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Li X, Ma Y, Zhang N, Li Y, Liang Z, Luo Y, Lin L, Zhang D, He Y, Wang Z, Zhang Z, Deng Y. Whole-genome sequencing of Fusarium spp. causing sugarcane root rot on both chewing cane and sugar-making cane. STRESS BIOLOGY 2024; 4:7. [PMID: 38270818 PMCID: PMC10811303 DOI: 10.1007/s44154-023-00145-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 12/24/2023] [Indexed: 01/26/2024]
Abstract
Previously we isolated three Fusarium strains (a F. sacchari strain namely GXUF-1, and another two F. commune strains namely GXUF-2 and GXUF-3), and we verified that GXUF-3 was able to cause sugarcane root rot to the chewing cane cultivar Badila. Considering that Fusarium spp. are a group of widely distributed fungal pathogens, we tested whether these three Fusarium isolates were able to cause root rot to Badila as well as sugar-making cane cultivar (Guitang42), using a suitable inoculation method established based on infection assays using Badila. We found that the three Fusarium strains were able to cause root rot symptoms to both Badila and Guitang42, to different extents. To better investigate the potential pathogenicity mechanisms, we performed Illumina high-throughput sequencing and analyzed the whole genomic sequence data of these three Fusarium strains. The results reveal that the assembly sizes of the three Fusarium strains were in a range of 44.7-48.2 Mb, with G + C contents of 48.0-48.5%, and 14,154-15,175 coding genes. The coding genes were annotated by multiple public databases, and potential pathogenic genes were predicted using proprietary databases (such as PHI, DFVF, CAZy, etc.). Furthermore, based on evolutionary analysis of the coding sequence, we found that contraction and expansion of gene families occurred in the three Fusarium strains. Overall, our results suggest a potential risk that the root rot disease may occur to the sugar-making canes although it was initially spotted from fruit cane, and provide clues to understand the pathogenic mechanisms of Fusarium spp. causing sugarcane root rot.
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Affiliation(s)
- Xinyang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Yuming Ma
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, 510642, China
| | - Na Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, 510642, China
| | - Yiming Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Zhibin Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, 510642, China
| | - Yibao Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Longxin Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Dongliang Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Yongqiang He
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Ziting Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Zhiquan Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Yizhen Deng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, 510642, China.
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Pompei S, Bella E, Weitz JS, Grilli J, Lagomarsino MC. Metacommunity structure preserves genome diversity in the presence of gene-specific selective sweeps under moderate rates of horizontal gene transfer. PLoS Comput Biol 2023; 19:e1011532. [PMID: 37792894 PMCID: PMC10578598 DOI: 10.1371/journal.pcbi.1011532] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 10/16/2023] [Accepted: 09/19/2023] [Indexed: 10/06/2023] Open
Abstract
The horizontal transfer of genes is fundamental for the eco-evolutionary dynamics of microbial communities, such as oceanic plankton, soil, and the human microbiome. In the case of an acquired beneficial gene, classic population genetics would predict a genome-wide selective sweep, whereby the genome spreads clonally within the community and together with the beneficial gene, removing genome diversity. Instead, several sources of metagenomic data show the existence of "gene-specific sweeps", whereby a beneficial gene spreads across a bacterial community, maintaining genome diversity. Several hypotheses have been proposed to explain this process, including the decreasing gene flow between ecologically distant populations, frequency-dependent selection from linked deleterious allelles, and very high rates of horizontal gene transfer. Here, we propose an additional possible scenario grounded in eco-evolutionary principles. Specifically, we show by a mathematical model and simulations that a metacommunity where species can occupy multiple patches, acting together with a realistic (moderate) HGT rate, helps maintain genome diversity. Assuming a scenario of patches dominated by single species, our model predicts that diversity only decreases moderately upon the arrival of a new beneficial gene, and that losses in diversity can be quickly restored. We explore the generic behaviour of diversity as a function of three key parameters, frequency of insertion of new beneficial genes, migration rates and horizontal transfer rates.Our results provides a testable explanation for how diversity can be maintained by gene-specific sweeps even in the absence of high horizontal gene transfer rates.
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Affiliation(s)
- Simone Pompei
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Edoardo Bella
- Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16 Milano, Italy
| | - Joshua S. Weitz
- Department of Biology, University of Maryland, College Park, Maryland, United States of America
- Department of Physics, University of Maryland, College Park, Maryland, United States of America
- Institut de Biologie, École Normale Supérieure, Paris, France
| | - Jacopo Grilli
- Quantitative Life Sciences, The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy
| | - Marco Cosentino Lagomarsino
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
- Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16 Milano, Italy
- I.N.F.N, via Celoria 16 Milano, Italy
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Tovo A, Menzel P, Krogh A, Cosentino Lagomarsino M, Suweis S. Taxonomic classification method for metagenomics based on core protein families with Core-Kaiju. Nucleic Acids Res 2020; 48:e93. [PMID: 32633756 PMCID: PMC7498351 DOI: 10.1093/nar/gkaa568] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 06/12/2020] [Accepted: 06/24/2020] [Indexed: 12/19/2022] Open
Abstract
Characterizing species diversity and composition of bacteria hosted by biota is revolutionizing our understanding of the role of symbiotic interactions in ecosystems. Determining microbiomes diversity implies the assignment of individual reads to taxa by comparison to reference databases. Although computational methods aimed at identifying the microbe(s) taxa are available, it is well known that inferences using different methods can vary widely depending on various biases. In this study, we first apply and compare different bioinformatics methods based on 16S ribosomal RNA gene and shotgun sequencing to three mock communities of bacteria, of which the compositions are known. We show that none of these methods can infer both the true number of taxa and their abundances. We thus propose a novel approach, named Core-Kaiju, which combines the power of shotgun metagenomics data with a more focused marker gene classification method similar to 16S, but based on emergent statistics of core protein domain families. We thus test the proposed method on various mock communities and we show that Core-Kaiju reliably predicts both number of taxa and abundances. Finally, we apply our method on human gut samples, showing how Core-Kaiju may give more accurate ecological characterization and a fresh view on real microbiomes.
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Affiliation(s)
- Anna Tovo
- Physics and Astronomy Department, LIPh Lab, University of Padova, Via Marzolo 8, 35131 Padova, Italy.,Mathematics Department, University of Padova, via Trieste 63, 35121 Padova, Italy
| | - Peter Menzel
- Labor Berlin Charité Vivantes GmbH, Sylter Str. 2, 13353 Berlin, Germany
| | - Anders Krogh
- Department of Computer Science, University of Copenhagen, Universitetsparken 1, DK-2100 Copenhagen, Denmark
| | - Marco Cosentino Lagomarsino
- IFOM, FIRC Institute of Molecular Oncology, Via Adamello 16, 20143 Milan, Italy.,Physics Department, University of Milan, and I.N.F.N., Via Celoria 16, 20133 Milan, Italy
| | - Samir Suweis
- Physics and Astronomy Department, LIPh Lab, University of Padova, Via Marzolo 8, 35131 Padova, Italy.,Padova Neuroscience Center, University of Padova, Via Orus 2/B, 35131 Padova, Italy
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4
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Shapiro JA. Living Organisms Author Their Read-Write Genomes in Evolution. BIOLOGY 2017; 6:E42. [PMID: 29211049 PMCID: PMC5745447 DOI: 10.3390/biology6040042] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/17/2017] [Accepted: 11/28/2017] [Indexed: 12/18/2022]
Abstract
Evolutionary variations generating phenotypic adaptations and novel taxa resulted from complex cellular activities altering genome content and expression: (i) Symbiogenetic cell mergers producing the mitochondrion-bearing ancestor of eukaryotes and chloroplast-bearing ancestors of photosynthetic eukaryotes; (ii) interspecific hybridizations and genome doublings generating new species and adaptive radiations of higher plants and animals; and, (iii) interspecific horizontal DNA transfer encoding virtually all of the cellular functions between organisms and their viruses in all domains of life. Consequently, assuming that evolutionary processes occur in isolated genomes of individual species has become an unrealistic abstraction. Adaptive variations also involved natural genetic engineering of mobile DNA elements to rewire regulatory networks. In the most highly evolved organisms, biological complexity scales with "non-coding" DNA content more closely than with protein-coding capacity. Coincidentally, we have learned how so-called "non-coding" RNAs that are rich in repetitive mobile DNA sequences are key regulators of complex phenotypes. Both biotic and abiotic ecological challenges serve as triggers for episodes of elevated genome change. The intersections of cell activities, biosphere interactions, horizontal DNA transfers, and non-random Read-Write genome modifications by natural genetic engineering provide a rich molecular and biological foundation for understanding how ecological disruptions can stimulate productive, often abrupt, evolutionary transformations.
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Affiliation(s)
- James A Shapiro
- Department of Biochemistry and Molecular Biology, University of Chicago GCIS W123B, 979 E. 57th Street, Chicago, IL 60637, USA.
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De Lazzari E, Grilli J, Maslov S, Cosentino Lagomarsino M. Family-specific scaling laws in bacterial genomes. Nucleic Acids Res 2017; 45:7615-7622. [PMID: 28605556 PMCID: PMC5737699 DOI: 10.1093/nar/gkx510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/30/2017] [Indexed: 01/21/2023] Open
Abstract
Among several quantitative invariants found in evolutionary genomics, one of the most striking is the scaling of the overall abundance of proteins, or protein domains, sharing a specific functional annotation across genomes of given size. The size of these functional categories change, on average, as power-laws in the total number of protein-coding genes. Here, we show that such regularities are not restricted to the overall behavior of high-level functional categories, but also exist systematically at the level of single evolutionary families of protein domains. Specifically, the number of proteins within each family follows family-specific scaling laws with genome size. Functionally similar sets of families tend to follow similar scaling laws, but this is not always the case. To understand this systematically, we provide a comprehensive classification of families based on their scaling properties. Additionally, we develop a quantitative score for the heterogeneity of the scaling of families belonging to a given category or predefined group. Under the common reasonable assumption that selection is driven solely or mainly by biological function, these findings point to fine-tuned and interdependent functional roles of specific protein domains, beyond our current functional annotations. This analysis provides a deeper view on the links between evolutionary expansion of protein families and the functional constraints shaping the gene repertoire of bacterial genomes.
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Affiliation(s)
- Eleonora De Lazzari
- Sorbonne Universités, UPMC Université Paris 06, UMR 7238 Computational and Quantitative Biology, Genomic Physics Group, 4 Place Jussieu, Paris 75005, France
| | - Jacopo Grilli
- Department of Ecology and Evolution, University of Chicago, 1101 E 57th st 60637 Chicago, IL, USA
| | - Sergei Maslov
- Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- To whom correspondence should be addressed. Tel: +33 144277341; . Correspondence may also be addressed to Sergei Maslov. Tel: +1 217 265 5705;
| | - Marco Cosentino Lagomarsino
- Sorbonne Universités, UPMC Université Paris 06, UMR 7238 Computational and Quantitative Biology, Genomic Physics Group, 4 Place Jussieu, Paris 75005, France
- CNRS, UMR 7238, Paris, France
- FIRC Institute of Molecular Oncology (IFOM), 20139 Milan, Italy
- To whom correspondence should be addressed. Tel: +33 144277341; . Correspondence may also be addressed to Sergei Maslov. Tel: +1 217 265 5705;
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Zelaya-Molina LX, Hernández-Soto LM, Guerra-Camacho JE, Monterrubio-López R, Patiño-Siciliano A, Villa-Tanaca L, Hernández-Rodríguez C. Ammonia-Oligotrophic and Diazotrophic Heavy Metal-Resistant Serratia liquefaciens Strains from Pioneer Plants and Mine Tailings. MICROBIAL ECOLOGY 2016; 72:324-346. [PMID: 27138047 DOI: 10.1007/s00248-016-0771-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 04/12/2016] [Indexed: 06/05/2023]
Abstract
Mine tailings are man-made environments characterized by low levels of organic carbon and assimilable nitrogen, as well as moderate concentrations of heavy metals. For the introduction of nitrogen into these environments, a key role is played by ammonia-oligotrophic/diazotrophic heavy metal-resistant guilds. In mine tailings from Zacatecas, Mexico, Serratia liquefaciens was the dominant heterotrophic culturable species isolated in N-free media from bulk mine tailings as well as the rhizosphere, roots, and aerial parts of pioneer plants. S. liquefaciens strains proved to be a meta-population with high intraspecific genetic diversity and a potential to respond to these extreme conditions. The phenotypic and genotypic features of these strains reveal the potential adaptation of S. liquefaciens to oligotrophic and nitrogen-limited mine tailings with high concentrations of heavy metals. These features include ammonia-oligotrophic growth, nitrogen fixation, siderophore and indoleacetic acid production, phosphate solubilization, biofilm formation, moderate tolerance to heavy metals under conditions of diverse nitrogen availability, and the presence of zntA, amtB, and nifH genes. The acetylene reduction assay suggests low nitrogen-fixing activity. The nifH gene was harbored in a plasmid of ∼60 kb and probably was acquired by a horizontal gene transfer event from Klebsiella variicola.
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Affiliation(s)
- Lily X Zelaya-Molina
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico
| | - Luis M Hernández-Soto
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico
| | - Jairo E Guerra-Camacho
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico
| | - Ricardo Monterrubio-López
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico
| | - Alfredo Patiño-Siciliano
- Departamento de Botánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico
| | - Lourdes Villa-Tanaca
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico
| | - César Hernández-Rodríguez
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Mexico, D.F., Mexico.
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