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Boland DJ, Cornejo-Corona I, Browne DR, Murphy RL, Mullet J, Okada S, Devarenne TP. Reclassification of Botryococcus braunii chemical races into separate species based on a comparative genomics analysis. PLoS One 2024; 19:e0304144. [PMID: 39074348 DOI: 10.1371/journal.pone.0304144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 05/07/2024] [Indexed: 07/31/2024] Open
Abstract
The colonial green microalga Botryococcus braunii is well known for producing liquid hydrocarbons that can be utilized as biofuel feedstocks. B. braunii is taxonomically classified as a single species made up of three chemical races, A, B, and L, that are mainly distinguished by the hydrocarbons produced. We previously reported a B race draft nuclear genome, and here we report the draft nuclear genomes for the A and L races. A comparative genomic study of the three B. braunii races and 14 other algal species within Chlorophyta revealed significant differences in the genomes of each race of B. braunii. Phylogenomically, there was a clear divergence of the three races with the A race diverging earlier than both the B and L races, and the B and L races diverging from a later common ancestor not shared by the A race. DNA repeat content analysis suggested the B race had more repeat content than the A or L races. Orthogroup analysis revealed the B. braunii races displayed more gene orthogroup diversity than three closely related Chlamydomonas species, with nearly 24-36% of all genes in each B. braunii race being specific to each race. This analysis suggests the three races are distinct species based on sufficient differences in their respective genomes. We propose reclassification of the three chemical races to the following species names: Botryococcus alkenealis (A race), Botryococcus braunii (B race), and Botryococcus lycopadienor (L race).
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Affiliation(s)
- Devon J Boland
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, United States of America
- Texas A&M Institute for Genome Sciences & Society (TIGSS), College Station, Texas, United States of America
| | - Ivette Cornejo-Corona
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, United States of America
| | - Daniel R Browne
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, United States of America
- AI & Computational Biology, LanzaTech Inc., Skokie, Illinois, United States of America
| | - Rebecca L Murphy
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, United States of America
- Biology Department, Centenary College of Louisiana, Shreveport, Louisiana, United States of America
| | - John Mullet
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, United States of America
| | - Shigeru Okada
- Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo, Tokyo, Japan
| | - Timothy P Devarenne
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, United States of America
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Çiftçi O, Zervas A, Lutz S, Feord H, Keusching C, Leya T, Tranter M, Anesio AM, Benning LG. Long-Read-Based Hybrid Genome Assembly and Annotation of Snow Algal Strain CCCryo 101-99 (cf. Sphaerocystis sp., Chlamydomonadales). Genome Biol Evol 2024; 16:evae140. [PMID: 38941446 PMCID: PMC11247165 DOI: 10.1093/gbe/evae140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/11/2024] [Accepted: 06/20/2024] [Indexed: 06/30/2024] Open
Abstract
Polar regions harbor a diversity of cold-adapted (cryophilic) algae, which can be categorized into psychrophilic (obligate cryophilic) and cryotrophic (nonobligate cryophilic) snow algae. Both can accumulate significant biomasses on glacier and snow habitats and play major roles in global climate dynamics. Despite their significance, genomic studies on these organisms remain scarce, hindering our understanding of their evolutionary history and adaptive mechanisms in the face of climate change. Here, we present the draft genome assembly and annotation of the psychrophilic snow algal strain CCCryo 101-99 (cf. Sphaerocystis sp.). The draft haploid genome assembly is 122.5 Mb in length and is represented by 664 contigs with an N50 of 0.86 Mb, a Benchmarking Universal Single-Copy Orthologs (BUSCO) completeness of 92.9% (n = 1,519), a maximum contig length of 5.3 Mb, and a guanine-cystosine (GC) content of 53.1%. In total, 28.98% of the genome (35.5 Mb) contains repetitive elements. We identified 417 noncoding RNAs and annotated the chloroplast genome. The predicted proteome comprises 14,805 genes with a BUSCO completeness of 97.8%. Our preliminary analyses reveal a genome with a higher repeat content compared with mesophilic chlorophyte relatives, alongside enrichment in gene families associated with photosynthesis and flagella functions. Our current data will facilitate future comparative studies, improving our understanding of the likely response of polar algae to a warming climate as well as their evolutionary trajectories in permanently cold environments.
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Affiliation(s)
- Ozan Çiftçi
- Interface Geochemistry, GFZ German Research Centre for Geosciences, Potsdam, Germany
| | - Athanasios Zervas
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Stefanie Lutz
- Interface Geochemistry, GFZ German Research Centre for Geosciences, Potsdam, Germany
- Plant-Soil Interactions, Department of Agroecology and Environment, Agroscope, Zurich, Switzerland
| | - Helen Feord
- Interface Geochemistry, GFZ German Research Centre for Geosciences, Potsdam, Germany
| | - Christoph Keusching
- Interface Geochemistry, GFZ German Research Centre for Geosciences, Potsdam, Germany
| | - Thomas Leya
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses IZI-BB, Potsdam, Germany
| | - Martyn Tranter
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Alexandre M Anesio
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Liane G Benning
- Interface Geochemistry, GFZ German Research Centre for Geosciences, Potsdam, Germany
- Department of Earth Sciences, Freie Universität Berlin, Berlin, Germany
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Ochiai KK, Hanawa D, Ogawa HA, Tanaka H, Uesaka K, Edzuka T, Shirae-Kurabayashi M, Toyoda A, Itoh T, Goshima G. Genome sequence and cell biological toolbox of the highly regenerative, coenocytic green feather alga Bryopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1091-1111. [PMID: 38642374 DOI: 10.1111/tpj.16764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 02/10/2024] [Accepted: 03/27/2024] [Indexed: 04/22/2024]
Abstract
Green feather algae (Bryopsidales) undergo a unique life cycle in which a single cell repeatedly executes nuclear division without cytokinesis, resulting in the development of a thallus (>100 mm) with characteristic morphology called coenocyte. Bryopsis is a representative coenocytic alga that has exceptionally high regeneration ability: extruded cytoplasm aggregates rapidly in seawater, leading to the formation of protoplasts. However, the genetic basis of the unique cell biology of Bryopsis remains poorly understood. Here, we present a high-quality assembly and annotation of the nuclear genome of Bryopsis sp. (90.7 Mbp, 27 contigs, N50 = 6.7 Mbp, 14 034 protein-coding genes). Comparative genomic analyses indicate that the genes encoding BPL-1/Bryohealin, the aggregation-promoting lectin, are heavily duplicated in Bryopsis, whereas homologous genes are absent in other ulvophyceans, suggesting the basis of regeneration capability of Bryopsis. Bryopsis sp. possesses >30 kinesins but only a single myosin, which differs from other green algae that have multiple types of myosin genes. Consistent with this biased motor toolkit, we observed that the bidirectional motility of chloroplasts in the cytoplasm was dependent on microtubules but not actin in Bryopsis sp. Most genes required for cytokinesis in plants are present in Bryopsis, including those in the SNARE or kinesin superfamily. Nevertheless, a kinesin crucial for cytokinesis initiation in plants (NACK/Kinesin-7II) is hardly expressed in the coenocytic part of the thallus, possibly underlying the lack of cytokinesis in this portion. The present genome sequence lays the foundation for experimental biology in coenocytic macroalgae.
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Affiliation(s)
- Kanta K Ochiai
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Daiki Hanawa
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan
| | - Harumi A Ogawa
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Hiroyuki Tanaka
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan
| | - Kazuma Uesaka
- Centre for Gene Research, Nagoya University, Nagoya, 464-8602, Japan
| | - Tomoya Edzuka
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Maki Shirae-Kurabayashi
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Atsushi Toyoda
- Comparative Genomics Laboratory, National Institute of Genetics, Mishima, Shizuoka, 411-8540, Japan
- Advanced Genomics Center, National Institute of Genetics, Mishima, Shizuoka, 411-8540, Japan
| | - Takehiko Itoh
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan
| | - Gohta Goshima
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
- Department of Biological Science, Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan
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Dhabalia Ashok A, de Vries S, Darienko T, Irisarri I, de Vries J. Evolutionary assembly of the plant terrestrialization toolkit from protein domains. Proc Biol Sci 2024; 291:20240985. [PMID: 39081174 PMCID: PMC11289646 DOI: 10.1098/rspb.2024.0985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 08/02/2024] Open
Abstract
Land plants (embryophytes) came about in a momentous evolutionary singularity: plant terrestrialization. This event marks not only the conquest of land by plants but also the massive radiation of embryophytes into a diverse array of novel forms and functions. The unique suite of traits present in the earliest land plants is thought to have been ushered in by a burst in genomic novelty. Here, we asked the question of how these bursts were possible. For this, we explored: (i) the initial emergence and (ii) the reshuffling of domains to give rise to hallmark environmental response genes of land plants. We pinpoint that a quarter of the embryophytic genes for stress physiology are specific to the lineage, yet a significant portion of this novelty arises not de novo but from reshuffling and recombining of pre-existing domains. Our data suggest that novel combinations of old genomic substrate shaped the plant terrestrialization toolkit, including hallmark processes in signalling, biotic interactions and specialized metabolism.
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Affiliation(s)
- Amra Dhabalia Ashok
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, Goldschmidtstr. 1, Goettingen37077, Germany
| | - Sophie de Vries
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, Goldschmidtstr. 1, Goettingen37077, Germany
| | - Tatyana Darienko
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, Goldschmidtstr. 1, Goettingen37077, Germany
| | - Iker Irisarri
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, Goldschmidtstr. 1, Goettingen37077, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, Goettingen37077, Germany
- Section Phylogenomics, Centre for Molecular biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change (LIB), Museum of Nature Hamburg, Martin-Luther-King-Platz 3, Hamburg20146, Germany
| | - Jan de Vries
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, Goldschmidtstr. 1, Goettingen37077, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, Goettingen37077, Germany
- Department of Applied Bioinformatics, University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Goldschmidtstr. 1, Goettingen37077, Germany
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Lindsey CR, Knoll AH, Herron MD, Rosenzweig F. Fossil-calibrated molecular clock data enable reconstruction of steps leading to differentiated multicellularity and anisogamy in the Volvocine algae. BMC Biol 2024; 22:79. [PMID: 38600528 PMCID: PMC11007952 DOI: 10.1186/s12915-024-01878-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 04/03/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Throughout its nearly four-billion-year history, life has undergone evolutionary transitions in which simpler subunits have become integrated to form a more complex whole. Many of these transitions opened the door to innovations that resulted in increased biodiversity and/or organismal efficiency. The evolution of multicellularity from unicellular forms represents one such transition, one that paved the way for cellular differentiation, including differentiation of male and female gametes. A useful model for studying the evolution of multicellularity and cellular differentiation is the volvocine algae, a clade of freshwater green algae whose members range from unicellular to colonial, from undifferentiated to completely differentiated, and whose gamete types can be isogamous, anisogamous, or oogamous. To better understand how multicellularity, differentiation, and gametes evolved in this group, we used comparative genomics and fossil data to establish a geologically calibrated roadmap of when these innovations occurred. RESULTS Our ancestral-state reconstructions, show that multicellularity arose independently twice in the volvocine algae. Our chronograms indicate multicellularity evolved during the Carboniferous-Triassic periods in Goniaceae + Volvocaceae, and possibly as early as the Cretaceous in Tetrabaenaceae. Using divergence time estimates we inferred when, and in what order, specific developmental changes occurred that led to differentiated multicellularity and oogamy. We find that in the volvocine algae the temporal sequence of developmental changes leading to differentiated multicellularity is much as proposed by David Kirk, and that multicellularity is correlated with the acquisition of anisogamy and oogamy. Lastly, morphological, molecular, and divergence time data suggest the possibility of cryptic species in Tetrabaenaceae. CONCLUSIONS Large molecular datasets and robust phylogenetic methods are bringing the evolutionary history of the volvocine algae more sharply into focus. Mounting evidence suggests that extant species in this group are the result of two independent origins of multicellularity and multiple independent origins of cell differentiation. Also, the origin of the Tetrabaenaceae-Goniaceae-Volvocaceae clade may be much older than previously thought. Finally, the possibility of cryptic species in the Tetrabaenaceae provides an exciting opportunity to study the recent divergence of lineages adapted to live in very different thermal environments.
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Affiliation(s)
- Charles Ross Lindsey
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Andrew H Knoll
- Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford St., Cambridge, MA, 02138, USA
| | - Matthew D Herron
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Frank Rosenzweig
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
- Parker H. Petit Institute for Bioengineering and Biosciences, Atlanta, GA, 30332, USA.
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Wang B, Jia Y, Dang N, Yu J, Bush SJ, Gao S, He W, Wang S, Guo H, Yang X, Ma W, Ye K. Near telomere-to-telomere genome assemblies of two Chlorella species unveil the composition and evolution of centromeres in green algae. BMC Genomics 2024; 25:356. [PMID: 38600443 PMCID: PMC11005252 DOI: 10.1186/s12864-024-10280-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Centromeres play a crucial and conserved role in cell division, although their composition and evolutionary history in green algae, the evolutionary ancestors of land plants, remains largely unknown. RESULTS We constructed near telomere-to-telomere (T2T) assemblies for two Trebouxiophyceae species, Chlorella sorokiniana NS4-2 and Chlorella pyrenoidosa DBH, with chromosome numbers of 12 and 13, and genome sizes of 58.11 Mb and 53.41 Mb, respectively. We identified and validated their centromere sequences using CENH3 ChIP-seq and found that, similar to humans and higher plants, the centromeric CENH3 signals of green algae display a pattern of hypomethylation. Interestingly, the centromeres of both species largely comprised transposable elements, although they differed significantly in their composition. Species within the Chlorella genus display a more diverse centromere composition, with major constituents including members of the LTR/Copia, LINE/L1, and LINE/RTEX families. This is in contrast to green algae including Chlamydomonas reinhardtii, Coccomyxa subellipsoidea, and Chromochloris zofingiensis, in which centromere composition instead has a pronounced single-element composition. Moreover, we observed significant differences in the composition and structure of centromeres among chromosomes with strong collinearity within the Chlorella genus, suggesting that centromeric sequence evolves more rapidly than sequence in non-centromeric regions. CONCLUSIONS This study not only provides high-quality genome data for comparative genomics of green algae but gives insight into the composition and evolutionary history of centromeres in early plants, laying an important foundation for further research on their evolution.
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Affiliation(s)
- Bo Wang
- School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
- MOE Key Lab for Intelligent Networks & Networks Security, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Yanyan Jia
- School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
- MOE Key Lab for Intelligent Networks & Networks Security, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Ningxin Dang
- School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
- Genome Institute, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jie Yu
- College of Life Sciences, Shanghai Normal University, Shanghai, China
| | - Stephen J Bush
- School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Shenghan Gao
- School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Wenxi He
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Sirui Wang
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Hongtao Guo
- School of Computer Science and Technology, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Xiaofei Yang
- School of Computer Science and Technology, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Weimin Ma
- College of Life Sciences, Shanghai Normal University, Shanghai, China.
| | - Kai Ye
- School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China.
- MOE Key Lab for Intelligent Networks & Networks Security, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China.
- Genome Institute, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China.
- Faculty of Science, Leiden University, Leiden, The Netherlands.
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da Roza PA, Muller H, Sullivan GJ, Walker RSK, Goold HD, Willows RD, Palenik B, Paulsen IT. Chromosome-scale assembly of the streamlined picoeukaryote Picochlorum sp. SENEW3 genome reveals Rabl-like chromatin structure and potential for C 4 photosynthesis. Microb Genom 2024; 10. [PMID: 38625719 DOI: 10.1099/mgen.0.001223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024] Open
Abstract
Genome sequencing and assembly of the photosynthetic picoeukaryotic Picochlorum sp. SENEW3 revealed a compact genome with a reduced gene set, few repetitive sequences, and an organized Rabl-like chromatin structure. Hi-C chromosome conformation capture revealed evidence of possible chromosomal translocations, as well as putative centromere locations. Maintenance of a relatively few selenoproteins, as compared to similarly sized marine picoprasinophytes Mamiellales, and broad halotolerance compared to others in Trebouxiophyceae, suggests evolutionary adaptation to variable salinity environments. Such adaptation may have driven size and genome minimization and have been enabled by the retention of a high number of membrane transporters. Identification of required pathway genes for both CAM and C4 photosynthetic carbon fixation, known to exist in the marine mamiellale pico-prasinophytes and seaweed Ulva, but few other chlorophyte species, further highlights the unique adaptations of this robust alga. This high-quality assembly provides a significant advance in the resources available for genomic investigations of this and other photosynthetic picoeukaryotes.
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Affiliation(s)
- Patrick A da Roza
- ARC Centre of Excellence in Synthetic Biology, Macquarie University, Sydney, NSW 2109, Australia
- School of Natural Sciences, Macquarie University, Sydney, Australia
| | - Héloïse Muller
- Institut Curie, PSL University, Sorbonne Université, CNRS, Nuclear Dynamics, 75005 Paris, France
| | - Geraldine J Sullivan
- ARC Centre of Excellence in Synthetic Biology, Macquarie University, Sydney, NSW 2109, Australia
- School of Natural Sciences, Macquarie University, Sydney, Australia
| | - Roy S K Walker
- ARC Centre of Excellence in Synthetic Biology, Macquarie University, Sydney, NSW 2109, Australia
- School of Natural Sciences, Macquarie University, Sydney, Australia
| | - Hugh D Goold
- ARC Centre of Excellence in Synthetic Biology, Macquarie University, Sydney, NSW 2109, Australia
- New South Wales Department of Primary Industries, Orange, NSW 2800, Australia
| | - Robert D Willows
- School of Natural Sciences, Macquarie University, Sydney, Australia
| | - Brian Palenik
- Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0202, USA
| | - Ian T Paulsen
- ARC Centre of Excellence in Synthetic Biology, Macquarie University, Sydney, NSW 2109, Australia
- School of Natural Sciences, Macquarie University, Sydney, Australia
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Kfoury B, Rodrigues WFC, Kim SJ, Brandizzi F, Del-Bem LE. Multiple horizontal gene transfer events have shaped plant glycosyl hydrolase diversity and function. THE NEW PHYTOLOGIST 2024; 242:809-824. [PMID: 38417454 DOI: 10.1111/nph.19595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 01/15/2024] [Indexed: 03/01/2024]
Abstract
Plant glycosyl hydrolases (GHs) play a crucial role in selectively breaking down carbohydrates and glycoconjugates during various cellular processes, such as reserve mobilization, pathogen defense, and modification/disassembly of the cell wall. In this study, we examined the distribution of GH genes in the Archaeplastida supergroup, which encompasses red algae, glaucophytes, and green plants. We identified that the GH repertoire expanded from a few tens of genes in early archaeplastidians to over 400 genes in modern angiosperms, spanning 40 GH families in land plants. Our findings reveal that major evolutionary transitions were accompanied by significant changes in the GH repertoire. Specifically, we identified at least 23 GH families acquired by green plants through multiple horizontal gene transfer events, primarily from bacteria and fungi. We found a significant shift in the subcellular localization of GH activity during green plant evolution, with a marked increase in extracellular-targeted GH proteins associated with the diversification of plant cell wall polysaccharides and defense mechanisms against pathogens. In conclusion, our study sheds light on the macroevolutionary processes that have shaped the GH repertoire in plants, highlighting the acquisition of GH families through horizontal transfer and the role of GHs in plant adaptation and defense mechanisms.
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Affiliation(s)
- Beatriz Kfoury
- Graduate Program in Bioinformatics, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
- Del-Bem Lab, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
| | - Wenderson Felipe Costa Rodrigues
- Del-Bem Lab, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
- Graduate Program in Plant Biology, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
| | - Sang-Jin Kim
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI, 48824, USA
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, 48824, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Federica Brandizzi
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI, 48824, USA
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, 48824, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Luiz-Eduardo Del-Bem
- Graduate Program in Bioinformatics, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
- Del-Bem Lab, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
- Graduate Program in Plant Biology, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI, 48824, USA
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9
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Dhabalia Ashok A, Freitag JN, Irisarri I, de Vries S, de Vries J. Sequence similarity networks bear out hierarchical relationships of green cytochrome P450. PHYSIOLOGIA PLANTARUM 2024; 176:e14244. [PMID: 38480467 DOI: 10.1111/ppl.14244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/24/2024]
Abstract
Land plants have diversified enzyme families. One of the most prominent is the cytochrome P450 (CYP or CYP450) family. With over 443,000 CYP proteins sequenced across the tree of life, CYPs are ubiquitous in archaea, bacteria, and eukaryotes. Here, we focused on land plants and algae to study the role of CYP diversification. CYPs, acting as monooxygenases, catalyze hydroxylation reactions crucial for specialized plant metabolic pathways, including detoxification and phytohormone production; the CYPome consists of one enormous superfamily that is divided into clans and families. Their evolutionary history speaks of high substrate promiscuity; radiation and functional diversification have yielded numerous CYP families. To understand the evolutionary relationships within the CYPs, we employed sequence similarity network analyses. We recovered distinct clusters representing different CYP families, reflecting their diversified sequences that we link to the prediction of functionalities. Hierarchical clustering and phylogenetic analysis further elucidated relationships between CYP clans, uncovering their shared deep evolutionary history. We explored the distribution and diversification of CYP subfamilies across plant and algal lineages, uncovering novel candidates and providing insights into the evolution of these enzyme families. This identified unexpected relationships between CYP families, such as the link between CYP82 and CYP74, shedding light on their roles in plant defense signaling pathways. Our approach provides a methodology that brings insights into the emergence of new functions within the CYP450 family, contributing to the evolutionary history of plants and algae. These insights can be further validated and implemented via experimental setups under various external conditions.
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Affiliation(s)
- Amra Dhabalia Ashok
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Jella N Freitag
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Iker Irisarri
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
- Section Phylogenomics, Centre for Molecular Biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change (LIB), Museum of Nature, Hamburg, Germany
| | - Sophie de Vries
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Jan de Vries
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
- Campus Institute Data Science (CIDAS), University of Goettingen, Goettingen, Germany
- Goettingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, University of Goettinzgen, Goettingen, Germany
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10
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Hembach L, Niemeyer PW, Schmitt K, Zegers JMS, Scholz P, Brandt D, Dabisch JJ, Valerius O, Braus GH, Schwarzländer M, de Vries J, Rensing SA, Ischebeck T. Proteome plasticity during Physcomitrium patens spore germination - from the desiccated phase to heterotrophic growth and reconstitution of photoautotrophy. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:1466-1486. [PMID: 38059656 DOI: 10.1111/tpj.16574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 12/08/2023]
Abstract
The establishment of moss spores is considered a milestone in plant evolution. They harbor protein networks underpinning desiccation tolerance and accumulation of storage compounds that can be found already in algae and that are also utilized in seeds and pollen. Furthermore, germinating spores must produce proteins that drive the transition through heterotrophic growth to the autotrophic plant. To get insight into the plasticity of this proteome, we investigated it at five timepoints of moss (Physcomitrium patens) spore germination and in protonemata and gametophores. The comparison to previously published Arabidopsis proteome data of seedling establishment showed that not only the proteomes of spores and seeds are functionally related, but also the proteomes of germinating spores and young seedlings. We observed similarities with regard to desiccation tolerance, lipid droplet proteome composition, control of dormancy, and β-oxidation and the glyoxylate cycle. However, there were also striking differences. For example, spores lacked any obvious storage proteins. Furthermore, we did not detect homologs to the main triacylglycerol lipase in Arabidopsis seeds, SUGAR DEPENDENT1. Instead, we discovered a triacylglycerol lipase of the oil body lipase family and a lipoxygenase as being the overall most abundant proteins in spores. This finding indicates an alternative pathway for triacylglycerol degradation via oxylipin intermediates in the moss. The comparison of spores to Nicotiana tabacum pollen indicated similarities for example in regards to resistance to desiccation and hypoxia, but the overall developmental pattern did not align as in the case of seedling establishment and spore germination.
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Affiliation(s)
- Lea Hembach
- Green Biotechnology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Philipp W Niemeyer
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, 37077, Göttingen, Germany
| | - Kerstin Schmitt
- Department for Molecular Microbiology and Genetics, Genetics and Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Institute for Microbiology, University of Göttingen, 37077, Göttingen, Germany
| | - Jaccoline M S Zegers
- Department of Applied Bioinformatics, Göttingen Center for Molecular Biosciences (GZMB) and Campus Institute Data Science (CIDAS), Institute for Microbiology and Genetics, University of Göttingen, 37077, Göttingen, Germany
| | - Patricia Scholz
- Laboratoire Reproduction et Développement des Plantes (RDP), UCB Lyon 1, CNRS, INRAE, Université de Lyon, ENS de Lyon, Lyon, France
| | - Dennis Brandt
- Plant Energy Biology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Janis J Dabisch
- Green Biotechnology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Oliver Valerius
- Department for Molecular Microbiology and Genetics, Genetics and Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Institute for Microbiology, University of Göttingen, 37077, Göttingen, Germany
| | - Gerhard H Braus
- Department for Molecular Microbiology and Genetics, Genetics and Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Institute for Microbiology, University of Göttingen, 37077, Göttingen, Germany
| | - Markus Schwarzländer
- Plant Energy Biology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Jan de Vries
- Department of Applied Bioinformatics, Göttingen Center for Molecular Biosciences (GZMB) and Campus Institute Data Science (CIDAS), Institute for Microbiology and Genetics, University of Göttingen, 37077, Göttingen, Germany
| | - Stefan A Rensing
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
| | - Till Ischebeck
- Green Biotechnology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, 37077, Göttingen, Germany
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11
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Bierenbroodspot MJ, Darienko T, de Vries S, Fürst-Jansen JMR, Buschmann H, Pröschold T, Irisarri I, de Vries J. Phylogenomic insights into the first multicellular streptophyte. Curr Biol 2024; 34:670-681.e7. [PMID: 38244543 PMCID: PMC10849092 DOI: 10.1016/j.cub.2023.12.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/22/2024]
Abstract
Streptophytes are best known as the clade containing the teeming diversity of embryophytes (land plants).1,2,3,4 Next to embryophytes are however a range of freshwater and terrestrial algae that bear important information on the emergence of key traits of land plants. Among these, the Klebsormidiophyceae stand out. Thriving in diverse environments-from mundane (ubiquitous occurrence on tree barks and rocks) to extreme (from the Atacama Desert to the Antarctic)-Klebsormidiophyceae can exhibit filamentous body plans and display remarkable resilience as colonizers of terrestrial habitats.5,6 Currently, the lack of a robust phylogenetic framework for the Klebsormidiophyceae hampers our understanding of the evolutionary history of these key traits. Here, we conducted a phylogenomic analysis utilizing advanced models that can counteract systematic biases. We sequenced 24 new transcriptomes of Klebsormidiophyceae and combined them with 14 previously published genomic and transcriptomic datasets. Using an analysis built on 845 loci and sophisticated mixture models, we establish a phylogenomic framework, dividing the six distinct genera of Klebsormidiophyceae in a novel three-order system, with a deep divergence more than 830 million years ago. Our reconstructions of ancestral states suggest (1) an evolutionary history of multiple transitions between terrestrial-aquatic habitats, with stem Klebsormidiales having conquered land earlier than embryophytes, and (2) that the body plan of the last common ancestor of Klebsormidiophyceae was multicellular, with a high probability that it was filamentous whereas the sarcinoids and unicells in Klebsormidiophyceae are likely derived states. We provide evidence that the first multicellular streptophytes likely lived about a billion years ago.
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Affiliation(s)
- Maaike J Bierenbroodspot
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Tatyana Darienko
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Sophie de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Janine M R Fürst-Jansen
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany
| | - Henrik Buschmann
- University of Applied Sciences Mittweida, Faculty of Applied Computer Sciences and Biosciences, Section Biotechnology and Chemistry, Molecular Biotechnology, Technikumplatz 17, 09648 Mittweida, Germany
| | - Thomas Pröschold
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Innsbruck, Research Department for Limnology, 5310 Mondsee, Austria
| | - Iker Irisarri
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany; Section Phylogenomics, Centre for Molecular Biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change (LIB), Museum of Nature, Hamburg, Martin-Luther-King Platz 3, 20146 Hamburg, Germany.
| | - Jan de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany; University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany.
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12
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Groussman RD, Blaskowski S, Coesel SN, Armbrust EV. MarFERReT, an open-source, version-controlled reference library of marine microbial eukaryote functional genes. Sci Data 2023; 10:926. [PMID: 38129449 PMCID: PMC10739892 DOI: 10.1038/s41597-023-02842-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Metatranscriptomics generates large volumes of sequence data about transcribed genes in natural environments. Taxonomic annotation of these datasets depends on availability of curated reference sequences. For marine microbial eukaryotes, current reference libraries are limited by gaps in sequenced organism diversity and barriers to updating libraries with new sequence data, resulting in taxonomic annotation of about half of eukaryotic environmental transcripts. Here, we introduce Marine Functional EukaRyotic Reference Taxa (MarFERReT), a marine microbial eukaryotic sequence library designed for use with taxonomic annotation of eukaryotic metatranscriptomes. We gathered 902 publicly accessible marine eukaryote genomes and transcriptomes and assessed their sequence quality and cross-contamination issues, selecting 800 validated entries for inclusion in MarFERReT. Version 1.1 of MarFERReT contains reference sequences from 800 marine eukaryotic genomes and transcriptomes, covering 453 species- and strain-level taxa, totaling nearly 28 million protein sequences with associated NCBI and PR2 Taxonomy identifiers and Pfam functional annotations. The MarFERReT project repository hosts containerized build scripts, documentation on installation and use case examples, and information on new versions of MarFERReT.
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Affiliation(s)
- R D Groussman
- School of Oceanography, University of Washington, Benjamin Hall IRB, Room 306 616 NE Northlake Place, Seattle, WA, 98105, USA.
| | - S Blaskowski
- School of Oceanography, University of Washington, Benjamin Hall IRB, Room 306 616 NE Northlake Place, Seattle, WA, 98105, USA
- Molecular Engineering and Sciences Institute, University of Washington, Molecular Engineering & Sciences Building 3946 W Stevens Way NE, Seattle, WA, 98195, USA
| | - S N Coesel
- School of Oceanography, University of Washington, Benjamin Hall IRB, Room 306 616 NE Northlake Place, Seattle, WA, 98105, USA
| | - E V Armbrust
- School of Oceanography, University of Washington, Benjamin Hall IRB, Room 306 616 NE Northlake Place, Seattle, WA, 98105, USA.
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13
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Tagirdzhanova G, Scharnagl K, Yan X, Talbot NJ. Genomic analysis of Coccomyxa viridis, a common low-abundance alga associated with lichen symbioses. Sci Rep 2023; 13:21285. [PMID: 38042930 PMCID: PMC10693582 DOI: 10.1038/s41598-023-48637-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/28/2023] [Indexed: 12/04/2023] Open
Abstract
Lichen symbiosis is centered around a relationship between a fungus and a photosynthetic microbe, usually a green alga. In addition to their main photosynthetic partner (the photobiont), lichen symbioses can contain additional algae present in low abundance. The biology of these algae and the way they interact with the rest of lichen symbionts remains largely unknown. Here we present the first genome sequence of a non-photobiont lichen-associated alga. Coccomyxa viridis was unexpectedly found in 12% of publicly available lichen metagenomes. With few exceptions, members of the Coccomyxa viridis clade occur in lichens as non-photobionts, potentially growing in thalli endophytically. The 45.7 Mbp genome of C. viridis was assembled into 18 near chromosome-level contigs, making it one of the most contiguous genomic assemblies for any lichen-associated algae. Comparing the C. viridis genome to its close relatives revealed the presence of traits associated with the lichen lifestyle. The genome of C. viridis provides a new resource for exploring the evolution of the lichen symbiosis, and how symbiotic lifestyles shaped evolution in green algae.
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Affiliation(s)
- Gulnara Tagirdzhanova
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Colney Lane, Norwich, NR4 7UH, UK
| | - Klara Scharnagl
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Colney Lane, Norwich, NR4 7UH, UK
- University & Jepson Herbaria, University of California Berkeley, Valley Life Sciences Building, Berkeley, CA, 94720, USA
| | - Xia Yan
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Colney Lane, Norwich, NR4 7UH, UK
| | - Nicholas J Talbot
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Colney Lane, Norwich, NR4 7UH, UK.
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14
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Zhang X, Han W, Fan X, Wang Y, Xu D, Sun K, Wang W, Zhang Y, Ma J, Ye N. Gene duplication and functional divergence of new genes contributed to the polar acclimation of Antarctic green algae. MARINE LIFE SCIENCE & TECHNOLOGY 2023; 5:511-524. [PMID: 38045541 PMCID: PMC10689623 DOI: 10.1007/s42995-023-00203-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 10/12/2023] [Indexed: 12/05/2023]
Abstract
Psychrophilic microalgae successfully survive in the extreme and highly variable polar ecosystems, which represent the energy base of most food webs and play a fundamental role in nutrient cycling. The success of microalgae is rooted in their adaptive evolution. Revealing how they have evolved to thrive in extreme polar environments will help us better understand the origin of life in polar ecosystems. We isolated a psychrophilic unicellular green alga, Microglena sp. YARC, from Antarctic sea ice which has a huge genome. Therefore, we predicted that gene replication may play an important role in its polar adaptive evolution. We found that its protein-coding gene number significantly increased and the duplication time was dated between 37 and 48 million years ago, which is consistent with the formation of the circumpolar Southern Ocean. Most duplicated paralogous genes were enriched in pathways related to photosynthesis, DNA repair, and fatty acid metabolism. Moreover, there were a total of 657 Microglena-specific families, including collagen-like proteins. The divergence in the expression patterns of the duplicated and species-specific genes reflects sub- and neo-functionalization during stress acclimation. Overall, key findings from this study provide new information on how gene duplication and their functional novelty contributed to polar algae adaptation to the highly variable polar environmental conditions. Supplementary Information The online version contains supplementary material available at 10.1007/s42995-023-00203-z.
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Affiliation(s)
- Xiaowen Zhang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
- Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao, 266200 China
| | - Wentao Han
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Xiao Fan
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Yitao Wang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Dong Xu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Ke Sun
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Wei Wang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Yan Zhang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Jian Ma
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Naihao Ye
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
- Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao, 266200 China
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15
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Van de Poel B, de Vries J. Evolution of ethylene as an abiotic stress hormone in streptophytes. ENVIRONMENTAL AND EXPERIMENTAL BOTANY 2023; 214:105456. [PMID: 37780400 PMCID: PMC10518463 DOI: 10.1016/j.envexpbot.2023.105456] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 10/03/2023]
Abstract
All land plants modulate their growth and physiology through intricate signaling cascades. The majority of these are at least modulated-and often triggered-by phytohormones. Over the past decade, it has become apparent that some phytohormones have an evolutionary origin that runs deeper than plant terrestrialization-many emerged in the streptophyte algal progenitors of land plants. Ethylene is such a case. Here we synthesize the current knowledge on the evolution of the phytohormone ethylene and speculate about its deeply conserved role in adjusting stress responses of streptophytes for more than half a billion years of evolution.
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Affiliation(s)
- Bram Van de Poel
- Molecular Plant Hormone Physiology lab, Division of Crop Biotechnics, Department of Biosystems, University of Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
- KU Leuven Plant Institute (LPI), University of Leuven, Kasteelpark Arenberg 31, 3001 Leuven, Belgium
| | - Jan de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany
- University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
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16
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Dadras A, Fürst-Jansen JMR, Darienko T, Krone D, Scholz P, Sun S, Herrfurth C, Rieseberg TP, Irisarri I, Steinkamp R, Hansen M, Buschmann H, Valerius O, Braus GH, Hoecker U, Feussner I, Mutwil M, Ischebeck T, de Vries S, Lorenz M, de Vries J. Environmental gradients reveal stress hubs pre-dating plant terrestrialization. NATURE PLANTS 2023; 9:1419-1438. [PMID: 37640935 PMCID: PMC10505561 DOI: 10.1038/s41477-023-01491-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 07/11/2023] [Indexed: 08/31/2023]
Abstract
Plant terrestrialization brought forth the land plants (embryophytes). Embryophytes account for most of the biomass on land and evolved from streptophyte algae in a singular event. Recent advances have unravelled the first full genomes of the closest algal relatives of land plants; among the first such species was Mesotaenium endlicherianum. Here we used fine-combed RNA sequencing in tandem with a photophysiological assessment on Mesotaenium exposed to a continuous range of temperature and light cues. Our data establish a grid of 42 different conditions, resulting in 128 transcriptomes and ~1.5 Tbp (~9.9 billion reads) of data to study the combinatory effects of stress response using clustering along gradients. Mesotaenium shares with land plants major hubs in genetic networks underpinning stress response and acclimation. Our data suggest that lipid droplet formation and plastid and cell wall-derived signals have denominated molecular programmes since more than 600 million years of streptophyte evolution-before plants made their first steps on land.
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Affiliation(s)
- Armin Dadras
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Janine M R Fürst-Jansen
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
- Campus Institute Data Science, University of Goettingen, Goettingen, Germany
| | - Tatyana Darienko
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Denis Krone
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Patricia Scholz
- Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, University of Goettingen, Goettingen, Germany
| | - Siqi Sun
- Institute of Plant Biology and Biotechnology, Green Biotechnology, University of Münster, Münster, Germany
| | - Cornelia Herrfurth
- Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, University of Goettingen, Goettingen, Germany
- Goettingen Center for Molecular Biosciences, Service Unit for Metabolomics and Lipidomics, University of Goettingen, Goettingen, Germany
| | - Tim P Rieseberg
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Iker Irisarri
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
- Campus Institute Data Science, University of Goettingen, Goettingen, Germany
- Section Phylogenomics, Centre for Molecular Biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change, Museum of Nature, Hamburg, Germany
| | - Rasmus Steinkamp
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Maike Hansen
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences, Biocenter, University of Cologne, Cologne, Germany
| | - Henrik Buschmann
- Faculty of Applied Computer Sciences and Biosciences, Section Biotechnology and Chemistry, Molecular Biotechnology, University of Applied Sciences Mittweida, Mittweida, Germany
| | - Oliver Valerius
- Institute of Microbiology and Genetics and Göttingen Center for Molecular Biosciences and Service Unit LCMS Protein Analytics, Department of Molecular Microbiology and Genetics, University of Goettingen, Goettingen, Germany
| | - Gerhard H Braus
- Institute of Microbiology and Genetics and Göttingen Center for Molecular Biosciences and Service Unit LCMS Protein Analytics, Department of Molecular Microbiology and Genetics, University of Goettingen, Goettingen, Germany
| | - Ute Hoecker
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences, Biocenter, University of Cologne, Cologne, Germany
| | - Ivo Feussner
- Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, University of Goettingen, Goettingen, Germany
- Goettingen Center for Molecular Biosciences, Service Unit for Metabolomics and Lipidomics, University of Goettingen, Goettingen, Germany
- Goettingen Center for Molecular Biosciences, Department of Plant Biochemistry, University of Goettingen, Goettingen, Germany
| | - Marek Mutwil
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Till Ischebeck
- Institute of Plant Biology and Biotechnology, Green Biotechnology, University of Münster, Münster, Germany
| | - Sophie de Vries
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany
| | - Maike Lorenz
- Albrecht-von-Haller-Institute for Plant Sciences, Department of Experimental Phycology and SAG Culture Collection of Algae, University of Goettingen, Goettingen, Germany
| | - Jan de Vries
- Institute of Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany.
- Campus Institute Data Science, University of Goettingen, Goettingen, Germany.
- Goettingen Center for Molecular Biosciences, Department of Applied Bioinformatics, University of Goettingen, Goettingen, Germany.
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17
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Hara Y, Kuraku S. The impact of local genomic properties on the evolutionary fate of genes. eLife 2023; 12:82290. [PMID: 37223962 DOI: 10.7554/elife.82290] [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: 07/29/2022] [Accepted: 04/25/2023] [Indexed: 05/25/2023] Open
Abstract
Functionally indispensable genes are likely to be retained and otherwise to be lost during evolution. This evolutionary fate of a gene can also be affected by factors independent of gene dispensability, including the mutability of genomic positions, but such features have not been examined well. To uncover the genomic features associated with gene loss, we investigated the characteristics of genomic regions where genes have been independently lost in multiple lineages. With a comprehensive scan of gene phylogenies of vertebrates with a careful inspection of evolutionary gene losses, we identified 813 human genes whose orthologs were lost in multiple mammalian lineages: designated 'elusive genes.' These elusive genes were located in genomic regions with rapid nucleotide substitution, high GC content, and high gene density. A comparison of the orthologous regions of such elusive genes across vertebrates revealed that these features had been established before the radiation of the extant vertebrates approximately 500 million years ago. The association of human elusive genes with transcriptomic and epigenomic characteristics illuminated that the genomic regions containing such genes were subject to repressive transcriptional regulation. Thus, the heterogeneous genomic features driving gene fates toward loss have been in place and may sometimes have relaxed the functional indispensability of such genes. This study sheds light on the complex interplay between gene function and local genomic properties in shaping gene evolution that has persisted since the vertebrate ancestor.
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Affiliation(s)
- Yuichiro Hara
- Research Center for Genome & Medical Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Shigehiro Kuraku
- Molecular Life History Laboratory, Department of Genomics and Evolutionary Biology, National Institute of Genetics, Mishima, Japan
- Department of Genetics, Sokendai (Graduate University for Advanced Studies), Mishima, Japan
- RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
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18
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Bowles AMC, Williamson CJ, Williams TA, Lenton TM, Donoghue PCJ. The origin and early evolution of plants. TRENDS IN PLANT SCIENCE 2023; 28:312-329. [PMID: 36328872 DOI: 10.1016/j.tplants.2022.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/23/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Plant (archaeplastid) evolution has transformed the biosphere, but we are only now beginning to learn how this took place through comparative genomics, phylogenetics, and the fossil record. This has illuminated the phylogeny of Archaeplastida, Viridiplantae, and Streptophyta, and has resolved the evolution of key characters, genes, and genomes - revealing that many key innovations evolved long before the clades with which they have been casually associated. Molecular clock analyses estimate that Streptophyta and Viridiplantae emerged in the late Mesoproterozoic to late Neoproterozoic, whereas Archaeplastida emerged in the late-mid Palaeoproterozoic. Together, these insights inform on the coevolution of plants and the Earth system that transformed ecology and global biogeochemical cycles, increased weathering, and precipitated snowball Earth events, during which they would have been key to oxygen production and net primary productivity (NPP).
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Affiliation(s)
- Alexander M C Bowles
- School of Geographical Sciences, University of Bristol, University Road, Bristol BS8 1SS, UK; Bristol Palaeobiology Group, School of Biological Sciences and School of Earth Sciences, Life Sciences Building, University of Bristol, Bristol BS8 1TQ, UK.
| | | | - Tom A Williams
- Bristol Palaeobiology Group, School of Biological Sciences and School of Earth Sciences, Life Sciences Building, University of Bristol, Bristol BS8 1TQ, UK
| | - Timothy M Lenton
- Global Systems Institute, University of Exeter, Laver Building, North Park Road, Exeter EX4 4QE, UK
| | - Philip C J Donoghue
- Bristol Palaeobiology Group, School of Biological Sciences and School of Earth Sciences, Life Sciences Building, University of Bristol, Bristol BS8 1TQ, UK.
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19
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Patel VK, Das A, Kumari R, Kajla S. Recent progress and challenges in CRISPR-Cas9 engineered algae and cyanobacteria. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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20
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Craig RJ, Gallaher SD, Shu S, Salomé PA, Jenkins JW, Blaby-Haas CE, Purvine SO, O’Donnell S, Barry K, Grimwood J, Strenkert D, Kropat J, Daum C, Yoshinaga Y, Goodstein DM, Vallon O, Schmutz J, Merchant SS. The Chlamydomonas Genome Project, version 6: Reference assemblies for mating-type plus and minus strains reveal extensive structural mutation in the laboratory. THE PLANT CELL 2023; 35:644-672. [PMID: 36562730 PMCID: PMC9940879 DOI: 10.1093/plcell/koac347] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 10/12/2022] [Accepted: 12/16/2022] [Indexed: 05/20/2023]
Abstract
Five versions of the Chlamydomonas reinhardtii reference genome have been produced over the last two decades. Here we present version 6, bringing significant advances in assembly quality and structural annotations. PacBio-based chromosome-level assemblies for two laboratory strains, CC-503 and CC-4532, provide resources for the plus and minus mating-type alleles. We corrected major misassemblies in previous versions and validated our assemblies via linkage analyses. Contiguity increased over ten-fold and >80% of filled gaps are within genes. We used Iso-Seq and deep RNA-seq datasets to improve structural annotations, and updated gene symbols and textual annotation of functionally characterized genes via extensive manual curation. We discovered that the cell wall-less classical reference strain CC-503 exhibits genomic instability potentially caused by deletion of the helicase RECQ3, with major structural mutations identified that affect >100 genes. We therefore present the CC-4532 assembly as the primary reference, although this strain also carries unique structural mutations and is experiencing rapid proliferation of a Gypsy retrotransposon. We expect all laboratory strains to harbor gene-disrupting mutations, which should be considered when interpreting and comparing experimental results. Collectively, the resources presented here herald a new era of Chlamydomonas genomics and will provide the foundation for continued research in this important reference organism.
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Affiliation(s)
- Rory J Craig
- California Institute for Quantitative Biosciences, University of California, Berkeley, California 94720, USA
- Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK
| | - Sean D Gallaher
- California Institute for Quantitative Biosciences, University of California, Berkeley, California 94720, USA
| | - Shengqiang Shu
- United States Department of Energy, Joint Genome Institute, Berkeley, California 94720, USA
| | - Patrice A Salomé
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
- Institute for Genomics and Proteomics, University of California, Los Angeles, California 90095, USA
| | - Jerry W Jenkins
- HudsonAlpha Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806, USA
| | - Crysten E Blaby-Haas
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Samuel O Purvine
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - Samuel O’Donnell
- Laboratory of Computational and Quantitative Biology, UMR 7238, CNRS, Institut de Biologie Paris-Seine, Sorbonne Université, Paris 75005, France
| | - Kerrie Barry
- United States Department of Energy, Joint Genome Institute, Berkeley, California 94720, USA
| | - Jane Grimwood
- HudsonAlpha Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806, USA
| | - Daniela Strenkert
- California Institute for Quantitative Biosciences, University of California, Berkeley, California 94720, USA
| | - Janette Kropat
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
| | - Chris Daum
- United States Department of Energy, Joint Genome Institute, Berkeley, California 94720, USA
| | - Yuko Yoshinaga
- United States Department of Energy, Joint Genome Institute, Berkeley, California 94720, USA
| | - David M Goodstein
- United States Department of Energy, Joint Genome Institute, Berkeley, California 94720, USA
| | - Olivier Vallon
- Unité Mixte de Recherche 7141, CNRS, Institut de Biologie Physico-Chimique, Sorbonne Université, Paris 75005, France
| | - Jeremy Schmutz
- United States Department of Energy, Joint Genome Institute, Berkeley, California 94720, USA
- HudsonAlpha Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806, USA
| | - Sabeeha S Merchant
- California Institute for Quantitative Biosciences, University of California, Berkeley, California 94720, USA
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, USA
- Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA
- Division of Environmental Genomics and Systems Biology, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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21
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Feng X, Zheng J, Irisarri I, Yu H, Zheng B, Ali Z, de Vries S, Keller J, Fürst-Jansen JM, Dadras A, Zegers JM, Rieseberg TP, Ashok AD, Darienko T, Bierenbroodspot MJ, Gramzow L, Petroll R, Haas FB, Fernandez-Pozo N, Nousias O, Li T, Fitzek E, Grayburn WS, Rittmeier N, Permann C, Rümpler F, Archibald JM, Theißen G, Mower JP, Lorenz M, Buschmann H, von Schwartzenberg K, Boston L, Hayes RD, Daum C, Barry K, Grigoriev IV, Wang X, Li FW, Rensing SA, Ari JB, Keren N, Mosquna A, Holzinger A, Delaux PM, Zhang C, Huang J, Mutwil M, de Vries J, Yin Y. Chromosome-level genomes of multicellular algal sisters to land plants illuminate signaling network evolution. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.31.526407. [PMID: 36778228 PMCID: PMC9915684 DOI: 10.1101/2023.01.31.526407] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The filamentous and unicellular algae of the class Zygnematophyceae are the closest algal relatives of land plants. Inferring the properties of the last common ancestor shared by these algae and land plants allows us to identify decisive traits that enabled the conquest of land by plants. We sequenced four genomes of filamentous Zygnematophyceae (three strains of Zygnema circumcarinatum and one strain of Z. cylindricum) and generated chromosome-scale assemblies for all strains of the emerging model system Z. circumcarinatum. Comparative genomic analyses reveal expanded genes for signaling cascades, environmental response, and intracellular trafficking that we associate with multicellularity. Gene family analyses suggest that Zygnematophyceae share all the major enzymes with land plants for cell wall polysaccharide synthesis, degradation, and modifications; most of the enzymes for cell wall innovations, especially for polysaccharide backbone synthesis, were gained more than 700 million years ago. In Zygnematophyceae, these enzyme families expanded, forming co-expressed modules. Transcriptomic profiling of over 19 growth conditions combined with co-expression network analyses uncover cohorts of genes that unite environmental signaling with multicellular developmental programs. Our data shed light on a molecular chassis that balances environmental response and growth modulation across more than 600 million years of streptophyte evolution.
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Affiliation(s)
- Xuehuan Feng
- University of Nebraska-Lincoln, Department of Food Science and Technology, Lincoln, NE 68588, USA
| | - Jinfang Zheng
- University of Nebraska-Lincoln, Department of Food Science and Technology, Lincoln, NE 68588, USA
| | - Iker Irisarri
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany
- Section Phylogenomics, Centre for Molecular biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Museum Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
| | - Huihui Yu
- University of Nebraska-Lincoln, Center for Plant Science Innovation, Lincoln, NE 68588, USA
| | - Bo Zheng
- University of Nebraska-Lincoln, Department of Food Science and Technology, Lincoln, NE 68588, USA
| | - Zahin Ali
- Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Sophie de Vries
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Jean Keller
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet-Tolosan, 31326, France
| | - Janine M.R. Fürst-Jansen
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Armin Dadras
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Jaccoline M.S. Zegers
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Tim P. Rieseberg
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Amra Dhabalia Ashok
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Tatyana Darienko
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Maaike J. Bierenbroodspot
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Lydia Gramzow
- University of Jena, Matthias Schleiden Institute / Genetics, 07743, Jena, Germany
| | - Romy Petroll
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- Department of Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Fabian B. Haas
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- Department of Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Noe Fernandez-Pozo
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- Institute for Mediterranean and Subtropical Horticulture “La Mayora” (UMA-CSIC)
| | - Orestis Nousias
- University of Nebraska-Lincoln, Department of Food Science and Technology, Lincoln, NE 68588, USA
| | - Tang Li
- University of Nebraska-Lincoln, Department of Food Science and Technology, Lincoln, NE 68588, USA
| | - Elisabeth Fitzek
- Computational Biology, Department of Biology, Center for Biotechnology, Bielefeld University, Bielefeld, Germany
| | - W. Scott Grayburn
- Northern Illinois University, Molecular Core Lab, Department of Biological Sciences, DeKalb, IL 60115, USA
| | - Nina Rittmeier
- University of Innsbruck, Department of Botany, Research Group Plant Cell Biology, Sternwartestraße 15, A-6020 Innsbruck, Austria
| | - Charlotte Permann
- University of Innsbruck, Department of Botany, Research Group Plant Cell Biology, Sternwartestraße 15, A-6020 Innsbruck, Austria
| | - Florian Rümpler
- University of Jena, Matthias Schleiden Institute / Genetics, 07743, Jena, Germany
| | - John M. Archibald
- Dalhousie University, Department of Biochemistry and Molecular Biology, 5850 College Street, Halifax NS B3H 4R2, Canada
| | - Günter Theißen
- University of Jena, Matthias Schleiden Institute / Genetics, 07743, Jena, Germany
| | - Jeffrey P. Mower
- University of Nebraska-Lincoln, Center for Plant Science Innovation, Lincoln, NE 68588, USA
| | - Maike Lorenz
- University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Experimental Phycology and Culture Collection of Algae at Goettingen University (EPSAG), Nikolausberger Weg 18, 37073 Goettingen, Germany
| | - Henrik Buschmann
- University of Applied Sciences Mittweida, Faculty of Applied Computer Sciences and Biosciences, Section Biotechnology and Chemistry, Molecular Biotechnology, Technikumplatz 17, 09648 Mittweida, Germany
| | - Klaus von Schwartzenberg
- Universität Hamburg, Institute of Plant Science and Microbiology, Microalgae and Zygnematophyceae Collection Hamburg (MZCH) and Aquatic Ecophysiology and Phycology, Ohnhorststr. 18, 22609, Hamburg, Germany
| | - Lori Boston
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Richard D. Hayes
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Chris Daum
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Kerrie Barry
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Igor V. Grigoriev
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720, USA
| | - Xiyin Wang
- North China University of Science and Technology
| | - Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, USA
- Cornell University, Plant Biology Section, Ithaca, NY, USA
| | - Stefan A. Rensing
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- University of Freiburg, Centre for Biological Signalling Studies (BIOSS), Freiburg, Germany
| | - Julius Ben Ari
- The Hebrew University of Jerusalem, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Rehovot 7610000, Israel
| | - Noa Keren
- The Hebrew University of Jerusalem, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Rehovot 7610000, Israel
| | - Assaf Mosquna
- The Hebrew University of Jerusalem, The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Rehovot 7610000, Israel
| | - Andreas Holzinger
- University of Innsbruck, Department of Botany, Research Group Plant Cell Biology, Sternwartestraße 15, A-6020 Innsbruck, Austria
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet-Tolosan, 31326, France
| | - Chi Zhang
- University of Nebraska-Lincoln, Center for Plant Science Innovation, Lincoln, NE 68588, USA
- University of Nebraska-Lincoln, School of Biological Sciences, Lincoln, NE 68588, USA
| | - Jinling Huang
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
- Department of Biology, East Carolina University, Greenville, NC, USA
| | - Marek Mutwil
- Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Jan de Vries
- University of Goettingen, Institute of Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany
- University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Justus-von-Liebig-Weg 11, 37077 Goettingen, Germany
| | - Yanbin Yin
- University of Nebraska-Lincoln, Department of Food Science and Technology, Lincoln, NE 68588, USA
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22
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Healey AL, Piatkowski B, Lovell JT, Sreedasyam A, Carey SB, Mamidi S, Shu S, Plott C, Jenkins J, Lawrence T, Aguero B, Carrell AA, Nieto-Lugilde M, Talag J, Duffy A, Jawdy S, Carter KR, Boston LB, Jones T, Jaramillo-Chico J, Harkess A, Barry K, Keymanesh K, Bauer D, Grimwood J, Gunter L, Schmutz J, Weston DJ, Shaw AJ. Newly identified sex chromosomes in the Sphagnum (peat moss) genome alter carbon sequestration and ecosystem dynamics. NATURE PLANTS 2023; 9:238-254. [PMID: 36747050 PMCID: PMC9946827 DOI: 10.1038/s41477-022-01333-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 12/13/2022] [Indexed: 06/18/2023]
Abstract
Peatlands are crucial sinks for atmospheric carbon but are critically threatened due to warming climates. Sphagnum (peat moss) species are keystone members of peatland communities where they actively engineer hyperacidic conditions, which improves their competitive advantage and accelerates ecosystem-level carbon sequestration. To dissect the molecular and physiological sources of this unique biology, we generated chromosome-scale genomes of two Sphagnum species: S. divinum and S. angustifolium. Sphagnum genomes show no gene colinearity with any other reference genome to date, demonstrating that Sphagnum represents an unsampled lineage of land plant evolution. The genomes also revealed an average recombination rate an order of magnitude higher than vascular land plants and short putative U/V sex chromosomes. These newly described sex chromosomes interact with autosomal loci that significantly impact growth across diverse pH conditions. This discovery demonstrates that the ability of Sphagnum to sequester carbon in acidic peat bogs is mediated by interactions between sex, autosomes and environment.
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Affiliation(s)
- Adam L Healey
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA.
| | - Bryan Piatkowski
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - John T Lovell
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Avinash Sreedasyam
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Sarah B Carey
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL, USA
| | - Sujan Mamidi
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Shengqiang Shu
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Chris Plott
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Jerry Jenkins
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Travis Lawrence
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Blanka Aguero
- Department of Biology, Duke University, Durham, NC, USA
| | - Alyssa A Carrell
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | | | - Jayson Talag
- Arizona Genomics Institute, University of Arizona, Tucson, AZ, USA
| | - Aaron Duffy
- Department of Biology, Duke University, Durham, NC, USA
| | - Sara Jawdy
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Kelsey R Carter
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Lori-Beth Boston
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Teresa Jones
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | | | - Alex Harkess
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL, USA
| | - Kerrie Barry
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Keykhosrow Keymanesh
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Diane Bauer
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jane Grimwood
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Lee Gunter
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Jeremy Schmutz
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - David J Weston
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
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23
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Rieseberg TP, Dadras A, Fürst-Jansen JMR, Dhabalia Ashok A, Darienko T, de Vries S, Irisarri I, de Vries J. Crossroads in the evolution of plant specialized metabolism. Semin Cell Dev Biol 2023; 134:37-58. [PMID: 35292191 DOI: 10.1016/j.semcdb.2022.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 02/17/2022] [Accepted: 03/04/2022] [Indexed: 12/25/2022]
Abstract
The monophyletic group of embryophytes (land plants) stands out among photosynthetic eukaryotes: they are the sole constituents of the macroscopic flora on land. In their entirety, embryophytes account for the majority of the biomass on land and constitute an astounding biodiversity. What allowed for the massive radiation of this particular lineage? One of the defining features of all land plants is the production of an array of specialized metabolites. The compounds that the specialized metabolic pathways of embryophytes produce have diverse functions, ranging from superabundant structural polymers and compounds that ward off abiotic and biotic challenges, to signaling molecules whose abundance is measured at the nanomolar scale. These specialized metabolites govern the growth, development, and physiology of land plants-including their response to the environment. Hence, specialized metabolites define the biology of land plants as we know it. And they were likely a foundation for their success. It is thus intriguing to find that the closest algal relatives of land plants, freshwater organisms from the grade of streptophyte algae, possess homologs for key enzymes of specialized metabolic pathways known from land plants. Indeed, some studies suggest that signature metabolites emerging from these pathways can be found in streptophyte algae. Here we synthesize the current understanding of which routes of the specialized metabolism of embryophytes can be traced to a time before plants had conquered land.
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Affiliation(s)
- Tim P Rieseberg
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Armin Dadras
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Janine M R Fürst-Jansen
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Amra Dhabalia Ashok
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Tatyana Darienko
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Sophie de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Iker Irisarri
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany
| | - Jan de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany; University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, Goldschmidtsr. 1, 37077 Goettingen, Germany.
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24
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Du J, Izquierdo D, Naoum J, Ohlund L, Sleno L, Beisner BE, Lavaud J, Juneau P. Pesticide responses of Arctic and temperate microalgae differ in relation to ecophysiological characteristics. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 254:106323. [PMID: 36435012 DOI: 10.1016/j.aquatox.2022.106323] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Polar ecosystems play an important role in global primary production. Microalgae have adaptations that enable them to live under low temperature environments where irradiance and day length change drastically. Their adaptations, leading to different ecophysiological characteristics relative to temperate species, could also alter their sensitivity to pollutants such as pesticides. This study's objective was to understand how different ecophysiological characteristics influence the response of Arctic phytoplankton to pesticides in relation to the responses of their temperate counterparts. Ecophysiological endpoints were related to growth, cell biovolume, pigment content, photosynthetic activity, photoprotective mechanisms (NPQ, antioxidant enzyme activities), and reactive oxygen species (ROS) content. The Arctic species Micromonas polaris was more resistant to atrazine and simazine than its temperate counterpart Micromonas bravo. However, the other Arctic species Chaetoceros neogracilis was more sensitive to these herbicides than its temperate counterpart Chaetoceros neogracile. With respect to two other pesticide toxicity, both temperate microalgae were more sensitive to trifluralin, while Arctic microalgae were more sensitive to chlorpyrifos (insecticide). All differences could be ascribed to differences in the eco-physiological features of the two microalgal groups, which can be explained by cell size, pigment content, ROS content and protective mechanisms (NPQ and antioxidant enzymes).
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Affiliation(s)
- Juan Du
- Department of Biological Sciences, Université du Québec à Montréal, GRIL-TOXEN, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada
| | - Disney Izquierdo
- Department of Biological Sciences, Université du Québec à Montréal, GRIL-EcotoQ-TOXEN, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada
| | - Jonathan Naoum
- Department of Biological Sciences, Université du Québec à Montréal, GRIL-EcotoQ-TOXEN, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada
| | - Leanne Ohlund
- Chemistry Department, Université du Québec à Montréal, EcotoQ-TOXEN, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada
| | - Lekha Sleno
- Chemistry Department, Université du Québec à Montréal, EcotoQ-TOXEN, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada
| | - Beatrix E Beisner
- Department of Biological Sciences, Groupe de recherche interuniversitaire en limnologie (GRIL), Université du Québec à Montréal, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada
| | - Johann Lavaud
- TAKUVIK International Research Laboratory IRL3376, Université Laval (Canada) - CNRS (France), Pavillon Alexandre-Vachon, 1045 av. de la Médecine, local 2064, G1V 0A6 Québec, Canada; LEMAR-Laboratory of Environmental Marine Sciences, UMR6539, CNRS/Univ Brest/Ifremer/IRD, Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, rue Dumont d'Urville, 29280 Plouzané, France
| | - Philippe Juneau
- Department of Biological Sciences, Université du Québec à Montréal, GRIL-EcotoQ-TOXEN, Succ Centre-Ville, Montreal, Quebec H3C 3P8, Canada.
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25
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Tan YH, Poong SW, Yang CH, Lim PE, John B, Pai TW, Phang SM. Transcriptomic analysis reveals distinct mechanisms of adaptation of a polar picophytoplankter under ocean acidification conditions. MARINE ENVIRONMENTAL RESEARCH 2022; 182:105782. [PMID: 36308800 DOI: 10.1016/j.marenvres.2022.105782] [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: 06/17/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Human emissions of carbon dioxide are causing irreversible changes in our oceans and impacting marine phytoplankton, including a group of small green algae known as picochlorophytes. Picochlorophytes grown in natural phytoplankton communities under future predicted levels of carbon dioxide have been demonstrated to thrive, along with redistribution of the cellular metabolome that enhances growth rate and photosynthesis. Here, using next-generation sequencing technology, we measured levels of transcripts in a picochlorophyte Chlorella, isolated from the sub-Antarctic and acclimated under high and current ambient CO2 levels, to better understand the molecular mechanisms involved with its ability to acclimate to elevated CO2. Compared to other phytoplankton taxa that induce broad transcriptomic responses involving multiple parts of their cellular metabolism, the changes observed in Chlorella focused on activating gene regulation involved in different sets of pathways such as light harvesting complex binding proteins, amino acid synthesis and RNA modification, while carbon metabolism was largely unaffected. Triggering a specific set of genes could be a unique strategy of small green phytoplankton under high CO2 in polar oceans.
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Affiliation(s)
- Yong-Hao Tan
- Institute for Advanced Studies, University of Malaya, Kuala Lumpur, Malaysia; Institute of Ocean & Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia
| | - Sze-Wan Poong
- Institute of Ocean & Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia
| | - Cing-Han Yang
- Department of Computer Science and Engineering, National Taiwan Ocean University, Keelung, Taiwan
| | - Phaik-Eem Lim
- Institute of Ocean & Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia.
| | - Beardall John
- School of Biological Sciences, Monash University, Clayton, Australia
| | - Tun-Wen Pai
- Department of Computer Science and Engineering, National Taiwan Ocean University, Keelung, Taiwan; Department of Computer Science and Information Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Siew-Moi Phang
- Institute of Ocean & Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia; Department of Biotechnology, Faculty of Applied Science, UCSI University, Kuala Lumpur, Malaysia; The Chancellery, UCSI University, Kuala Lumpur, Malaysia
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26
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Hess S, Williams SK, Busch A, Irisarri I, Delwiche CF, de Vries S, Darienko T, Roger AJ, Archibald JM, Buschmann H, von Schwartzenberg K, de Vries J. A phylogenomically informed five-order system for the closest relatives of land plants. Curr Biol 2022; 32:4473-4482.e7. [PMID: 36055238 PMCID: PMC9632326 DOI: 10.1016/j.cub.2022.08.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 12/15/2022]
Abstract
The evolution of streptophytes had a profound impact on life on Earth. They brought forth those photosynthetic eukaryotes that today dominate the macroscopic flora: the land plants (Embryophyta).1 There is convincing evidence that the unicellular/filamentous Zygnematophyceae-and not the morphologically more elaborate Coleochaetophyceae or Charophyceae-are the closest algal relatives of land plants.2-6 Despite the species richness (>4,000), wide distribution, and key evolutionary position of the zygnematophytes, their internal phylogeny remains largely unresolved.7,8 There are also putative zygnematophytes with interesting body plan modifications (e.g., filamentous growth) whose phylogenetic affiliations remain unknown. Here, we studied a filamentous green alga (strain MZCH580) from an Austrian peat bog with central or parietal chloroplasts that lack discernible pyrenoids. It represents Mougeotiopsis calospora PALLA, an enigmatic alga that was described more than 120 years ago9 but never subjected to molecular analyses. We generated transcriptomic data of M. calospora strain MZCH580 and conducted comprehensive phylogenomic analyses (326 nuclear loci) for 46 taxonomically diverse zygnematophytes. Strain MZCH580 falls in a deep-branching zygnematophycean clade together with some unicellular species and thus represents a formerly unknown zygnematophycean lineage with filamentous growth. Our well-supported phylogenomic tree lets us propose a new five-order system for the Zygnematophyceae and provides evidence for at least five independent origins of true filamentous growth in the closest algal relatives of land plants. This phylogeny provides a robust and comprehensive framework for performing comparative analyses and inferring the evolution of cellular traits and body plans in the closest relatives of land plants.
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Affiliation(s)
- Sebastian Hess
- Institute for Zoology, University of Cologne, Zülpicher Str. 47b, 50674 Cologne, Germany.
| | - Shelby K Williams
- Department of Biochemistry and Molecular Biology, Dalhousie University, 5850 College St., Halifax NS B3H 4R2, Canada
| | - Anna Busch
- Institute for Zoology, University of Cologne, Zülpicher Str. 47b, 50674 Cologne, Germany
| | - Iker Irisarri
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany
| | - Charles F Delwiche
- Cell Biology and Molecular Genetics, University of Maryland-College Park, College Park, MD, USA
| | - Sophie de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Tatyana Darienko
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany
| | - Andrew J Roger
- Department of Biochemistry and Molecular Biology, Dalhousie University, 5850 College St., Halifax NS B3H 4R2, Canada
| | - John M Archibald
- Department of Biochemistry and Molecular Biology, Dalhousie University, 5850 College St., Halifax NS B3H 4R2, Canada
| | - Henrik Buschmann
- University of Applied Sciences Mittweida, Faculty of Applied Computer Sciences and Biosciences, Section Biotechnology and Chemistry, Molecular Biotechnology, Technikumplatz 17, 09648 Mittweida, Germany
| | - Klaus von Schwartzenberg
- Universität Hamburg, Institute of Plant Science and Microbiology, Microalgae and Zygnematophyceae Collection Hamburg (MZCH) and Aquatic Ecophysiology and Phycology, Ohnhorststr. 18, 22609 Hamburg, Germany
| | - Jan de Vries
- University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany; University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077 Goettingen, Germany; University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany.
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27
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Zhang X, Hu Y, Smith DR. HSDatabase-a database of highly similar duplicate genes from plants, animals, and algae. Database (Oxford) 2022; 2022:6754190. [PMID: 36208223 PMCID: PMC9547538 DOI: 10.1093/database/baac086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/16/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022]
Abstract
Gene duplication is an important evolutionary mechanism capable of providing new genetic material, which in some instances can help organisms adapt to various environmental conditions. Recent studies, for example, have indicated that highly similar duplicate genes (HSDs) are aiding adaptation to extreme conditions via gene dosage. However, for most eukaryotic genomes HSDs remain uncharacterized, partly because they can be hard to identify and categorize efficiently and effectively. Here, we collected and curated HSDs in nuclear genomes from various model animals, land plants and algae and indexed them in an online, open-access sequence repository called HSDatabase. Currently, this database contains 117 864 curated HSDs from 40 distinct genomes; it includes statistics on the total number of HSDs per genome as well as individual HSD copy numbers/lengths and provides sequence alignments of the duplicate gene copies. HSDatabase also allows users to download sequences of gene copies, access genome browsers, and link out to other databases, such as Pfam and Kyoto Encyclopedia of Genes and Genomes. What is more, a built-in Basic Local Alignment Search Tool option is available to conveniently explore potential homologous sequences of interest within and across species. HSDatabase has a user-friendly interface and provides easy access to the source data. It can be used on its own for comparative analyses of gene duplicates or in conjunction with HSDFinder, a newly developed bioinformatics tool for identifying, annotating, categorizing and visualizing HSDs. Database URL: http://hsdfinder.com/database/
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Affiliation(s)
- Xi Zhang
- Institute for Comparative Genomics, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada.,Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Yining Hu
- Department of Computer Science, University of Western Ontario, London, Ontario N6A 3K7, Canada
| | - David Roy Smith
- Department of Biology, University of Western Ontario, London, Ontario N6A 3K7, Canada
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Suyal DC, Joshi D, Kumar S, Bhatt P, Narayan A, Giri K, Singh M, Soni R, Kumar R, Yadav A, Devi R, Kaur T, Kour D, Yadav AN. Himalayan Microbiomes for Agro-environmental Sustainability: Current Perspectives and Future Challenges. MICROBIAL ECOLOGY 2022; 84:643-675. [PMID: 34647148 DOI: 10.1007/s00248-021-01849-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
The Himalayas are one of the most mystical, yet least studied terrains of the world. One of Earth's greatest multifaceted and diverse montane ecosystems is also one of the thirty-four global biodiversity hotspots of the world. These are supposed to have been uplifted about 60-70 million years ago and support, distinct environments, physiography, a variety of orogeny, and great biological diversity (plants, animals, and microbes). Microbes are the pioneer colonizer of the Himalayas that are involved in various bio-geological cycles and play various significant roles. The applications of Himalayan microbiomes inhabiting in lesser to greater Himalayas have been recognized. The researchers explored the applications of indigenous microbiomes in both agricultural and environmental sectors. In agriculture, microbiomes from Himalayan regions have been suggested as better biofertilizers and biopesticides for the crops growing at low temperature and mountainous areas as they help in the alleviation of cold stress and other biotic stresses. Along with alleviation of low temperature, Himalayan microbes also have the capability to enhance plant growth by availing the soluble form of nutrients like nitrogen, phosphorus, potassium, zinc, and iron. These microbes have been recognized for producing plant growth regulators (abscisic acid, auxin, cytokinin, ethylene, and gibberellins). These microbes have been reported for bioremediating the diverse pollutants (pesticides, heavy metals, and xenobiotics) for environmental sustainability. In the current perspectives, present review provides a detailed discussion on the ecology, biodiversity, and adaptive features of the native Himalayan microbiomes in view to achieve agro-environmental sustainability.
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Affiliation(s)
- Deep Chandra Suyal
- Department of Microbiology, Akal College of Basic Sciences, Eternal University, Sirmaur, Himachal Pradesh, India
| | - Divya Joshi
- Uttarakhand Pollution Control Board, Regional Office, Kashipur, Uttarakhand, India
| | - Saurabh Kumar
- Division of Crop Research, Research Complex for Eastern Region, Patna, Bihar, India
| | - Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China
| | - Arun Narayan
- Forest Research Institute, Dehradun, 2480 06, India
| | - Krishna Giri
- Rain Forest Research Institute, Jorhat, 785 010, India
| | - Manali Singh
- Department of Biotechnology, Invertis Institute of Engineering and Technology (IIET), Invertis University, Bareilly, 243123, Uttar Pradesh, India
| | - Ravindra Soni
- Department of Agricultural Microbiology, College of Agriculture, Indira Gandhi Krishi Vishwa Vidyalaya, Raipur, Chhattisgarh, India
| | - Rakshak Kumar
- Department of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Ashok Yadav
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Rubee Devi
- Microbial Biotechnology Laboratory, Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, Himachal Pradesh, India
| | - Tanvir Kaur
- Microbial Biotechnology Laboratory, Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, Himachal Pradesh, India
| | - Divjot Kour
- Microbial Biotechnology Laboratory, Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, Himachal Pradesh, India
| | - Ajar Nath Yadav
- Microbial Biotechnology Laboratory, Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, Himachal Pradesh, India.
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29
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Wang B, Ye T, Li C, Li X, Chen L, Wang G. Cell damage repair mechanism in a desert green algae Chlorella sp. against UV-B radiation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113916. [PMID: 35878498 DOI: 10.1016/j.ecoenv.2022.113916] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
The protective ozone layer is continually depleting owing to an increase in the levels of solar UV-B radiation, which has harmful effects on organisms. Algae in desert soil can resist UV-B radiation, but most research on the radiation resistance of desert algae has focused on cyanobacteria. In this study, we found that desert green algae, Chlorella sp., could maintain high photosynthetic activity under UV-B stress. To examine the tolerance mechanism of the desert green algae photosystem, we observed the physiological and transcriptome-level responses of Chlorella sp. to high doses of UV-B radiation. The results showed that the reactive oxygen species (ROS) content first increased and then decreased, while the malondialdehyde (MDA) content revealed no notable lipid peroxidation during the UV-B exposure period. These results suggested that Chlorella sp. may have strong system characteristics for scavenging ROS. The antioxidant enzyme system showed efficient alternate coordination, which exhibited a protective effect against enhanced UV-B radiation. DNA damage and the chlorophyll and soluble protein contents had no significant changes in the early irradiation stage; UV-B radiation did not induce extracellular polysaccharides (EPS) synthesis. Transcriptomic data revealed that a strong photosynthetic system, efficient DNA repair, and changes in the expression of genes encoding ribosomal protein (which aid in protein synthesis and improve resistance) are responsible for the high UV-B tolerance characteristics of Chlorella sp. In contrast, EPS synthesis was not the main pathway for UV-B resistance. Our results revealed the potential cell damage repair mechanisms within Chlorella sp. that were associated with high intensity UV-B stress, thereby providing insights into the underlying regulatory adaptations of desert green algae.
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Affiliation(s)
- Bo Wang
- Jiangxi Key Laboratory of Industrial Ecological Simulation and Environmental Health in Yangtze River Basin, Jiujiang University, Jiujiang 332005, China; Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China; College of Resource & Environment, Jiujiang University, Jiujiang 332005, China
| | - Tong Ye
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Caiyan Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyan Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lanzhou Chen
- School of Resource and Environmental Sciences, Hubei Key Laboratory of Biomass-Resources Chemistry and Environmental Biotechnology, Wuhan University, China
| | - Gaohong Wang
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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30
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Prelle LR, Schmidt I, Schimani K, Zimmermann J, Abarca N, Skibbe O, Juchem D, Karsten U. Photosynthetic, Respirational, and Growth Responses of Six Benthic Diatoms from the Antarctic Peninsula as Functions of Salinity and Temperature Variations. Genes (Basel) 2022; 13:genes13071264. [PMID: 35886047 PMCID: PMC9324188 DOI: 10.3390/genes13071264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 02/04/2023] Open
Abstract
Temperature and salinity are some of the most influential abiotic parameters shaping biota in aquatic ecosystems. In recent decades, climate change has had a crucial impact on both factors—especially around the Antarctic Peninsula—with increasing air and water temperature leading to glacial melting and the accompanying freshwater increase in coastal areas. Antarctic soft and hard bottoms are typically inhabited by microphytobenthic communities, which are often dominated by benthic diatoms. Their physiology and primary production are assumed to be negatively affected by increased temperatures and lower salinity. In this study, six representative benthic diatom strains were isolated from different aquatic habitats at King George Island, Antarctic Peninsula, and comprehensively identified based on molecular markers and morphological traits. Photosynthesis, respiration, and growth response patterns were investigated as functions of varying light availability, temperature, and salinity. Photosynthesis−irradiance curve measurements pointed to low light requirements, as light-saturated photosynthesis was reached at <70 µmol photons m−2 s−1. The marine isolates exhibited the highest effective quantum yield between 25 and 45 SA (absolute salinity), but also tolerance to lower and higher salinities at 1 SA and 55 SA, respectively, and in a few cases even <100 SA. In contrast, the limnic isolates showed the highest effective quantum yield at salinities ranging from 1 SA to 20 SA. Almost all isolates exhibited high effective quantum yields between 1.5 °C and 25 °C, pointing to a broad temperature tolerance, which was supported by measurements of the short-term temperature-dependent photosynthesis. All studied Antarctic benthic diatoms showed activity patterns over a broader environmental range than they usually experience in situ. Therefore, it is likely that their high ecophysiological plasticity represents an important trait to cope with climate change in the Antarctic Peninsula.
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Affiliation(s)
- Lara R. Prelle
- Applied Ecology and Phycology, Institute of Biological Sciences, Albert-Einstein-Strasse 3, University of Rostock, 18057 Rostock, Germany; (L.R.P.); (I.S.); (D.J.)
| | - Ina Schmidt
- Applied Ecology and Phycology, Institute of Biological Sciences, Albert-Einstein-Strasse 3, University of Rostock, 18057 Rostock, Germany; (L.R.P.); (I.S.); (D.J.)
| | - Katherina Schimani
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, 14163 Berlin, Germany; (K.S.); (J.Z.); (N.A.); (O.S.)
| | - Jonas Zimmermann
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, 14163 Berlin, Germany; (K.S.); (J.Z.); (N.A.); (O.S.)
| | - Nelida Abarca
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, 14163 Berlin, Germany; (K.S.); (J.Z.); (N.A.); (O.S.)
| | - Oliver Skibbe
- Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, 14163 Berlin, Germany; (K.S.); (J.Z.); (N.A.); (O.S.)
| | - Desiree Juchem
- Applied Ecology and Phycology, Institute of Biological Sciences, Albert-Einstein-Strasse 3, University of Rostock, 18057 Rostock, Germany; (L.R.P.); (I.S.); (D.J.)
| | - Ulf Karsten
- Applied Ecology and Phycology, Institute of Biological Sciences, Albert-Einstein-Strasse 3, University of Rostock, 18057 Rostock, Germany; (L.R.P.); (I.S.); (D.J.)
- Correspondence:
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31
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Kania K, Levytska A, Drożak A, Andrzej B, Paweł D, Zienkiewicz M. The effect of temperature conditions during growth on the transformation frequency of Coccomyxa subellipsoidea C-169 obtained by electroporation. Biochem Biophys Rep 2022; 30:101220. [PMID: 35198739 PMCID: PMC8844808 DOI: 10.1016/j.bbrep.2022.101220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/27/2021] [Accepted: 01/22/2022] [Indexed: 10/26/2022] Open
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Zuo S, Yadala R, Yang F, Talbert P, Fuchs J, Schubert V, Ahmadli U, Rutten T, Pecinka A, Lysak MA, Lermontova I. Recurrent Plant-Specific Duplications of KNL2 and Its Conserved Function as a Kinetochore Assembly Factor. Mol Biol Evol 2022; 39:msac123. [PMID: 35671323 PMCID: PMC9210943 DOI: 10.1093/molbev/msac123] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/06/2022] [Accepted: 05/27/2022] [Indexed: 11/12/2022] Open
Abstract
KINETOCHORE NULL2 (KNL2) plays key role in the recognition of centromeres and new CENH3 deposition. To gain insight into the origin and diversification of the KNL2 gene, we reconstructed its evolutionary history in the plant kingdom. Our results indicate that the KNL2 gene in plants underwent three independent ancient duplications in ferns, grasses and eudicots. Additionally, we demonstrated that previously unclassified KNL2 genes could be divided into two clades αKNL2 and βKNL2 in eudicots and γKNL2 and δKNL2 in grasses, respectively. KNL2s of all clades encode the conserved SANTA domain, but only the αKNL2 and γKNL2 groups additionally encode the CENPC-k motif. In the more numerous eudicot sequences, signatures of positive selection were found in both αKNL2 and βKNL2 clades, suggesting recent or ongoing adaptation. The confirmed centromeric localization of βKNL2 and mutant analysis suggests that it participates in loading of new CENH3, similarly to αKNL2. A high rate of seed abortion was found in heterozygous βKNL2 plants and the germinated homozygous mutants did not develop beyond the seedling stage. Taken together, our study provides a new understanding of the evolutionary diversification of the plant kinetochore assembly gene KNL2, and suggests that the plant-specific duplicated KNL2 genes are involved in centromere and/or kinetochore assembly for preserving genome stability.
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Affiliation(s)
- Sheng Zuo
- Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Ramakrishna Yadala
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, D-06466 Seeland, Germany
| | - Fen Yang
- Institute of Experimental Botany, Czech Acad Sci, Centre of the Region Haná for Biotechnological and Agricultural Research, Šlechtitelů 31, 779 00 Olomouc, Czech Republic
- Department of Cell Biology and Genetics, Faculty of Science, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Paul Talbert
- Howard Hughes Medical Institute, Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Joerg Fuchs
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, D-06466 Seeland, Germany
| | - Veit Schubert
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, D-06466 Seeland, Germany
| | - Ulkar Ahmadli
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, D-06466 Seeland, Germany
| | - Twan Rutten
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, D-06466 Seeland, Germany
| | - Ales Pecinka
- Institute of Experimental Botany, Czech Acad Sci, Centre of the Region Haná for Biotechnological and Agricultural Research, Šlechtitelů 31, 779 00 Olomouc, Czech Republic
- Department of Cell Biology and Genetics, Faculty of Science, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
| | - Martin A Lysak
- Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Inna Lermontova
- Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, D-06466 Seeland, Germany
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Liu Y, Wei D, Chen W. Oleaginous Microalga Coccomyxa subellipsoidea as a Highly Effective Cell Factory for CO2 Fixation and High-Protein Biomass Production by Optimal Supply of Inorganic Carbon and Nitrogen. Front Bioeng Biotechnol 2022; 10:921024. [PMID: 35733523 PMCID: PMC9207446 DOI: 10.3389/fbioe.2022.921024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/02/2022] [Indexed: 12/03/2022] Open
Abstract
Microalgae used for CO2 biofixation can effectively relieve CO2 emissions and produce high-value biomass to achieve “waste-to-treasure” bioconversion. However, the low CO2 fixation efficiency and the restricted application of biomass are currently bottlenecks, limiting the economic viability of CO2 biofixation by microalgae. To achieve high-efficient CO2 fixation and high-protein biomass production, the oleaginous microalga Coccomyxa subellipsoidea (C. subellipsoidea) was cultivated autotrophically through optimizing inorganic carbon and nitrogen supply. 0.42 g L−1 NaHCO3 supplemented with 2% CO2 as a hybrid carbon source resulted in high biomass concentration (3.89 g L−1) and productivity (318.33) with CO2 fixation rate 544.21 mg L−1 d−1 in shake flasks. Then, used in a 5-L photo-fermenter, the maximal protein content (60.93% DW) in batch 1, and the highest CO2 fixation rate (1043.95 mg L−1 d−1) with protein content (58.48% DW) in batch 2 of repeated fed-batch cultures were achieved under 2.5 g L−1 nitrate. The relative expression of key genes involved in photosynthesis, glycolysis, and protein synthesis showed significant upregulation. This study developed a promising approach for enhancing carbon allocation to protein synthesis in oleaginous microalga, facilitating the bioconversion of the fixed carbon into algal protein instead of oil in green manufacturing.
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Affiliation(s)
- Yu Liu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou, China
| | - Dong Wei
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou, China
- Research Institute for Food Nutrition and Human Health, Guangzhou, China
- *Correspondence: Dong Wei,
| | - Weining Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
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Gilbertson R, Langan E, Mock T. Diatoms and Their Microbiomes in Complex and Changing Polar Oceans. Front Microbiol 2022; 13:786764. [PMID: 35401494 PMCID: PMC8991070 DOI: 10.3389/fmicb.2022.786764] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/23/2022] [Indexed: 11/17/2022] Open
Abstract
Diatoms, a key group of polar marine microbes, support highly productive ocean ecosystems. Like all life on earth, diatoms do not live in isolation, and they are therefore under constant biotic and abiotic pressures which directly influence their evolution through natural selection. Despite their importance in polar ecosystems, polar diatoms are understudied compared to temperate species. The observed rapid change in the polar climate, especially warming, has created increased research interest to discover the underlying causes and potential consequences on single species to entire ecosystems. Next-Generation Sequencing (NGS) technologies have greatly expanded our knowledge by revealing the molecular underpinnings of physiological adaptations to polar environmental conditions. Their genomes, transcriptomes, and proteomes together with the first eukaryotic meta-omics data of surface ocean polar microbiomes reflect the environmental pressures through adaptive responses such as the expansion of protein families over time as a consequence of selection. Polar regions and their microbiomes are inherently connected to climate cycles and their feedback loops. An integrated understanding built on “omics” resources centered around diatoms as key primary producers will enable us to reveal unifying concepts of microbial co-evolution and adaptation in polar oceans. This knowledge, which aims to relate past environmental changes to specific adaptations, will be required to improve climate prediction models for polar ecosystems because it provides a unifying framework of how interacting and co-evolving biological communities might respond to future environmental change.
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Affiliation(s)
- Reuben Gilbertson
- School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
| | - Emma Langan
- School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, United Kingdom.,The Earlham Institute, Norwich Research Park, Norwich, United Kingdom
| | - Thomas Mock
- School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
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35
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Romero-Losada AB, Arvanitidou C, de Los Reyes P, García-González M, Romero-Campero FJ. ALGAEFUN with MARACAS, microALGAE FUNctional enrichment tool for MicroAlgae RnA-seq and Chip-seq AnalysiS. BMC Bioinformatics 2022; 23:113. [PMID: 35361110 PMCID: PMC8973887 DOI: 10.1186/s12859-022-04639-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/17/2022] [Indexed: 01/22/2023] Open
Abstract
Background Microalgae are emerging as promising sustainable sources for biofuels, biostimulants in agriculture, soil bioremediation, feed and human nutrients. Nonetheless, the molecular mechanisms underpinning microalgae physiology and the biosynthesis of compounds of biotechnological interest are largely uncharacterized. This hinders the development of microalgae full potential as cell-factories. The recent application of omics technologies into microalgae research aims at unraveling these systems. Nevertheless, the lack of specific tools for analysing omics raw data generated from microalgae to provide biological meaningful information are hampering the impact of these technologies. The purpose of ALGAEFUN with MARACAS consists in providing researchers in microalgae with an enabling tool that will allow them to exploit transcriptomic and cistromic high-throughput sequencing data. Results ALGAEFUN with MARACAS consists of two different tools. First, MARACAS (MicroAlgae RnA-seq and Chip-seq AnalysiS) implements a fully automatic computational pipeline receiving as input RNA-seq (RNA sequencing) or ChIP-seq (chromatin immunoprecipitation sequencing) raw data from microalgae studies. MARACAS generates sets of differentially expressed genes or lists of genomic loci for RNA-seq and ChIP-seq analysis respectively. Second, ALGAEFUN (microALGAE FUNctional enrichment tool) is a web-based application where gene sets generated from RNA-seq analysis as well as lists of genomic loci from ChIP-seq analysis can be used as input. On the one hand, it can be used to perform Gene Ontology and biological pathways enrichment analysis over gene sets. On the other hand, using the results of ChIP-seq data analysis, it identifies a set of potential target genes and analyses the distribution of the loci over gene features. Graphical representation of the results as well as tables with gene annotations are generated and can be downloaded for further analysis. Conclusions ALGAEFUN with MARACAS provides an integrated environment for the microalgae research community that facilitates the process of obtaining relevant biological information from raw RNA-seq and ChIP-seq data. These applications are designed to assist researchers in the interpretation of gene lists and genomic loci based on functional enrichment analysis. ALGAEFUN with MARACAS is publicly available on https://greennetwork.us.es/AlgaeFUN/.
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Affiliation(s)
- Ana B Romero-Losada
- Institute for Plant Biochemistry and Photosynthesis, Universidad de Sevilla - Consejo Superior de Investigaciones Científicas, Centro de Investigaciones Científicas Isla de La Cartuja, Avenida Américo Vespucio 49, 41092, Seville, Spain.,Department of Computer Science and Artificial Intelligence, University of Sevilla, Escuela Técnica Superior en Ingeniería Informática, Avenida Reina Mercedes s/n, 41012, Seville, Spain
| | - Christina Arvanitidou
- Institute for Plant Biochemistry and Photosynthesis, Universidad de Sevilla - Consejo Superior de Investigaciones Científicas, Centro de Investigaciones Científicas Isla de La Cartuja, Avenida Américo Vespucio 49, 41092, Seville, Spain.,Department of Computer Science and Artificial Intelligence, University of Sevilla, Escuela Técnica Superior en Ingeniería Informática, Avenida Reina Mercedes s/n, 41012, Seville, Spain
| | - Pedro de Los Reyes
- Institute for Plant Biochemistry and Photosynthesis, Universidad de Sevilla - Consejo Superior de Investigaciones Científicas, Centro de Investigaciones Científicas Isla de La Cartuja, Avenida Américo Vespucio 49, 41092, Seville, Spain
| | - Mercedes García-González
- Institute for Plant Biochemistry and Photosynthesis, Universidad de Sevilla - Consejo Superior de Investigaciones Científicas, Centro de Investigaciones Científicas Isla de La Cartuja, Avenida Américo Vespucio 49, 41092, Seville, Spain
| | - Francisco J Romero-Campero
- Institute for Plant Biochemistry and Photosynthesis, Universidad de Sevilla - Consejo Superior de Investigaciones Científicas, Centro de Investigaciones Científicas Isla de La Cartuja, Avenida Américo Vespucio 49, 41092, Seville, Spain. .,Department of Computer Science and Artificial Intelligence, University of Sevilla, Escuela Técnica Superior en Ingeniería Informática, Avenida Reina Mercedes s/n, 41012, Seville, Spain.
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Repetti SI, Iha C, Uthanumallian K, Jackson CJ, Chen Y, Chan CX, Verbruggen H. Nuclear genome of a pedinophyte pinpoints genomic innovation and streamlining in the green algae. THE NEW PHYTOLOGIST 2022; 233:2144-2154. [PMID: 34923642 DOI: 10.1111/nph.17926] [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: 09/26/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
The genomic diversity underpinning high ecological and species diversity in the green algae (Chlorophyta) remains little known. Here, we aimed to track genome evolution in the Chlorophyta, focusing on loss and gain of homologous genes, and lineage-specific innovations of the core Chlorophyta. We generated a high-quality nuclear genome for pedinophyte YPF701, a sister lineage to others in the core Chlorophyta and incorporated this genome in a comparative analysis with 25 other genomes from diverse Viridiplantae taxa. The nuclear genome of pedinophyte YPF701 has an intermediate size and gene number between those of most prasinophytes and the remainder of the core Chlorophyta. Our results suggest positive selection for genome streamlining in the Pedinophyceae, independent from genome minimisation observed among prasinophyte lineages. Genome expansion was predicted along the branch leading to the UTC clade (classes Ulvophyceae, Trebouxiophyceae and Chlorophyceae) after divergence from their last common ancestor with pedinophytes, with genomic novelty implicated in a range of basic biological functions. Results emphasise multiple independent signals of genome minimisation within the Chlorophyta, as well as the genomic novelty arising before diversification in the UTC clade, which may underpin the success of this species-rich clade in a diversity of habitats.
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Affiliation(s)
- Sonja I Repetti
- School of BioSciences, University of Melbourne, Melbourne, Vic, 3010, Australia
| | - Cintia Iha
- School of BioSciences, University of Melbourne, Melbourne, Vic, 3010, Australia
| | | | | | - Yibi Chen
- School of Chemistry and Molecular Biosciences, Australian Centre for Ecogenomics, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - Cheong Xin Chan
- School of Chemistry and Molecular Biosciences, Australian Centre for Ecogenomics, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - Heroen Verbruggen
- School of BioSciences, University of Melbourne, Melbourne, Vic, 3010, Australia
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Zhu Q, Zhang M, Liu B, Wen F, Yang Z, Liu J. Transcriptome and Metabolome Profiling of a Novel Isolate Chlorella sorokiniana G32 (Chlorophyta) Displaying Enhanced Starch Accumulation at High Growth Rate Under Mixotrophic Condition. Front Microbiol 2022; 12:760307. [PMID: 35069466 PMCID: PMC8770532 DOI: 10.3389/fmicb.2021.760307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/30/2021] [Indexed: 12/13/2022] Open
Abstract
Chlorella sorokiniana is one of the most productive microalgal species with a high potential for the production of biofuels and other high value-added molecules. Many studies have focused on its capability of mixotrophic growth using reduced organic carbon and growth pattern shift between autotrophic and mixotrophic conditions. In this study, we investigated growth patterns of a novel isolate, C. sorokiniana G32, under mixotrophic growth conditions supplemented with a low level (1.25 g L-1) and a high level (5 g L-1) of glucose. Physiological, transcriptomic (i.e., RNA-seq), and metabolomic (i.e., LC-MS/MS) methods were used. We showed that peak growth based on OD680nm absorbance is ∼4-fold higher with high glucose vs. low glucose supplementation. Photosynthetic efficiency (Fv/Fm) in G32 mixotrophic cultures with high or low glucose supplementation remains identical to that of G32 phototrophic growth. We also found that the conversion rate between absorbance-based cell density and cell dry weight with high glucose supplementation was lower than with low glucose. This suggests that more cell biomass is produced under high glucose treatment than with low glucose. The result was confirmed via sucrose density gradient centrifugation. It is likely that accumulation of high concentration of starch may account for this effect. Transcriptomic analysis of G32 cultures (i.e., via RNA-seq) in response to reciprocal change of glucose levels reveals that expression of a subset of differentially expressed genes (DEGs) is correlated with the amount of glucose supplementation. These DEGs are designated as glucose-specific responsive (GSR) genes. GSR genes are enriched for a number of energy metabolic pathways. Together with metabolomics data (i.e., LC-MS/MS), we show that under high-level supplementation, glucose is preferentially oxidized through an oxidative pentose phosphate pathway. Collectively, our results indicate the mechanism of regulation of glucose assimilation and energy metabolism in G32 under mixotrophic conditions with different levels of glucose supplementation revealed by transcriptomic and metabolomic analyses. We propose that C. sorokiniana G32 has the potential for the production of high value-added molecules.
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Affiliation(s)
- Qingling Zhu
- Systems Biology, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, China
| | - Mengmeng Zhang
- Systems Biology, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, China
| | - Bingying Liu
- Marine Biology, Ocean College, Zhejiang University, Zhoushan, China
| | - Fang Wen
- Marine Biology, Ocean College, Zhejiang University, Zhoushan, China
| | - Zhili Yang
- Systems Biology, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, China
| | - Jianhua Liu
- Systems Biology, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, China
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China
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38
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Jakhwal P, Kumar Biswas J, Tiwari A, Kwon EE, Bhatnagar A. Genetic and non-genetic tailoring of microalgae for the enhanced production of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) - A review. BIORESOURCE TECHNOLOGY 2022; 344:126250. [PMID: 34728356 DOI: 10.1016/j.biortech.2021.126250] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
The myriad health benefits associated with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) laid the path for their application in the functional foods and nutraceutical industries. Fish being primarily exploited for extraction of EPA and DHA are unsustainable sources; thus, oleaginous microalgae turn out to be an alternative sustainable source. This review paper aims to provide the recent developments in the context of enhancing EPA and DHA production by utilising non-genetic tailoring and genetic tailoring methods. We have also summarized the legislation, public perception, and possible risks associated with the usage of genetically modified microalgae focusing on EPA and DHA production.
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Affiliation(s)
- Parul Jakhwal
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130, Mikkeli, Finland
| | - Jayanta Kumar Biswas
- Enviromicrobiology, Ecotoxicology and Ecotechnology Research Laboratory, Department of Ecological Studies, University of Kalyani, Kalyani, Nadia 741235, West Bengal, India; International Centre for Ecological Engineering, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Archana Tiwari
- Diatom Research Laboratory, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201301, India
| | - Eilhann E Kwon
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130, Mikkeli, Finland.
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Cvetkovska M, Zhang X, Vakulenko G, Benzaquen S, Szyszka-Mroz B, Malczewski N, Smith DR, Hüner NPA. A constitutive stress response is a result of low temperature growth in the Antarctic green alga Chlamydomonas sp. UWO241. PLANT, CELL & ENVIRONMENT 2022; 45:156-177. [PMID: 34664276 DOI: 10.1111/pce.14203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/25/2021] [Accepted: 08/28/2021] [Indexed: 06/13/2023]
Abstract
The Antarctic green alga Chlamydomonas sp. UWO241 is an obligate psychrophile that thrives in the cold (4-6°C) but is unable to survive at temperatures ≥18°C. Little is known how exposure to heat affects its physiology or whether it mounts a heat stress response in a manner comparable to mesophiles. Here, we dissect the responses of UWO241 to temperature stress by examining its growth, primary metabolome and transcriptome under steady-state low temperature and heat stress conditions. In comparison with Chlamydomonas reinhardtii, UWO241 constitutively accumulates metabolites and proteins commonly considered as stress markers, including soluble sugars, antioxidants, polyamines, and heat shock proteins to ensure efficient protein folding at low temperatures. We propose that this results from life at extreme conditions. A shift from 4°C to a non-permissive temperature of 24°C alters the UWO241 primary metabolome and transcriptome, but growth of UWO241 at higher permissive temperatures (10 and 15°C) does not provide enhanced heat protection. UWO241 also fails to induce the accumulation of HSPs when exposed to heat, suggesting that it has lost the ability to fine-tune its heat stress response. Our work adds to the growing body of research on temperature stress in psychrophiles, many of which are threatened by climate change.
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Affiliation(s)
- Marina Cvetkovska
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Xi Zhang
- Department of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, Ontario, Canada
| | - Galyna Vakulenko
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Samuel Benzaquen
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Beth Szyszka-Mroz
- Department of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, Ontario, Canada
| | - Nina Malczewski
- Department of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, Ontario, Canada
| | - David R Smith
- Department of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, Ontario, Canada
| | - Norman P A Hüner
- Department of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, Ontario, Canada
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40
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Hüner NPA, Smith DR, Cvetkovska M, Zhang X, Ivanov AG, Szyszka-Mroz B, Kalra I, Morgan-Kiss R. Photosynthetic adaptation to polar life: Energy balance, photoprotection and genetic redundancy. JOURNAL OF PLANT PHYSIOLOGY 2022; 268:153557. [PMID: 34922115 DOI: 10.1016/j.jplph.2021.153557] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/27/2021] [Accepted: 10/24/2021] [Indexed: 06/14/2023]
Abstract
The persistent low temperature that characterize polar habitats combined with the requirement for light for all photoautotrophs creates a conundrum. The absorption of too much light at low temperature can cause an energy imbalance that decreases photosynthetic performance that has a negative impact on growth and can affect long-term survival. The goal of this review is to survey the mechanism(s) by which polar photoautotrophs maintain cellular energy balance, that is, photostasis to overcome the potential for cellular energy imbalance in their low temperature environments. Photopsychrophiles are photosynthetic organisms that are obligately adapted to low temperature (0⁰- 15 °C) but usually die at higher temperatures (≥20 °C). In contrast, photopsychrotolerant species can usually tolerate and survive a broad range of temperatures (5⁰- 40 °C). First, we summarize the basic concepts of excess excitation energy, energy balance, photoprotection and photostasis and their importance to survival in polar habitats. Second, we compare the photoprotective mechanisms that underlie photostasis and survival in aquatic cyanobacteria and green algae as well as terrestrial Antarctic and Arctic plants. We show that polar photopsychrophilic and photopsychrotolerant organisms attain energy balance at low temperature either through a regulated reduction in the efficiency of light absorption or through enhanced capacity to consume photosynthetic electrons by the induction of O2 as an alternative electron acceptor. Finally, we compare the published genomes of three photopsychrophilic and one photopsychrotolerant alga with five mesophilic green algae including the model green alga, Chlamydomonas reinhardtii. We relate our genomic analyses to photoprotective mechanisms that contribute to the potential attainment of photostasis. Finally, we discuss how the observed genomic redundancy in photopsychrophilic genomes may confer energy balance, photoprotection and resilience to their harsh polar environment. Primary production in aquatic, Antarctic and Arctic environments is dependent on diverse algal and cyanobacterial communities. Although mosses and lichens dominate the Antarctic terrestrial landscape, only two extant angiosperms exist in the Antarctic. The identification of a single 'molecular key' to unravel adaptation of photopsychrophily and photopsychrotolerance remains elusive. Since these photoautotrophs represent excellent biomarkers to assess the impact of global warming on polar ecosystems, increased study of these polar photoautotrophs remains essential.
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Affiliation(s)
- Norman P A Hüner
- Dept. of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, N6A 5B7, Canada.
| | - David R Smith
- Dept. of Biology, University of Western Ontario, London, N6A 5B7, Canada.
| | | | - Xi Zhang
- Dept. of Biology, University of Western Ontario, London, N6A 5B7, Canada.
| | - Alexander G Ivanov
- Dept. of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, N6A 5B7, Canada; Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, 1113, Bulgaria.
| | - Beth Szyszka-Mroz
- Dept. of Biology and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, N6A 5B7, Canada.
| | - Isha Kalra
- Dept. of Microbiology, Miami University of Ohio, Oxford, OH, 45056, USA.
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Kselíková V, Singh A, Bialevich V, Čížková M, Bišová K. Improving microalgae for biotechnology - From genetics to synthetic biology - Moving forward but not there yet. Biotechnol Adv 2021; 58:107885. [PMID: 34906670 DOI: 10.1016/j.biotechadv.2021.107885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/28/2021] [Accepted: 12/07/2021] [Indexed: 12/28/2022]
Abstract
Microalgae are a diverse group of photosynthetic organisms that can be exploited for the production of different compounds, ranging from crude biomass and biofuels to high value-added biochemicals and synthetic proteins. Traditionally, algal biotechnology relies on bioprospecting to identify new highly productive strains and more recently, on forward genetics to further enhance productivity. However, it has become clear that further improvements in algal productivity for biotechnology is impossible without combining traditional tools with the arising molecular genetics toolkit. We review recent advantages in developing high throughput screening methods, preparing genome-wide mutant libraries, and establishing genome editing techniques. We discuss how algae can be improved in terms of photosynthetic efficiency, biofuel and high value-added compound production. Finally, we critically evaluate developments over recent years and explore future potential in the field.
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Affiliation(s)
- Veronika Kselíková
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic; Faculty of Science, University of South Bohemia, 37005 České Budějovice, Czech Republic
| | - Anjali Singh
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic
| | - Vitali Bialevich
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic
| | - Mária Čížková
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic
| | - Kateřina Bišová
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic.
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Völkner C, Holzner LJ, Day PM, Ashok AD, de Vries J, Bölter B, Kunz HH. Two plastid POLLUX ion channel-like proteins are required for stress-triggered stromal Ca2+release. PLANT PHYSIOLOGY 2021; 187:2110-2125. [PMID: 34618095 PMCID: PMC8644588 DOI: 10.1093/plphys/kiab424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Two decades ago, large cation currents were discovered in the envelope membranes of Pisum sativum L. (pea) chloroplasts. The deduced K+-permeable channel was coined fast-activating chloroplast cation channel but its molecular identity remained elusive. To reveal candidates, we mined proteomic datasets of isolated pea envelopes. Our search uncovered distant members of the nuclear POLLUX ion channel family. Since pea is not amenable to molecular genetics, we used Arabidopsis thaliana to characterize the two gene homologs. Using several independent approaches, we show that both candidates localize to the chloroplast envelope membrane. The proteins, designated PLASTID ENVELOPE ION CHANNELS (PEC1/2), form oligomers with regulator of K+ conductance domains protruding into the intermembrane space. Heterologous expression of PEC1/2 rescues yeast mutants deficient in K+ uptake. Nuclear POLLUX ion channels cofunction with Ca2+ channels to generate Ca2+ signals, critical for establishing mycorrhizal symbiosis and root development. Chloroplasts also exhibit Ca2+ transients in the stroma, probably to relay abiotic and biotic cues between plastids and the nucleus via the cytosol. Our results show that pec1pec2 loss-of-function double mutants fail to trigger the characteristic stromal Ca2+ release observed in wild-type plants exposed to external stress stimuli. Besides this molecular abnormality, pec1pec2 double mutants do not show obvious phenotypes. Future studies of PEC proteins will help to decipher the plant's stress-related Ca2+ signaling network and the role of plastids. More importantly, the discovery of PECs in the envelope membrane is another critical step towards completing the chloroplast ion transport protein inventory.
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Affiliation(s)
- Carsten Völkner
- School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Lorenz Josef Holzner
- Department of Plant Biochemistry, LMU Munich, 82152 Planegg-Martinsried, Germany
| | - Philip M Day
- School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
| | - Amra Dhabalia Ashok
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, 37077 Göttingen,Germany
- International Max Planck Research School for Genome Science, 37077 Göttingen, Germany
| | - Jan de Vries
- Department of Applied Bioinformatics, University of Goettingen, Institute for Microbiology and Genetics, 37077 Göttingen,Germany
- International Max Planck Research School for Genome Science, 37077 Göttingen, Germany
- Applied Bioinformatics, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Göttingen,Germany
- Campus Institute Data Science (CIDAS), University of Goettingen, 37077 Göttingen, Germany
| | - Bettina Bölter
- Department of Plant Biochemistry, LMU Munich, 82152 Planegg-Martinsried, Germany
| | - Hans-Henning Kunz
- School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
- Department of Plant Biochemistry, LMU Munich, 82152 Planegg-Martinsried, Germany
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43
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Physiological and transcriptome analysis of γ-aminobutyric acid (GABA) in improving Gracilariopsis lemaneiformis stress tolerance at high temperatures. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Aburai N, Nishida A, Abe K. Aerial microalgae Coccomyxa simplex isolated from a low-temperature, low-light environment, and its biofilm growth and lipid accumulation. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102522] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Abstract
To conserve water in arid environments, numerous plant lineages have independently evolved Crassulacean Acid Metabolism (CAM). Interestingly, Isoetes, an aquatic lycophyte, can also perform CAM as an adaptation to low CO2 availability underwater. However, little is known about the evolution of CAM in aquatic plants and the lack of genomic data has hindered comparison between aquatic and terrestrial CAM. Here, we investigate underwater CAM in Isoetes taiwanensis by generating a high-quality genome assembly and RNA-seq time course. Despite broad similarities between CAM in Isoetes and terrestrial angiosperms, we identify several key differences. Notably, Isoetes may have recruited the lesser-known 'bacterial-type' PEPC, along with the 'plant-type' exclusively used in other CAM and C4 plants for carboxylation of PEP. Furthermore, we find that circadian control of key CAM pathway genes has diverged considerably in Isoetes relative to flowering plants. This suggests the existence of more evolutionary paths to CAM than previously recognized.
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46
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Marine Polymer-Gels' Relevance in the Atmosphere as Aerosols and CCN. Gels 2021; 7:gels7040185. [PMID: 34842644 PMCID: PMC8628772 DOI: 10.3390/gels7040185] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/21/2021] [Accepted: 10/23/2021] [Indexed: 11/23/2022] Open
Abstract
Marine polymer gels play a critical role in regulating ocean basin scale biogeochemical dynamics. This brief review introduces the crucial role of marine gels as a source of aerosol particles and cloud condensation nuclei (CCN) in cloud formation processes, emphasizing Arctic marine microgels. We review the gel’s composition and relation to aerosols, their emergent properties, and physico-chemical processes that explain their change in size spectra, specifically in relation to aerosols and CCN. Understanding organic aerosols and CCN in this context provides clear benefits to quantifying the role of marine nanogel/microgel in microphysical processes leading to cloud formation. This review emphasizes the DOC-marine gel/aerosolized gel-cloud link, critical to developing accurate climate models.
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Nelson DR, Hazzouri KM, Lauersen KJ, Jaiswal A, Chaiboonchoe A, Mystikou A, Fu W, Daakour S, Dohai B, Alzahmi A, Nobles D, Hurd M, Sexton J, Preston MJ, Blanchette J, Lomas MW, Amiri KMA, Salehi-Ashtiani K. Large-scale genome sequencing reveals the driving forces of viruses in microalgal evolution. Cell Host Microbe 2021; 29:250-266.e8. [PMID: 33434515 DOI: 10.1016/j.chom.2020.12.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/08/2020] [Accepted: 11/18/2020] [Indexed: 01/08/2023]
Abstract
Being integral primary producers in diverse ecosystems, microalgal genomes could be mined for ecological insights, but representative genome sequences are lacking for many phyla. We cultured and sequenced 107 microalgae species from 11 different phyla indigenous to varied geographies and climates. This collection was used to resolve genomic differences between saltwater and freshwater microalgae. Freshwater species showed domain-centric ontology enrichment for nuclear and nuclear membrane functions, while saltwater species were enriched in organellar and cellular membrane functions. Further, marine species contained significantly more viral families in their genomes (p = 8e-4). Sequences from Chlorovirus, Coccolithovirus, Pandoravirus, Marseillevirus, Tupanvirus, and other viruses were found integrated into the genomes of algal from marine environments. These viral-origin sequences were found to be expressed and code for a wide variety of functions. Together, this study comprehensively defines the expanse of protein-coding and viral elements in microalgal genomes and posits a unified adaptive strategy for algal halotolerance.
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Affiliation(s)
- David R Nelson
- Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, UAE.
| | - Khaled M Hazzouri
- Khalifa Center for Genetic Engineering and Biotechnology (KCGEB), UAE University, Al Ain, Abu Dhabi, UAE; Biology Department, College of Science, UAE University, Al Ain, Abu Dhabi, UAE
| | - Kyle J Lauersen
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Ashish Jaiswal
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | | | - Alexandra Mystikou
- Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Weiqi Fu
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Sarah Daakour
- Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Bushra Dohai
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Amnah Alzahmi
- Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, UAE
| | - David Nobles
- UTEX Culture Collection of Algae at the University of Texas at Austin, Austin, TX, USA
| | - Mark Hurd
- National Center for Marine Algae and Microbiota, East Boothbay, ME, USA
| | - Julie Sexton
- National Center for Marine Algae and Microbiota, East Boothbay, ME, USA
| | - Michael J Preston
- National Center for Marine Algae and Microbiota, East Boothbay, ME, USA
| | - Joan Blanchette
- National Center for Marine Algae and Microbiota, East Boothbay, ME, USA
| | - Michael W Lomas
- National Center for Marine Algae and Microbiota, East Boothbay, ME, USA
| | - Khaled M A Amiri
- Khalifa Center for Genetic Engineering and Biotechnology (KCGEB), UAE University, Al Ain, Abu Dhabi, UAE; Biology Department, College of Science, UAE University, Al Ain, Abu Dhabi, UAE
| | - Kourosh Salehi-Ashtiani
- Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, UAE; Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE.
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48
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Chaux-Jukic F, O'Donnell S, Craig RJ, Eberhard S, Vallon O, Xu Z. Architecture and evolution of subtelomeres in the unicellular green alga Chlamydomonas reinhardtii. Nucleic Acids Res 2021; 49:7571-7587. [PMID: 34165564 PMCID: PMC8287924 DOI: 10.1093/nar/gkab534] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/01/2021] [Accepted: 06/08/2021] [Indexed: 02/06/2023] Open
Abstract
In most eukaryotes, subtelomeres are dynamic genomic regions populated by multi-copy sequences of different origins, which can promote segmental duplications and chromosomal rearrangements. However, their repetitive nature has complicated the efforts to sequence them, analyse their structure and infer how they evolved. Here, we use recent genome assemblies of Chlamydomonas reinhardtii based on long-read sequencing to comprehensively describe the subtelomere architecture of the 17 chromosomes of this model unicellular green alga. We identify three main repeated elements present at subtelomeres, which we call Sultan, Subtile and Suber, alongside three chromosome extremities with ribosomal DNA as the only identified component of their subtelomeres. The most common architecture, present in 27 out of 34 subtelomeres, is a heterochromatic array of Sultan elements adjacent to the telomere, followed by a transcribed Spacer sequence, a G-rich microsatellite and transposable elements. Sequence similarity analyses suggest that Sultan elements underwent segmental duplications within each subtelomere and rearranged between subtelomeres at a much lower frequency. Analysis of other green algae reveals species-specific repeated elements that are shared across subtelomeres, with an overall organization similar to C. reinhardtii. This work uncovers the complexity and evolution of subtelomere architecture in green algae.
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Affiliation(s)
- Frédéric Chaux-Jukic
- Sorbonne Université, CNRS, UMR7238, Institut de Biologie Paris-Seine, Laboratory of Computational and Quantitative Biology, 75005 Paris, France
| | - Samuel O'Donnell
- Sorbonne Université, CNRS, UMR7238, Institut de Biologie Paris-Seine, Laboratory of Computational and Quantitative Biology, 75005 Paris, France
| | - Rory J Craig
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL, Edinburgh, UK
| | - Stephan Eberhard
- Sorbonne Université, CNRS, UMR7141, Institut de Biologie Physico-Chimique, Laboratory of Chloroplast Biology and Light-Sensing in Microalgae, 75005 Paris, France
| | - Olivier Vallon
- Sorbonne Université, CNRS, UMR7141, Institut de Biologie Physico-Chimique, Laboratory of Chloroplast Biology and Light-Sensing in Microalgae, 75005 Paris, France
| | - Zhou Xu
- Sorbonne Université, CNRS, UMR7238, Institut de Biologie Paris-Seine, Laboratory of Computational and Quantitative Biology, 75005 Paris, France
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49
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de Vries S, Fürst-Jansen JMR, Irisarri I, Dhabalia Ashok A, Ischebeck T, Feussner K, Abreu IN, Petersen M, Feussner I, de Vries J. The evolution of the phenylpropanoid pathway entailed pronounced radiations and divergences of enzyme families. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:975-1002. [PMID: 34165823 DOI: 10.1111/tpj.15387] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 06/11/2021] [Accepted: 06/21/2021] [Indexed: 05/20/2023]
Abstract
Land plants constantly respond to fluctuations in their environment. Part of their response is the production of a diverse repertoire of specialized metabolites. One of the foremost sources for metabolites relevant to environmental responses is the phenylpropanoid pathway, which was long thought to be a land-plant-specific adaptation shaped by selective forces in the terrestrial habitat. Recent data have, however, revealed that streptophyte algae, the algal relatives of land plants, have candidates for the genetic toolkit for phenylpropanoid biosynthesis and produce phenylpropanoid-derived metabolites. Using phylogenetic and sequence analyses, we here show that the enzyme families that orchestrate pivotal steps in phenylpropanoid biosynthesis have independently undergone pronounced radiations and divergence in multiple lineages of major groups of land plants; sister to many of these radiated gene families are streptophyte algal candidates for these enzymes. These radiations suggest a high evolutionary versatility in the enzyme families involved in the phenylpropanoid-derived metabolism across embryophytes. We suggest that this versatility likely translates into functional divergence, and may explain the key to one of the defining traits of embryophytes: a rich specialized metabolism.
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Affiliation(s)
- Sophie de Vries
- Population Genetics, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen, Goldschmidtstr. 1, 37077, Goettingen, Germany
| | - Janine M R Fürst-Jansen
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen, Goldschmidtstr. 1, 37077, Goettingen, Germany
| | - Iker Irisarri
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen, Goldschmidtstr. 1, 37077, Goettingen, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077, Goettingen, Germany
| | - Amra Dhabalia Ashok
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen, Goldschmidtstr. 1, 37077, Goettingen, Germany
| | - Till Ischebeck
- Department of Plant Biochemistry, University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
- Goettingen Center for Molecular Biosciences (GZMB), Goettingen Metabolomics and Lipidomics Laboratory, University of Goettingen, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
- Department of Plant Biochemistry, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
| | - Kirstin Feussner
- Department of Plant Biochemistry, University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
- Goettingen Center for Molecular Biosciences (GZMB), Goettingen Metabolomics and Lipidomics Laboratory, University of Goettingen, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
| | - Ilka N Abreu
- Department of Plant Biochemistry, University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
| | - Maike Petersen
- Institut für Pharmazeutische Biologie und Biotechnologie, Philipps-Universität Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany
| | - Ivo Feussner
- Department of Plant Biochemistry, University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
- Goettingen Center for Molecular Biosciences (GZMB), Goettingen Metabolomics and Lipidomics Laboratory, University of Goettingen, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
- Department of Plant Biochemistry, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Justus-von-Liebig Weg 11, 37077, Goettingen, Germany
| | - Jan de Vries
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen, Goldschmidtstr. 1, 37077, Goettingen, Germany
- University of Goettingen, Campus Institute Data Science (CIDAS), Goldschmidstr. 1, 37077, Goettingen, Germany
- Department of Applied Bioinformatics, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Goldschmidtsr. 1, 37077, Goettingen, Germany
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50
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Nayar S, Thangavel G. CsubMADS1, a lag phase transcription factor, controls development of polar eukaryotic microalga Coccomyxa subellipsoidea C-169. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:1228-1242. [PMID: 34160095 DOI: 10.1111/tpj.15380] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/30/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
MADS-box transcription factors (TFs) have not been functionally delineated in microalgae. In this study, the role of CsubMADS1 from microalga Coccomyxa subellipsoidea C-169 has been explored. Unlike Type II MADS-box proteins of seed plants with MADS, Intervening, K-box, and C domains, CsubMADS1 only has MADS and Intervening domains. It forms a group with MADS TFs from algae in the phylogenetic tree within the Type II MIKCC clade. CsubMADS1 is expressed strongly in the lag phase of growth. The CsubMADS1 monomer does not have a specific localization in the nucleus, and it forms homodimers to localize exclusively in the nucleus. The monomer has two nuclear localization signals (NLSs): an N-terminal NLS and an internal NLS. The internal NLS is functional, and the homodimer requires two NLSs for specific nuclear localization. Overexpression (OX) of CsubMADS1 slows down the growth of the culture and leads to the creation of giant polyploid multinucleate cells, resembling autospore mother cells. This implies that the release of autospores from autospore mother cells may be delayed. Thus, in wild-type (WT) cells, CsubMADS1 may play a crucial role in slowing down growth during the lag phase. Due to starvation in 2-month-old colonies on solid media, the WT colonies produce mucilage, whereas OX colonies produce significantly less mucilage. Thus, CsubMADS1 also negatively regulates stress-induced mucilage production and probably plays a role in stress tolerance during the lag phase. Taken together, our results reveal that CsubMADS1 is a key TF involved in the development and stress tolerance of this polar microalga.
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Affiliation(s)
- Saraswati Nayar
- Division of Plant Molecular Biology, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, 695014, India
| | - Gokilavani Thangavel
- Division of Plant Molecular Biology, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, 695014, India
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