento de Fitotecnia, Universidade Federal de ViçosaViçosa, Brazil
| | - Thomas Fox
- Department of Forest Resources and Environmental Conservation, Virginia Polytechnic Institute and State UniversityBlacksburg, VA, USA
| | - Levis Handley
- Biotechnology Regulatory Services, United States Department of AgricultureRiverdale, MD, USA
| | | | - Meng-Zu Lu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of ForestryBeijing, China
| | - Philip Macdonald
- Plant and Biotechnology Risk Assessment, Canadian Food Inspection AgencyOttawa, ON, Canada
| | - Taichi Oguchi
- Gene Research Center, University of TsukubaTsukuba, Japan
| | - Giancarlo Pasquali
- Centro de Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil
| | | | - Gary Peter
- School of Forest Resources and Conservation, University of FloridaGainesville, FL, USA
| | | | | | | | | | | | - Morven McLean
- Center for Environmental Risk AssessmentWashington, DC, USA
| |
Collapse
|
47
|
Canales-Pastrana RR, Paredes M. Phytoremediation Dynamic Model as an Assessment Tool in the Environmental Management. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojapps.2013.32028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
48
|
Kovalchuk A, Keriö S, Oghenekaro AO, Jaber E, Raffaello T, Asiegbu FO. Antimicrobial defenses and resistance in forest trees: challenges and perspectives in a genomic era. ANNUAL REVIEW OF PHYTOPATHOLOGY 2013; 51:221-44. [PMID: 23682916 DOI: 10.1146/annurev-phyto-082712-102307] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Molecular pathology of forest trees for a long time lagged behind parallel studies on agricultural crop pathology. Recent technological advances have significantly contributed to the observed progress in this field. The first powerful impulse was provided by the completion of the black cottonwood genome sequence in 2006. Genomes of several other important tree species will be completed within a short time. Simultaneously, application of transcriptomics and next-generation sequencing (NGS) has resulted in the rapid accumulation of a vast amount of data on molecular interactions between trees and their microbial parasites. This review provides an overview of our current knowledge about these responses of forest trees to their pathogens, highlighting the achievements of the past decade, discussing the current state of the field, and emphasizing the prospects and challenges for the near future.
Collapse
Affiliation(s)
- Andriy Kovalchuk
- Department of Forest Sciences, Forest Pathology Research Laboratory, University of Helsinki, 00014 Helsinki, Finland.
| | | | | | | | | | | |
Collapse
|
49
|
Daoutidis P, Marvin WA, Rangarajan S, Torres AI. Engineering Biomass Conversion Processes: A Systems Perspective. AIChE J 2012. [DOI: 10.1002/aic.13978] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Prodromos Daoutidis
- Dept. of Chemical Engineering and Materials Science; University of Minnesota; Minneapolis; MN; 55455
| | - W. Alex Marvin
- Dept. of Chemical Engineering and Materials Science; University of Minnesota; Minneapolis; MN; 55455
| | - Srinivas Rangarajan
- Dept. of Chemical Engineering and Materials Science; University of Minnesota; Minneapolis; MN; 55455
| | - Ana I. Torres
- Dept. of Chemical Engineering and Materials Science; University of Minnesota; Minneapolis; MN; 55455
| |
Collapse
|
50
|
Agrobacterium tumefaciens-mediated transformation of Phellodendron amurense Rupr. using mature-seed explants. Mol Biol Rep 2012; 40:281-8. [DOI: 10.1007/s11033-012-2059-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Accepted: 10/03/2012] [Indexed: 10/27/2022]
|