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Peña TA, Villarreal P, Agier N, De Chiara M, Barría T, Urbina K, Villarroel CA, Santos ARO, Rosa CA, Nespolo RF, Liti G, Fischer G, Cubillos FA. An integrative taxonomy approach reveals Saccharomyces chiloensis sp. nov. as a newly discovered species from Coastal Patagonia. PLoS Genet 2024; 20:e1011396. [PMID: 39241096 DOI: 10.1371/journal.pgen.1011396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Accepted: 08/14/2024] [Indexed: 09/08/2024] Open
Abstract
Species delineation in microorganisms is challenging due to the limited markers available for accurate species assignment. Here, we applied an integrative taxonomy approach, combining extensive sampling, whole-genome sequence-based classification, phenotypic profiling, and assessment of interspecific reproductive isolation. Our work reveals the presence of a distinct Saccharomyces lineage in Nothofagus forests of coastal Patagonia. This lineage, designated Saccharomyces chiloensis sp. nov., exhibits 7% genetic divergence from its sister species S. uvarum, as revealed by whole-genome sequencing and population analyses. The South America-C (SA-C) coastal Patagonia population forms a unique clade closely related to a previously described divergent S. uvarum population from Oceania (AUS, found in Australia and New Zealand). Our species reclassification is supported by a low Ortho Average Nucleotide Identity (OANI) of 93% in SA-C and AUS relative to S. uvarum, which falls below the suggested species delineation threshold of 95%, indicating an independent evolutionary lineage. Hybrid spore viability assessment provided compelling evidence that SA-C and AUS are reproductively isolated from S. uvarum. In addition, we found unique structural variants between S. chiloensis sp. nov. lineages, including large-scale chromosomal translocations and inversions, together with a distinct phenotypic profile, emphasizing their intraspecies genetic distinctiveness. We suggest that S. chiloensis sp. nov diverged from S. uvarum in allopatry due to glaciation, followed by post-glacial dispersal, resulting in distinct lineages on opposite sides of the Pacific Ocean. The discovery of S. chiloensis sp. nov. illustrates the uniqueness of Patagonia's coastal biodiversity and underscores the importance of adopting an integrative taxonomic approach in species delineation to unveil cryptic microbial species. The holotype of S. chiloensis sp. nov. is CBS 18620T.
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Affiliation(s)
- Tomas A Peña
- Facultad de Química y Biología, Departamento de Biología, Universidad de Santiago de Chile, Santiago, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Pablo Villarreal
- Facultad de Química y Biología, Departamento de Biología, Universidad de Santiago de Chile, Santiago, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Nicolas Agier
- Laboratory of Computational and Quantitative Biology, CNRS, Institut de Biologie Paris-Seine, Sorbonne Université, Paris, France
| | | | - Tomas Barría
- Facultad de Química y Biología, Departamento de Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Kamila Urbina
- Facultad de Química y Biología, Departamento de Biología, Universidad de Santiago de Chile, Santiago, Chile
- Millenium Nucleus of Patagonian Limit of Life (LiLi), Santiago, Chile
| | - Carlos A Villarroel
- Centro de Biotecnología de los Recursos Naturales (CENBio), Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Talca, Chile
| | - Ana R O Santos
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carlos A Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Roberto F Nespolo
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
- Millenium Nucleus of Patagonian Limit of Life (LiLi), Santiago, Chile
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile
- Center of Applied Ecology and Sustainability (CAPES), Facultad de Ciencias Biológicas, Universidad Católica de Chile, Santiago, Chile
| | - Gianni Liti
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Gilles Fischer
- Laboratory of Computational and Quantitative Biology, CNRS, Institut de Biologie Paris-Seine, Sorbonne Université, Paris, France
| | - Francisco A Cubillos
- Facultad de Química y Biología, Departamento de Biología, Universidad de Santiago de Chile, Santiago, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
- Millenium Nucleus of Patagonian Limit of Life (LiLi), Santiago, Chile
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Tan KT, Slevin MK, Leibowitz ML, Garrity-Janger M, Shan J, Li H, Meyerson M. Neotelomeres and telomere-spanning chromosomal arm fusions in cancer genomes revealed by long-read sequencing. CELL GENOMICS 2024; 4:100588. [PMID: 38917803 PMCID: PMC11293586 DOI: 10.1016/j.xgen.2024.100588] [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: 12/14/2022] [Revised: 11/09/2023] [Accepted: 05/30/2024] [Indexed: 06/27/2024]
Abstract
Alterations in the structure and location of telomeres are pivotal in cancer genome evolution. Here, we applied both long-read and short-read genome sequencing to assess telomere repeat-containing structures in cancers and cancer cell lines. Using long-read genome sequences that span telomeric repeats, we defined four types of telomere repeat variations in cancer cells: neotelomeres where telomere addition heals chromosome breaks, chromosomal arm fusions spanning telomere repeats, fusions of neotelomeres, and peri-centromeric fusions with adjoined telomere and centromere repeats. These results provide a framework for the systematic study of telomeric repeats in cancer genomes, which could serve as a model for understanding the somatic evolution of other repetitive genomic elements.
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Affiliation(s)
- Kar-Tong Tan
- Dana-Farber Cancer Institute, Boston, MA 02215, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02215, USA
| | | | - Mitchell L Leibowitz
- Dana-Farber Cancer Institute, Boston, MA 02215, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02215, USA
| | - Max Garrity-Janger
- Dana-Farber Cancer Institute, Boston, MA 02215, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02215, USA
| | - Jidong Shan
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Heng Li
- Dana-Farber Cancer Institute, Boston, MA 02215, USA; Harvard Medical School, Boston, MA 02215, USA.
| | - Matthew Meyerson
- Dana-Farber Cancer Institute, Boston, MA 02215, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02215, USA.
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3
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Tan KT, Slevin MK, Leibowitz ML, Garrity-Janger M, Li H, Meyerson M. Neotelomeres and Telomere-Spanning Chromosomal Arm Fusions in Cancer Genomes Revealed by Long-Read Sequencing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.30.569101. [PMID: 38077026 PMCID: PMC10705422 DOI: 10.1101/2023.11.30.569101] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Alterations in the structure and location of telomeres are key events in cancer genome evolution. However, previous genomic approaches, unable to span long telomeric repeat arrays, could not characterize the nature of these alterations. Here, we applied both long-read and short-read genome sequencing to assess telomere repeat-containing structures in cancers and cancer cell lines. Using long-read genome sequences that span telomeric repeat arrays, we defined four types of telomere repeat variations in cancer cells: neotelomeres where telomere addition heals chromosome breaks, chromosomal arm fusions spanning telomere repeats, fusions of neotelomeres, and peri-centromeric fusions with adjoined telomere and centromere repeats. Analysis of lung adenocarcinoma genome sequences identified somatic neotelomere and telomere-spanning fusion alterations. These results provide a framework for systematic study of telomeric repeat arrays in cancer genomes, that could serve as a model for understanding the somatic evolution of other repetitive genomic elements.
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Affiliation(s)
- Kar-Tong Tan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Cancer Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Michael K. Slevin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Center for Cancer Genomics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Mitchell L. Leibowitz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Cancer Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Max Garrity-Janger
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Cancer Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Heng Li
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02215, USA
| | - Matthew Meyerson
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Cancer Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
- Center for Cancer Genomics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Lead contact
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4
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Peris D, Ubbelohde EJ, Kuang MC, Kominek J, Langdon QK, Adams M, Koshalek JA, Hulfachor AB, Opulente DA, Hall DJ, Hyma K, Fay JC, Leducq JB, Charron G, Landry CR, Libkind D, Gonçalves C, Gonçalves P, Sampaio JP, Wang QM, Bai FY, Wrobel RL, Hittinger CT. Macroevolutionary diversity of traits and genomes in the model yeast genus Saccharomyces. Nat Commun 2023; 14:690. [PMID: 36755033 PMCID: PMC9908912 DOI: 10.1038/s41467-023-36139-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 01/17/2023] [Indexed: 02/10/2023] Open
Abstract
Species is the fundamental unit to quantify biodiversity. In recent years, the model yeast Saccharomyces cerevisiae has seen an increased number of studies related to its geographical distribution, population structure, and phenotypic diversity. However, seven additional species from the same genus have been less thoroughly studied, which has limited our understanding of the macroevolutionary events leading to the diversification of this genus over the last 20 million years. Here, we show the geographies, hosts, substrates, and phylogenetic relationships for approximately 1,800 Saccharomyces strains, covering the complete genus with unprecedented breadth and depth. We generated and analyzed complete genome sequences of 163 strains and phenotyped 128 phylogenetically diverse strains. This dataset provides insights about genetic and phenotypic diversity within and between species and populations, quantifies reticulation and incomplete lineage sorting, and demonstrates how gene flow and selection have affected traits, such as galactose metabolism. These findings elevate the genus Saccharomyces as a model to understand biodiversity and evolution in microbial eukaryotes.
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Grants
- R01 GM080669 NIGMS NIH HHS
- T32 GM007133 NIGMS NIH HHS
- We thank the University of Wisconsin Biotechnology Center DNA Sequencing Facility for providing Illumina and Sanger sequencing facilities and services; Maria Sardi, Audrey Gasch, and Ursula Bond for providing strains; Sean McIlwain for providing guidance for genome ultra-scaffolding; Yury V. Bukhman for discussing applications of the Growth Curve Analysis Tool (GCAT); Mick McGee for HPLC analysis; Raúl Ortíz-Merino for assistance during YGAP annotations; Jessica Leigh for assistance with PopART; Cecile Ané for suggestions about BUCKy utilization and phylogenetic network analyses; Samina Naseeb and Daniela Delneri for sharing preliminary multi-locus Saccharomyces jurei data; and Branden Timm, Brian Kyle, and Dan Metzger for computational assistance. Some computations were performed on Tirant III of the Spanish Supercomputing Network (‘‘Servei d’Informàtica de la Universitat de València”) under the project BCV-2021-1-0001 granted to DP, while others were performed at the Wisconsin Energy Institute and the Center for High-Throughput Computing of the University of Wisconsin-Madison. During a portion of this project, DP was a researcher funded by the European Union’s Horizon 2020 research and innovation programme Marie Sklodowska-Curie, grant agreement No. 747775, the Research Council of Norway (RCN) grant Nos. RCN 324253 and 274337, and the Generalitat Valenciana plan GenT grant No. CIDEGENT/2021/039. DP is a recipient of an Illumina Grant for Illumina Sequencing Saccharomyces strains in this study. QKL was supported by the National Science Foundation under Grant No. DGE-1256259 (Graduate Research Fellowship) and the Predoctoral Training Program in Genetics, funded by the National Institutes of Health (5T32GM007133). This material is based upon work supported in part by the Great Lakes Bioenergy Research Center, Office of Science, Office of Biological and Environmental Research under Award Numbers DE-SC0018409 and DE-FC02-07ER64494; the National Science Foundation under Grant Nos. DEB-1253634, DEB-1442148, and DEB-2110403; and the USDA National Institute of Food and Agriculture Hatch Project Number 1020204. C.T.H. is an H. I. Romnes Faculty Fellow, supported by the Office of the Vice Chancellor for Research and Graduate Education with funding from Wisconsin Alumni Research Foundation. QMW was supported by the National Natural Science Foundation of China (NSFC) under Grant Nos. 31770018 and 31961133020. CRL holds the Canada Research Chair in Cellular Systems and Synthetic Biology, and his research on wild yeast is supported by a NSERC Discovery Grant.
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Affiliation(s)
- David Peris
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA.
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA.
- Section for Genetics and Evolutionary Biology, Department of Biosciences, University of Oslo, Oslo, Norway.
- Department of Food Biotechnology, Institute of Agrochemistry and Food Technology (IATA), CSIC, Valencia, Spain.
| | - Emily J Ubbelohde
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Meihua Christina Kuang
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
| | - Jacek Kominek
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Quinn K Langdon
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
| | - Marie Adams
- Biotechnology Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Justin A Koshalek
- Biotechnology Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Amanda Beth Hulfachor
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Dana A Opulente
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Katie Hyma
- Department of Biology, University of Rochester, Rochester, NY, USA
| | - Justin C Fay
- Department of Biology, University of Rochester, Rochester, NY, USA
| | - Jean-Baptiste Leducq
- Departement des Sciences Biologiques, Université de Montréal, Montreal, QC, Canada
- Département de Biologie, PROTEO, Pavillon Charles‑Eugène‑Marchand, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, QC, Canada
| | - Guillaume Charron
- Canada Natural Resources, Laurentian Forestry Centre, Quebec City, QC, Canada
| | - Christian R Landry
- Département de Biologie, PROTEO, Pavillon Charles‑Eugène‑Marchand, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, QC, Canada
| | - Diego Libkind
- Centro de Referencia en Levaduras y Tecnología Cervecera (CRELTEC), Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), Consejo Nacional de Investigaciones, Científicas y Técnicas (CONICET)-Universidad Nacional del Comahue, Bariloche, Argentina
| | - Carla Gonçalves
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO-i4HB, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
- Vanderbilt University, Department of Biological Sciences, Nashville, TN, USA
- Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN, USA
| | - Paula Gonçalves
- UCIBIO-i4HB, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - José Paulo Sampaio
- UCIBIO-i4HB, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Qi-Ming Wang
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, China
| | - Feng-Yan Bai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Russel L Wrobel
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Chris Todd Hittinger
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Wisconsin Energy Institute, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA.
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA.
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5
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Shuffling the yeast genome using CRISPR/Cas9-generated DSBs that target the transposable Ty1 elements. PLoS Genet 2023; 19:e1010590. [PMID: 36701275 PMCID: PMC9879454 DOI: 10.1371/journal.pgen.1010590] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/21/2022] [Indexed: 01/27/2023] Open
Abstract
Although homologous recombination between transposable elements can drive genomic evolution in yeast by facilitating chromosomal rearrangements, the details of the underlying mechanisms are not fully clarified. In the genome of the yeast Saccharomyces cerevisiae, the most common class of transposon is the retrotransposon Ty1. Here, we explored how Cas9-induced double-strand breaks (DSBs) directed to Ty1 elements produce genomic alterations in this yeast species. Following Cas9 induction, we observed a significant elevation of chromosome rearrangements such as deletions, duplications and translocations. In addition, we found elevated rates of mitotic recombination, resulting in loss of heterozygosity. Using Southern analysis coupled with short- and long-read DNA sequencing, we revealed important features of recombination induced in retrotransposons. Almost all of the chromosomal rearrangements reflect the repair of DSBs at Ty1 elements by non-allelic homologous recombination; clustered Ty elements were hotspots for chromosome rearrangements. In contrast, a large proportion (about three-fourths) of the allelic mitotic recombination events have breakpoints in unique sequences. Our analysis suggests that some of the latter events reflect extensive processing of the broken ends produced in the Ty element that extend into unique sequences resulting in break-induced replication. Finally, we found that haploid and diploid strain have different preferences for the pathways used to repair double-stranded DNA breaks. Our findings demonstrate the importance of DNA lesions in retrotransposons in driving genome evolution.
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6
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Chou JY, Hsu PC, Leu JY. Enforcement of Postzygotic Species Boundaries in the Fungal Kingdom. Microbiol Mol Biol Rev 2022; 86:e0009822. [PMID: 36098649 PMCID: PMC9769731 DOI: 10.1128/mmbr.00098-22] [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] [Indexed: 01/01/2023] Open
Abstract
Understanding the molecular basis of speciation is a primary goal in evolutionary biology. The formation of the postzygotic reproductive isolation that causes hybrid dysfunction, thereby reducing gene flow between diverging populations, is crucial for speciation. Using various advanced approaches, including chromosome replacement, hybrid introgression and transcriptomics, population genomics, and experimental evolution, scientists have revealed multiple mechanisms involved in postzygotic barriers in the fungal kingdom. These results illuminate both unique and general features of fungal speciation. Our review summarizes experiments on fungi exploring how Dobzhansky-Muller incompatibility, killer meiotic drive, chromosome rearrangements, and antirecombination contribute to postzygotic reproductive isolation. We also discuss possible evolutionary forces underlying different reproductive isolation mechanisms and the potential roles of the evolutionary arms race under the Red Queen hypothesis and epigenetic divergence in speciation.
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Affiliation(s)
- Jui-Yu Chou
- Department of Biology, National Changhua University of Education, Changhua, Taiwan
| | - Po-Chen Hsu
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Jun-Yi Leu
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
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7
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Bozdag GO, Ono J. Evolution and molecular bases of reproductive isolation. Curr Opin Genet Dev 2022; 76:101952. [PMID: 35849861 PMCID: PMC10210581 DOI: 10.1016/j.gde.2022.101952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/31/2022] [Accepted: 06/14/2022] [Indexed: 11/03/2022]
Abstract
The most challenging problem in speciation research is disentangling the relative strength and order in which different reproductive barriers evolve. Here, we review recent developments in the study of reproductive isolation in yeasts. With over a thousand genome-sequenced isolates readily available for testing the viability, sterility, and fitness of both intraspecies and interspecies hybrid crosses, Saccharomyces yeasts are an ideal model to study such fundamental questions. Our survey demonstrates that, while chromosomal-level mutations are widespread at the intraspecific level, anti-recombination-driven chromosome missegregation is the primary reproductive barrier between species. Finally, despite their strength, all of these postzygotic barriers can be resolved through the asexual life history of hybrids.
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Affiliation(s)
- G Ozan Bozdag
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA. https://twitter.com/ozan_g_b
| | - Jasmine Ono
- Centre for Life's Origins and Evolution, Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK.
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8
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He PY, Shao XQ, Duan SF, Han DY, Li K, Shi JY, Zhang RP, Han PJ, Wang QM, Bai FY. Highly diverged lineages of Saccharomyces paradoxus in temperate to subtropical climate zones in China. Yeast 2021; 39:69-82. [PMID: 34961959 DOI: 10.1002/yea.3688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/19/2021] [Accepted: 12/21/2021] [Indexed: 11/06/2022] Open
Abstract
The wild yeast Saccharomyces paradoxus has become a new model in ecology and evolutionary biology. Different lineages of S. paradoxus have been recognized across the world, but the distribution and genetic diversity of the species remain unknown in China, where the origin of its sibling species S. cerevisiae lies. In this study, we investigated the ecological and geographic distribution of S. paradoxus through an extensive field survey in China and performed population genomic analysis on a set of S. paradoxus strains, including 27 strains, representing different geographic and ecological origins within China, and 59 strains representing all the known lineages of the species recognized in the other regions of the world so far. We found two distinct lineages of S. paradoxus in China. The majority of the Chinese strains studied belong to the Far East lineage, and six strains belong to a novel highly diverged lineage. The distribution of these two lineages overlaps ecologically and geographically in temperate to subtropical climate zones in China. With the addition of the new China lineage, the Eurasian population of S. paradoxus exhibits higher genetic diversity than the American population. We observed more possible lineage-specific introgression events from the Eurasian lineages than from the American lineages. Our results expand the knowledge on ecology, genetic diversity, biogeography, and evolution of S. paradoxus.
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Affiliation(s)
- Peng-Yu He
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xu-Qian Shao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,Genetic Engineering Division, China National Intellectual Property Administration (CNIPA), Beijing, China
| | - Shou-Fu Duan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Da-Yong Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Kuan Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jun-Yan Shi
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Ri-Peng Zhang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Pei-Jie Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Qi-Ming Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, Hebei, China
| | - Feng-Yan Bai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
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9
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Mozzachiodi S, Tattini L, Llored A, Irizar A, Škofljanc N, D'Angiolo M, De Chiara M, Barré BP, Yue JX, Lutazi A, Loeillet S, Laureau R, Marsit S, Stenberg S, Albaud B, Persson K, Legras JL, Dequin S, Warringer J, Nicolas A, Liti G. Aborting meiosis allows recombination in sterile diploid yeast hybrids. Nat Commun 2021; 12:6564. [PMID: 34772931 PMCID: PMC8589840 DOI: 10.1038/s41467-021-26883-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 10/20/2021] [Indexed: 12/03/2022] Open
Abstract
Hybrids between diverged lineages contain novel genetic combinations but an impaired meiosis often makes them evolutionary dead ends. Here, we explore to what extent an aborted meiosis followed by a return-to-growth (RTG) promotes recombination across a panel of 20 Saccharomyces cerevisiae and S. paradoxus diploid hybrids with different genomic structures and levels of sterility. Genome analyses of 275 clones reveal that RTG promotes recombination and generates extensive regions of loss-of-heterozygosity in sterile hybrids with either a defective meiosis or a heavily rearranged karyotype, whereas RTG recombination is reduced by high sequence divergence between parental subgenomes. The RTG recombination preferentially arises in regions with low local heterozygosity and near meiotic recombination hotspots. The loss-of-heterozygosity has a profound impact on sexual and asexual fitness, and enables genetic mapping of phenotypic differences in sterile lineages where linkage analysis would fail. We propose that RTG gives sterile yeast hybrids access to a natural route for genome recombination and adaptation.
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Grants
- This work was supported by Agence Nationale de la Recherche (ANR-11-LABX-0028-01, ANR-13-BSV6-0006-01, ANR-15-IDEX-01, ANR-16-CE12-0019 and ANR-18-CE12-0004), Fondation pour la Recherche Médicale (FRM EQU202003010413), CEFIPRA, Cancéropôle PACA (AAP Equipment 2018), Meiogenix and the Swedish Research Council (2014-6547, 2014-4605 and 2018-03638). S.Mo. is funded by the convention CIFRE 2016/0582 between Meiogenix and ANRT. The Institut Curie NGS platform is supported by ANR-10-EQPX-03 (Equipex), ANR-10-INBS-09-08 (France Génomique Consortium), ITMO-CANCER and SiRIC INCA-DGOS (4654 program).
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Affiliation(s)
- Simone Mozzachiodi
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
- Meiogenix, 38, rue Servan, Paris, 75011, France
| | | | - Agnes Llored
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | | | - Neža Škofljanc
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | | | | | | | - Jia-Xing Yue
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Angela Lutazi
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Sophie Loeillet
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
| | - Raphaelle Laureau
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
- Department of Genetics and Development, Hammer Health Sciences Center, Columbia University Medical Center, New York, NY, USA
| | - Souhir Marsit
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
- SPO, Université Montpellier, INRAE, Montpellier SupAgro, Montpellier, France
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, Rimouski, Québec, Canada
| | - Simon Stenberg
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Benoit Albaud
- Institut Curie, ICGEX NGS Platform, Paris, 75005, France
| | - Karl Persson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Jean-Luc Legras
- SPO, Université Montpellier, INRAE, Montpellier SupAgro, Montpellier, France
| | - Sylvie Dequin
- SPO, Université Montpellier, INRAE, Montpellier SupAgro, Montpellier, France
| | - Jonas Warringer
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Alain Nicolas
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
- Meiogenix, 38, rue Servan, Paris, 75011, France
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
| | - Gianni Liti
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France.
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10
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The Formation of Neochromosomes during Experimental Evolution in the Yeast Saccharomyces cerevisiae. Genes (Basel) 2021; 12:genes12111678. [PMID: 34828283 PMCID: PMC8619081 DOI: 10.3390/genes12111678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 11/17/2022] Open
Abstract
Novel, large-scale structural mutations were previously discovered during the cultivation of engineered Saccharomyces cerevisiae strains in which essential tRNA synthetase genes were replaced by their orthologs from the distantly related yeast Yarrowia lipolytica. Among those were internal segmental amplifications forming giant chromosomes as well as complex segmental rearrangements associated with massive amplifications at an unselected short locus. The formation of such novel structures, whose stability is high enough to propagate over multiple generations, involved short repeated sequences dispersed in the genome (as expected), but also novel junctions between unrelated sequences likely triggered by accidental template switching within replication forks. Using the same evolutionary protocol, we now describe yet another type of major structural mutation in the yeast genome, the formation of neochromosomes, with functional centromeres and telomeres, made of extra copies of very long chromosomal segments ligated together in novel arrangements. The novel junctions occurred between short repeated sequences dispersed in the genome. They first resulted in the formation of an instable neochromosome present in a single copy in the diploid cells, followed by its replacement by a shorter, partially palindromic neochromosome present in two copies, whose stability eventually increased the chromosome number of the diploid strains harboring it.
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11
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Naumova ES, Borovkova AN, Shalamitskiy MY, Naumov GI. Natural Polymorphism of Pectinase PGU Genes in the Saccharomyces Yeasts. Microbiology (Reading) 2021. [DOI: 10.1134/s0026261721030085] [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] Open
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12
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Gorkovskiy A, Verstrepen KJ. The Role of Structural Variation in Adaptation and Evolution of Yeast and Other Fungi. Genes (Basel) 2021; 12:699. [PMID: 34066718 PMCID: PMC8150848 DOI: 10.3390/genes12050699] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 01/12/2023] Open
Abstract
Mutations in DNA can be limited to one or a few nucleotides, or encompass larger deletions, insertions, duplications, inversions and translocations that span long stretches of DNA or even full chromosomes. These so-called structural variations (SVs) can alter the gene copy number, modify open reading frames, change regulatory sequences or chromatin structure and thus result in major phenotypic changes. As some of the best-known examples of SV are linked to severe genetic disorders, this type of mutation has traditionally been regarded as negative and of little importance for adaptive evolution. However, the advent of genomic technologies uncovered the ubiquity of SVs even in healthy organisms. Moreover, experimental evolution studies suggest that SV is an important driver of evolution and adaptation to new environments. Here, we provide an overview of the causes and consequences of SV and their role in adaptation, with specific emphasis on fungi since these have proven to be excellent models to study SV.
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Affiliation(s)
- Anton Gorkovskiy
- Laboratory for Genetics and Genomics, Centre of Microbial and Plant Genetics (CMPG), KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium;
- Laboratory for Systems Biology, VIB—KU Leuven Center for Microbiology, Bio-Incubator, Gaston Geenslaan 1, 3001 Leuven, Belgium
| | - Kevin J. Verstrepen
- Laboratory for Genetics and Genomics, Centre of Microbial and Plant Genetics (CMPG), KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium;
- Laboratory for Systems Biology, VIB—KU Leuven Center for Microbiology, Bio-Incubator, Gaston Geenslaan 1, 3001 Leuven, Belgium
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13
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Guimarães AR, Correia I, Sousa I, Oliveira C, Moura G, Bezerra AR, Santos MAS. tRNAs as a Driving Force of Genome Evolution in Yeast. Front Microbiol 2021; 12:634004. [PMID: 33776966 PMCID: PMC7990762 DOI: 10.3389/fmicb.2021.634004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/01/2021] [Indexed: 11/29/2022] Open
Abstract
Transfer RNAs (tRNAs) are widely known for their roles in the decoding of the linear mRNA information into amino acid sequences of proteins. They are also multifunctional platforms in the translation process and have other roles beyond translation, including sensing amino acid abundance, interacting with the general stress response machinery, and modulating cellular adaptation, survival, and death. In this mini-review, we focus on the emerging role of tRNA genes in the organization and modification of the genomic architecture of yeast and the role of tRNA misexpression and decoding infidelity in genome stability, evolution, and adaption. We discuss published work showing how quickly tRNA genes can mutate to meet novel translational demands, how tRNAs speed up genome evolution, and how tRNA genes can be sites of genomic instability. We highlight recent works showing that loss of tRNA decoding fidelity and small alterations in tRNA expression have unexpected and profound impacts on genome stability. By dissecting these recent evidence, we hope to lay the groundwork that prompts future investigations on the mechanistic interplay between tRNAs and genome modification that likely triggers genome evolution.
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Affiliation(s)
- Ana Rita Guimarães
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Inês Correia
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Inês Sousa
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Carla Oliveira
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Gabriela Moura
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Ana Rita Bezerra
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Manuel A S Santos
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
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14
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Gell RM, Horn BW, Carbone I. Genetic map and heritability of Aspergillus flavus. Fungal Genet Biol 2020; 144:103478. [PMID: 33059038 DOI: 10.1016/j.fgb.2020.103478] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 07/31/2020] [Accepted: 10/07/2020] [Indexed: 12/30/2022]
Abstract
The carcinogenic aflatoxins are a human health concern as well as an economic burden to corn, peanut and other crops grown within the United States and globally. Aflatoxins are produced by fungi species in Aspergillus section Flavi, primarily Aspergillus flavus. Though previously thought of as only asexual, A. flavus has recently been found to undergo sexual reproduction both in laboratory crosses and in the field. To elucidate the consequences of genetic exchange through a single generation of the sexual cycle within A. flavus, we constructed genetic maps based on three mapping populations, each composed of the parental strains and approximately 70 F1 progeny. Genome-wide data using double digest Restriction Associated DNA sequencing identified 496, 811, and 576 significant polymorphisms differentiating parents across eight linkage groups; these polymorphisms served as markers. Average spacing between marker loci was 3.1, 2.1, and 3.5 map units and overall map length was 1504.4, 1669.2, and 2001.3 cM. Recombination was non-randomly distributed across chromosomes with an average rate of recombination of about 46.81 cM per Mbp. We showed inheritance of mitochondrial loci from the sclerotial (female) parent in crosses, whereas nuclear loci showed a 1:1 segregation ratio from both parents. The linkage map will be useful in QTL analyses to identify traits that increase sexual fertility in A. flavus and modulate aflatoxin production, both of which have significant implications for sustainable reduction of aflatoxin contamination using biological control agents.
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Affiliation(s)
- Richard M Gell
- Center for Integrated Fungal Research, Program of Genetics, Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Bruce W Horn
- National Peanut Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Dawson, GA, USA
| | - Ignazio Carbone
- Center for Integrated Fungal Research, Program of Genetics, Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA.
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15
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Abstract
The genus Saccharomyces is an evolutionary paradox. On the one hand, it is composed of at least eight clearly phylogenetically delineated species; these species are reproductively isolated from each other, and hybrids usually cannot complete their sexual life cycles. On the other hand, Saccharomyces species have a long evolutionary history of hybridization, which has phenotypic consequences for adaptation and domestication. A variety of cellular, ecological, and evolutionary mechanisms are responsible for this partial reproductive isolation among Saccharomyces species. These mechanisms have caused the evolution of diverse Saccharomyces species and hybrids, which occupy a variety of wild and domesticated habitats. In this article, we introduce readers to the mechanisms isolating Saccharomyces species, the circumstances in which reproductive isolation mechanisms are effective and ineffective, and the evolutionary consequences of partial reproductive isolation. We discuss both the evolutionary history of the genus Saccharomyces and the human history of taxonomists and biologists struggling with species concepts in this fascinating genus.
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Affiliation(s)
- Jasmine Ono
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6AA, UK; ,
| | - Duncan Greig
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6AA, UK; ,
| | - Primrose J Boynton
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6AA, UK; ,
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16
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Borovkova AN, Michailova YV, Naumova ES. Molecular Genetic Features of Biological Species of the Genus Saccharomyces. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261720040037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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17
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Murakami H, Lam I, Huang PC, Song J, van Overbeek M, Keeney S. Multilayered mechanisms ensure that short chromosomes recombine in meiosis. Nature 2020; 582:124-128. [PMID: 32494071 PMCID: PMC7298877 DOI: 10.1038/s41586-020-2248-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 03/12/2020] [Indexed: 12/17/2022]
Abstract
In most species, homologous chromosomes must recombine in order to segregate accurately during meiosis1. Because small chromosomes would be at risk of missegregation if recombination were randomly distributed, the double-strand breaks (DSBs) that initiate recombination are not located arbitrarily2. How the nonrandomness of DSB distributions is controlled is not understood, although several pathways are known to regulate the timing, location and number of DSBs. Meiotic DSBs are generated by Spo11 and accessory DSB proteins, including Rec114 and Mer2, which assemble on chromosomes3-7 and are nearly universal in eukaryotes8-11. Here we demonstrate how Saccharomyces cerevisiae integrates multiple temporally distinct pathways to regulate the binding of Rec114 and Mer2 to chromosomes, thereby controlling the duration of a DSB-competent state. The engagement of homologous chromosomes with each other regulates the dissociation of Rec114 and Mer2 later in prophase I, whereas the timing of replication and the proximity to centromeres or telomeres influence the accumulation of Rec114 and Mer2 early in prophase I. Another early mechanism enhances the binding of Rec114 and Mer2 specifically on the shortest chromosomes, and is subject to selection pressure to maintain the hyperrecombinogenic properties of these chromosomes. Thus, the karyotype of an organism and its risk of meiotic missegregation influence the shape and evolution of its recombination landscape. Our results provide a cohesive view of a multifaceted and evolutionarily constrained system that allocates DSBs to all pairs of homologous chromosomes.
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Affiliation(s)
- Hajime Murakami
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Isabel Lam
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Louis V. Gerstner, Jr., Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Ann Romney Center for Neurologic Disease, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Pei-Ching Huang
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Graduate School of Medical Sciences, Cornell University, New York, NY, USA
| | - Jacquelyn Song
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Megan van Overbeek
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Caribou Biosciences, Inc., Berkeley, CA, USA
| | - Scott Keeney
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Louis V. Gerstner, Jr., Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Weill Graduate School of Medical Sciences, Cornell University, New York, NY, USA.
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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18
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Centromere scission drives chromosome shuffling and reproductive isolation. Proc Natl Acad Sci U S A 2020; 117:7917-7928. [PMID: 32193338 DOI: 10.1073/pnas.1918659117] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A fundamental characteristic of eukaryotic organisms is the generation of genetic variation via sexual reproduction. Conversely, significant large-scale genome structure variations could hamper sexual reproduction, causing reproductive isolation and promoting speciation. The underlying processes behind large-scale genome rearrangements are not well understood and include chromosome translocations involving centromeres. Recent genomic studies in the Cryptococcus species complex revealed that chromosome translocations generated via centromere recombination have reshaped the genomes of different species. In this study, multiple DNA double-strand breaks (DSBs) were generated via the CRISPR/Cas9 system at centromere-specific retrotransposons in the human fungal pathogen Cryptococcus neoformans The resulting DSBs were repaired in a complex manner, leading to the formation of multiple interchromosomal rearrangements and new telomeres, similar to chromothripsis-like events. The newly generated strains harboring chromosome translocations exhibited normal vegetative growth but failed to undergo successful sexual reproduction with the parental wild-type strain. One of these strains failed to produce any spores, while another produced ∼3% viable progeny. The germinated progeny exhibited aneuploidy for multiple chromosomes and showed improved fertility with both parents. All chromosome translocation events were accompanied without any detectable change in gene sequences and thus suggest that chromosomal translocations alone may play an underappreciated role in the onset of reproductive isolation and speciation.
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19
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Henninger E, Teixeira MT. Telomere-driven mutational processes in yeast. Curr Opin Genet Dev 2020; 60:99-106. [DOI: 10.1016/j.gde.2020.02.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 12/18/2022]
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20
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Saubin M, Devillers H, Proust L, Brier C, Grondin C, Pradal M, Legras JL, Neuvéglise C. Investigation of Genetic Relationships Between Hanseniaspora Species Found in Grape Musts Revealed Interspecific Hybrids With Dynamic Genome Structures. Front Microbiol 2020; 10:2960. [PMID: 32010076 PMCID: PMC6974558 DOI: 10.3389/fmicb.2019.02960] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/09/2019] [Indexed: 01/11/2023] Open
Abstract
Hanseniaspora, a predominant yeast genus of grape musts, includes sister species recently reported as fast evolving. The aim of this study was to investigate the genetic relationships between the four most closely related species, at the population level. A multi-locus sequence typing strategy based on five markers was applied on 107 strains, confirming the clear delineation of species H. uvarum, H. opuntiae, H. guilliermondii, and H. pseudoguilliermondii. Huge variations were observed in the level of intraspecific nucleotide diversity, and differences in heterozygosity between species indicate different life styles. No clear population structure was detected based on geographical or substrate origins. Instead, H. guilliermondii strains clustered into two distinct groups, which may reflect a recent step toward speciation. Interspecific hybrids were detected between H. opuntiae and H. pseudoguilliermondii. Their characterization using flow cytometry, karyotypes and genome sequencing showed different genome structures in different ploidy contexts: allodiploids, allotriploids, and allotetraploids. Subculturing of an allotriploid strain revealed chromosome loss equivalent to one chromosome set, followed by an auto-diploidization event, whereas another auto-diploidized tetraploid showed a segmental duplication. Altogether, these results suggest that Hanseniaspora genomes are not only fast evolving but also highly dynamic.
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Affiliation(s)
- Méline Saubin
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Hugo Devillers
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Lucas Proust
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Cathy Brier
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Cécile Grondin
- Micalis Institute, INRA, AgroParisTech, CIRM-Levures, Université Paris-Saclay, Jouy-en-Josas, France
| | - Martine Pradal
- SPO, Univ Montpellier, INRA, Montpellier SupAgro, Montpellier, France
| | - Jean-Luc Legras
- SPO, Univ Montpellier, INRA, Montpellier SupAgro, Montpellier, France
| | - Cécile Neuvéglise
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
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21
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Designing New Yeasts for Craft Brewing: When Natural Biodiversity Meets Biotechnology. BEVERAGES 2020. [DOI: 10.3390/beverages6010003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Beer is a fermented beverage with a history as old as human civilization. Ales and lagers are by far the most common beers; however, diversification is becoming increasingly important in the brewing market and the brewers are continuously interested in improving and extending the range of products, especially in the craft brewery sector. Fermentation is one of the widest spaces for innovation in the brewing process. Besides Saccharomyces cerevisiae ale and Saccharomyces pastorianus lager strains conventionally used in macro-breweries, there is an increasing demand for novel yeast starter cultures tailored for producing beer styles with diversified aroma profiles. Recently, four genetic engineering-free approaches expanded the genetic background and the phenotypic biodiversity of brewing yeasts and allowed novel costumed-designed starter cultures to be developed: (1) the research for new performant S. cerevisiae yeasts from fermented foods alternative to beer; (2) the creation of synthetic hybrids between S. cerevisiae and Saccharomyces non-cerevisiae in order to mimic lager yeasts; (3) the exploitation of evolutionary engineering approaches; (4) the usage of non-Saccharomyces yeasts. Here, we summarized the pro and contra of these approaches and provided an overview on the most recent advances on how brewing yeast genome evolved and domestication took place. The resulting correlation maps between genotypes and relevant brewing phenotypes can assist and further improve the search for novel craft beer starter yeasts, enhancing the portfolio of diversified products offered to the final customer.
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22
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Naumova ES, Shalamitskiy MY, Naumov GI. Molecular Polymorphism of Pectinase Genes PGU of Saccharomyces bayanus var. uvarum Yeast. APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819090059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Sun S, Coelho MA, David-Palma M, Priest SJ, Heitman J. The Evolution of Sexual Reproduction and the Mating-Type Locus: Links to Pathogenesis of Cryptococcus Human Pathogenic Fungi. Annu Rev Genet 2019; 53:417-444. [PMID: 31537103 PMCID: PMC7025156 DOI: 10.1146/annurev-genet-120116-024755] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cryptococcus species utilize a variety of sexual reproduction mechanisms, which generate genetic diversity, purge deleterious mutations, and contribute to their ability to occupy myriad environmental niches and exhibit a range of pathogenic potential. The bisexual and unisexual cycles of pathogenic Cryptococcus species are stimulated by properties associated with their environmental niches and proceed through well-characterized signaling pathways and corresponding morphological changes. Genes governing mating are encoded by the mating-type (MAT) loci and influence pathogenesis, population dynamics, and lineage divergence in Cryptococcus. MAT has undergone significant evolutionary changes within the Cryptococcus genus, including transition from the ancestral tetrapolar state in nonpathogenic species to a bipolar mating system in pathogenic species, as well as several internal reconfigurations. Owing to the variety of established sexual reproduction mechanisms and the robust characterization of the evolution of mating and MAT in this genus, Cryptococcus species provide key insights into the evolution of sexual reproduction.
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Affiliation(s)
- Sheng Sun
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA;
| | - Marco A Coelho
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA;
| | - Márcia David-Palma
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA;
| | - Shelby J Priest
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA;
| | - Joseph Heitman
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA;
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24
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Ono J, Greig D. A Saccharomyces paradox: chromosomes from different species are incompatible because of anti-recombination, not because of differences in number or arrangement. Curr Genet 2019; 66:469-474. [PMID: 31745570 PMCID: PMC7198630 DOI: 10.1007/s00294-019-01038-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 12/03/2022]
Abstract
Many species are able to hybridize, but the sterility of these hybrids effectively prevents gene flow between the species, reproductively isolating them and allowing them to evolve independently. Yeast hybrids formed by Saccharomyces cerevisiae and Saccharomyces paradoxus parents are viable and able to grow by mitosis, but they are sexually sterile because most of the gametes they make by meiosis are inviable. The genomes of these two species are so diverged that they cannot recombine properly during meiosis, so they fail to segregate efficiently. Thus most hybrid gametes are inviable because they lack essential chromosomes. Recent work shows that chromosome mis-segregation explains nearly all observed hybrid sterility—genetic incompatibilities have only a small sterilising effect, and there are no significant sterilising incompatibilities in chromosome arrangement or number between the species. It is interesting that chromosomes from these species have diverged so much in sequence without changing in configuration, even though large chromosomal changes occur quite frequently, and sometimes beneficially, in evolving yeast populations.
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Langdon QK, Peris D, Kyle B, Hittinger CT. sppIDer: A Species Identification Tool to Investigate Hybrid Genomes with High-Throughput Sequencing. Mol Biol Evol 2019; 35:2835-2849. [PMID: 30184140 PMCID: PMC6231485 DOI: 10.1093/molbev/msy166] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The genomics era has expanded our knowledge about the diversity of the living world, yet harnessing high-throughput sequencing data to investigate alternative evolutionary trajectories, such as hybridization, is still challenging. Here we present sppIDer, a pipeline for the characterization of interspecies hybrids and pure species, that illuminates the complete composition of genomes. sppIDer maps short-read sequencing data to a combination genome built from reference genomes of several species of interest and assesses the genomic contribution and relative ploidy of each parental species, producing a series of colorful graphical outputs ready for publication. As a proof-of-concept, we use the genus Saccharomyces to detect and visualize both interspecies hybrids and pure strains, even with missing parental reference genomes. Through simulation, we show that sppIDer is robust to variable reference genome qualities and performs well with low-coverage data. We further demonstrate the power of this approach in plants, animals, and other fungi. sppIDer is robust to many different inputs and provides visually intuitive insight into genome composition that enables the rapid identification of species and their interspecies hybrids. sppIDer exists as a Docker image, which is a reusable, reproducible, transparent, and simple-to-run package that automates the pipeline and installation of the required dependencies (https://github.com/GLBRC/sppIDer; last accessed September 6, 2018).
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Affiliation(s)
- Quinn K Langdon
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI.,Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI
| | - David Peris
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI.,Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI.,DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI.,Department of Food Biotechnology, Institute of Agrochemistry and Food Technology (IATA), CSIC, Valencia, Spain
| | - Brian Kyle
- Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI
| | - Chris Todd Hittinger
- Laboratory of Genetics, J. F. Crow Institute for the Study of Evolution, Genome Center of Wisconsin, University of Wisconsin-Madison, Madison, WI.,Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI.,DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI
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Brysch-Herzberg M, Tobias A, Seidel M, Wittmann R, Wohlmann E, Fischer R, Dlauchy D, Peter G. Schizosaccharomyces osmophilus sp. nov., an osmophilic fission yeast occurring in bee bread of different solitary bee species. FEMS Yeast Res 2019; 19:5499025. [DOI: 10.1093/femsyr/foz038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 05/25/2019] [Indexed: 12/12/2022] Open
Affiliation(s)
- Michael Brysch-Herzberg
- Laboratory for Wine Microbiology, Department International Business, Heilbronn University, Max-Planck-Str. 39, 74081 Heilbronn, Germany
| | - Andrea Tobias
- National Collection of Agricultural and Industrial Microorganisms, Faculty of Food Science, Szent István University, Somlói út 14–16. H-1118 Budapest, Hungary
| | - Martin Seidel
- Laboratory for Wine Microbiology, Department International Business, Heilbronn University, Max-Planck-Str. 39, 74081 Heilbronn, Germany
| | - Rupert Wittmann
- Laboratory for Wine Microbiology, Department International Business, Heilbronn University, Max-Planck-Str. 39, 74081 Heilbronn, Germany
| | - Elke Wohlmann
- Karlsruhe Institute of Technology – KIT, Institute for Applied Bioscience, Department of Microbiology, Fritz-Haber-Weg 4, 76131 Karlsruhe, Germany
| | - Reinhard Fischer
- Karlsruhe Institute of Technology – KIT, Institute for Applied Bioscience, Department of Microbiology, Fritz-Haber-Weg 4, 76131 Karlsruhe, Germany
| | - Dénes Dlauchy
- National Collection of Agricultural and Industrial Microorganisms, Faculty of Food Science, Szent István University, Somlói út 14–16. H-1118 Budapest, Hungary
| | - Gabor Peter
- National Collection of Agricultural and Industrial Microorganisms, Faculty of Food Science, Szent István University, Somlói út 14–16. H-1118 Budapest, Hungary
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Fairhead C, Fischer G, Liti G, Neuvéglise C, Schacherer J. André Goffeau's imprinting on second generation yeast "genomologists". Yeast 2019; 36:167-175. [PMID: 30645763 DOI: 10.1002/yea.3377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/21/2018] [Accepted: 01/07/2019] [Indexed: 12/31/2022] Open
Abstract
All authors of the present paper have worked in labs that participated to the sequencing effort of the Saccharomyces cerevisiae reference genome, and we owe to this the fact that we have all chosen to work on genomics of yeasts. S. cerevisiae has been a popular model species for genetics since the 20th century as well as being a model for general eukaryotic cellular processes. Although it has also been used empirically in fermentation for millennia, there was until recently, a lack of knowledge about the natural and evolutionary history of this yeast. The achievement of the international effort to sequence its genome was the foundation for understanding many eukaryotic biological processes but also represented the first step towards the study of the genome and ecological diversity of yeast populations worldwide. We will describe recent advances in yeast comparative and population genomics that find their origins in the S. cerevisiae genome project initiated and pursued by André Goffeau.
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Affiliation(s)
- Cécile Fairhead
- UMR Génétique Quantitative et Evolution - Le Moulon, INRA - Université Paris-Sud - CNRS - AgroParisTech, Orsay, France
| | - Gilles Fischer
- Institut de Biologie Paris-Seine, Laboratory of Computational and Quantitative Biology, Sorbonne Université, CNRS, Paris, France
| | - Gianni Liti
- INSERM, IRCAN, Université Côte d'Azur, CNRS, Nice, France
| | - Cécile Neuvéglise
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Joseph Schacherer
- UMR 7156 Génétique Moléculaire, Génomique, Microbiologie, Université de Strasbourg, CNRS, Strasbourg, France
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28
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Sipiczki M. Interspecies Hybridisation and Genome Chimerisation in Saccharomyces: Combining of Gene Pools of Species and Its Biotechnological Perspectives. Front Microbiol 2018; 9:3071. [PMID: 30619156 PMCID: PMC6297871 DOI: 10.3389/fmicb.2018.03071] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/28/2018] [Indexed: 12/31/2022] Open
Abstract
Over the last one and a half decade, interspecies hybridisation has gained continuously increasing attention as a breeding technique suitable for transferring of genetic information between Saccharomyces species and mixing of their gene pools without genetic engineering. The hybrids frequently show positive transgressive phenotypes. Segregation of the hybrid genome results in mosaic (chimeric) strains that can outperform both the parents and the hybrids or exhibit novel positive phenotypic properties. Mitotic segregation can take place during the vegetative propagation of the sterile allodiploid hybrid cells. Meiotic segregation becomes possible after genome duplication (tetraploidisation) if it is followed by break-down of sterility. The allotetraploid cells are seemingly fertile because they form viable spores. But because of the autodiploidisation of the meiosis, sterile allodiploid spores are produced and thus the hybrid genome does not segregate (the second sterility barrier). However, malsegregation of MAT-carrying chromosomes in one of the subgenomes during allotetraploid meiosis (loss of MAT heterozygosity) results in fertile alloaneuploid spores. The breakdown of (the second) sterility barrier is followed by the loss of additional chromosomes in rapid succession and recombination between the subgenomes. The process (genome autoreduction in meiosis or GARMe) chimerises the genome and generates strains with chimeric (mosaic) genomes composed of various combinations of the genes of the parental strains. Since one of the subgenomes is preferentially reduced, the outcome is usually a strain having an (almost) complete genome from one parent and only a few genes or mosaics from the genome of the other parent. The fertility of the spores produced during GARMe provides possibilities also for introgressive backcrossing with one or the other parental strain, but genome chimerisation and gene transfer through series of backcrosses always with the same parent is likely to be less efficient than through meiotic or mitotic genome autoreduction. Hybridisation and the evolution of the hybrid genome (resizing and chimerisation) have been exploited in the improvement of industrial strains and applied to the breeding of new strains for specific purposes. Lists of successful projects are shown and certain major trends are discussed.
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Affiliation(s)
- Matthias Sipiczki
- Department of Genetics and Applied Microbiology, University of Debrecen, Debrecen, Hungary
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29
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Assembly of Schizosaccharomyces cryophilus chromosomes and their comparative genomic analyses revealed principles of genome evolution of the haploid fission yeasts. Sci Rep 2018; 8:14629. [PMID: 30279451 PMCID: PMC6168568 DOI: 10.1038/s41598-018-32525-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 09/10/2018] [Indexed: 11/23/2022] Open
Abstract
The fission yeast clade, which has a distinct life history from other yeasts, can provide important clues about evolutionary changes. To reveal these changes the large S. cryophilus supercontigs were assembled into chromosomes using synteny relationships and the conserved pericentromeric, subtelomeric genes. Togetherness of the supercontigs was confirmed by PCR. Investigation of the gene order revealed localisation of the rDNA arrays, more than 300 new conserved orthologues and proved that S. cryophilus supercontigs were mosaics of collinear blocks. PFGE analysis showed that size of the S. cryophilus chromosomes differ from the S. pombe chromosomes. Comparative genomic analyses of the newly assembled chromosomes confirmed that the closest relative of S. cryophilus was S. octosporus not just in sequence similarity but also in a structural way, and revealed that preservation of the conserved regions did not arise from the lower number of chromosomal rearrangements. Translocations were more typical in the closely related species, while the number of inversions increased with the phylogenetic distances. Our data suggested that sites of the chromosomal rearrangements were not random and often associated with repetitive sequences, structural- and nucleotide evolution might correlate. Chromosomal rearrangements of the fission yeasts compared to other lineages were also discussed.
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Whole Genome Sequencing, de Novo Assembly and Phenotypic Profiling for the New Budding Yeast Species Saccharomyces jurei. G3-GENES GENOMES GENETICS 2018; 8:2967-2977. [PMID: 30097472 PMCID: PMC6118302 DOI: 10.1534/g3.118.200476] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Saccharomyces sensu stricto complex consist of yeast species, which are not only important in the fermentation industry but are also model systems for genomic and ecological analysis. Here, we present the complete genome assemblies of Saccharomyces jurei, a newly discovered Saccharomyces sensu stricto species from high altitude oaks. Phylogenetic and phenotypic analysis revealed that S. jurei is more closely related to S. mikatae, than S. cerevisiae, and S. paradoxus. The karyotype of S. jurei presents two reciprocal chromosomal translocations between chromosome VI/VII and I/XIII when compared to the S. cerevisiae genome. Interestingly, while the rearrangement I/XIII is unique to S. jurei, the other is in common with S. mikatae strain IFO1815, suggesting shared evolutionary history of this species after the split between S. cerevisiae and S. mikatae. The number of Ty elements differed in the new species, with a higher number of Ty elements present in S. jurei than in S. cerevisiae. Phenotypically, the S. jurei strain NCYC 3962 has relatively higher fitness than the other strain NCYC 3947T under most of the environmental stress conditions tested and showed remarkably increased fitness in higher concentration of acetic acid compared to the other sensu stricto species. Both strains were found to be better adapted to lower temperatures compared to S. cerevisiae.
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31
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Bellon JR, Ford CM, Borneman AR, Chambers PJ. A Novel Approach to Isolating Improved Industrial Interspecific Wine Yeasts Using Chromosomal Mutations as Potential Markers for Increased Fitness. Front Microbiol 2018; 9:1442. [PMID: 30034376 PMCID: PMC6043810 DOI: 10.3389/fmicb.2018.01442] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/11/2018] [Indexed: 11/13/2022] Open
Abstract
Wine yeast breeding programs utilizing interspecific hybridization deliver cost-effective tools to winemakers looking to differentiate their wines through the development of new wine styles. The addition of a non-Saccharomyces cerevisiae genome to a commercial wine yeast can generate novel phenotypes ranging from wine flavor and aroma diversity to improvements in targeted fermentation traits. In the current study we utilized a novel approach to screen isolates from an evolving population for increased fitness in a S. cerevisiae × S. uvarum interspecific hybrid previously generated to incorporate the targeted phenotype of lower volatile acidity production. Sequential grape-juice fermentations provided a selective environment from which to screen isolates. Chromosomal markers were used in a novel approach to identify isolates with potential increased fitness. A strain with increased fitness relative to its parents was isolated from an early timepoint in the evolving population, thereby minimizing the risk of introducing collateral mutations and potentially undesirable phenotypes. The evolved strain retained the desirable fermentation trait of reduced volatile acidity production, along with other winemaking traits of importance while exhibiting improved fermentation kinetics.
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Affiliation(s)
- Jennifer R Bellon
- The Australian Wine Research Institute, Adelaide, SA, Australia.,School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
| | - Christopher M Ford
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
| | | | - Paul J Chambers
- The Australian Wine Research Institute, Adelaide, SA, Australia
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32
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Horizontal transfer and proliferation of Tsu4 in Saccharomyces paradoxus. Mob DNA 2018; 9:18. [PMID: 29942366 PMCID: PMC5998506 DOI: 10.1186/s13100-018-0122-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 05/31/2018] [Indexed: 11/10/2022] Open
Abstract
Background Recent evidence suggests that horizontal transfer plays a significant role in the evolution of of transposable elements (TEs) in eukaryotes. Many cases of horizontal TE transfer (HTT) been reported in animals and plants, however surprisingly few examples of HTT have been reported in fungi. Findings Here I report evidence for a novel HTT event in fungi involving Tsu4 in Saccharomyces paradoxus based on (i) unexpectedly high similarity between Tsu4 elements in S. paradoxus and S. uvarum, (ii) a patchy distribution of Tsu4 in S. paradoxus and general absence from its sister species S. cerevisiae, and (iii) discordance between the phylogenetic history of Tsu4 sequences and species in the Saccharomyces sensu stricto group. Available data suggests the HTT event likely occurred somewhere in the Nearctic, Neotropic or Indo-Australian part of the S. paradoxus species range, and that a lineage related to S. uvarum or S. eubayanus was the likely donor species. The HTT event has led to massive proliferation of Tsu4 in the South American lineage of S. paradoxus, which exhibits partial reproductive isolation with other strains of this species because of multiple reciprocal translocations. Full-length Tsu4 elements are associated with both breakpoints of one of these reciprocal translocations. Conclusions This work shows that comprehensive analysis of TE sequences in essentially-complete genome assemblies derived from long-read sequencing provides new opportunities to detect HTT events in fungi and other organisms. This work also provides support for the hypothesis that HTT and subsequent TE proliferation can induce genome rearrangements that contribute to post-zygotic isolation in yeast. Electronic supplementary material The online version of this article (10.1186/s13100-018-0122-7) contains supplementary material, which is available to authorized users.
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33
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Phenotypic diversification by enhanced genome restructuring after induction of multiple DNA double-strand breaks. Nat Commun 2018; 9:1995. [PMID: 29777105 PMCID: PMC5959919 DOI: 10.1038/s41467-018-04256-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 04/12/2018] [Indexed: 02/06/2023] Open
Abstract
DNA double-strand break (DSB)-mediated genome rearrangements are assumed to provide diverse raw genetic materials enabling accelerated adaptive evolution; however, it remains unclear about the consequences of massive simultaneous DSB formation in cells and their resulting phenotypic impact. Here, we establish an artificial genome-restructuring technology by conditionally introducing multiple genomic DSBs in vivo using a temperature-dependent endonuclease TaqI. Application in yeast and Arabidopsis thaliana generates strains with phenotypes, including improved ethanol production from xylose at higher temperature and increased plant biomass, that are stably inherited to offspring after multiple passages. High-throughput genome resequencing revealed that these strains harbor diverse rearrangements, including copy number variations, translocations in retrotransposons, and direct end-joinings at TaqI-cleavage sites. Furthermore, large-scale rearrangements occur frequently in diploid yeasts (28.1%) and tetraploid plants (46.3%), whereas haploid yeasts and diploid plants undergo minimal rearrangement. This genome-restructuring system (TAQing system) will enable rapid genome breeding and aid genome-evolution studies. DNA double-strand break (DSB) leads to genome rearrangements with various genetic and phenotypic effects. Here, the authors develop a tool to induce large-scale genome restructuring by introducing conditional multiple DNA breaks, and produce various traits in yeast and Arabidopsis thaliana.
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34
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Rajeh A, Lv J, Lin Z. Heterogeneous rates of genome rearrangement contributed to the disparity of species richness in Ascomycota. BMC Genomics 2018; 19:282. [PMID: 29690866 PMCID: PMC5937819 DOI: 10.1186/s12864-018-4683-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 04/16/2018] [Indexed: 01/06/2023] Open
Abstract
Background Chromosomal rearrangements have been shown to facilitate speciation through creating a barrier of gene flow. However, it is not known whether heterogeneous rates of chromosomal rearrangement at the genome scale contributed to the huge disparity of species richness among different groups of organisms, which is one of the most remarkable and pervasive patterns on Earth. The largest fungal phylum Ascomycota is an ideal study system to address this question because it comprises three subphyla (Saccharomycotina, Taphrinomycotina, and Pezizomycotina) whose species numbers differ by two orders of magnitude (59,000, 1000, and 150 respectively). Results We quantified rates of genome rearrangement for 71 Ascomycota species that have well-assembled genomes. The rates of inter-species genome rearrangement, which were inferred based on the divergence rates of gene order, are positively correlated with species richness at both ranks of subphylum and class in Ascomycota. This finding is further supported by our quantification of intra-species rearrangement rates based on paired-end genome sequencing data of 216 strains from three representative species, suggesting a difference of intrinsic genome instability among Ascomycota lineages. Our data also show that different rates of imbalanced rearrangements, such as deletions, are a major contributor to the heterogenous rearrangement rates. Conclusions Various lines of evidence in this study support that a higher rate of rearrangement at the genome scale might have accelerated the speciation process and increased species richness during the evolution of Ascomycota species. Our findings provide a plausible explanation for the species disparity among Ascomycota lineages, which will be valuable to unravel the underlying causes for the huge disparity of species richness in various taxonomic groups. Electronic supplementary material The online version of this article (10.1186/s12864-018-4683-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ahmad Rajeh
- Department of Biology, Saint Louis University, St. Louis, MO, 63103, USA.,Department of Computer Science, Saint Louis University, St. Louis, MO, 63103, USA
| | - Jie Lv
- Department of BioSciences, Rice University, Houston, TX, 77005, USA
| | - Zhenguo Lin
- Department of Biology, Saint Louis University, St. Louis, MO, 63103, USA.
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35
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Peris D, Pérez-Torrado R, Hittinger CT, Barrio E, Querol A. On the origins and industrial applications ofSaccharomyces cerevisiae×Saccharomyces kudriavzeviihybrids. Yeast 2017; 35:51-69. [DOI: 10.1002/yea.3283] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/15/2017] [Accepted: 09/27/2017] [Indexed: 12/22/2022] Open
Affiliation(s)
- David Peris
- Laboratory of Genetics, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, Genome Center of Wisconsin, DOE Great Lakes Bioenergy Research Center; University of Wisconsin-Madison; Madison WI USA
- Department of Food Biotechnology; Institute of Agrochemistry and Food Technology (IATA), CSIC; Valencia Spain
| | - Roberto Pérez-Torrado
- Department of Food Biotechnology; Institute of Agrochemistry and Food Technology (IATA), CSIC; Valencia Spain
| | - Chris Todd Hittinger
- Laboratory of Genetics, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, Genome Center of Wisconsin, DOE Great Lakes Bioenergy Research Center; University of Wisconsin-Madison; Madison WI USA
| | - Eladio Barrio
- Department of Food Biotechnology; Institute of Agrochemistry and Food Technology (IATA), CSIC; Valencia Spain
- Department of Genetics; University of Valencia; Valencia Spain
| | - Amparo Querol
- Department of Food Biotechnology; Institute of Agrochemistry and Food Technology (IATA), CSIC; Valencia Spain
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36
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Boynton PJ, Janzen T, Greig D. Modeling the contributions of chromosome segregation errors and aneuploidy to Saccharomyces hybrid sterility. Yeast 2017; 35:85-98. [PMID: 28967670 DOI: 10.1002/yea.3282] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/18/2017] [Accepted: 09/19/2017] [Indexed: 01/08/2023] Open
Abstract
Errors in meiosis can be important postzygotic barriers between different species. In Saccharomyces hybrids, chromosomal missegregation during meiosis I produces gametes with missing or extra chromosomes. Gametes with missing chromosomes are inviable, but we do not understand how extra chromosomes (disomies) influence hybrid gamete inviability. We designed a model predicting rates of missegregation in interspecific hybrid meioses assuming several different mechanisms of disomy tolerance, and compared predictions from the model with observations of sterility in hybrids between Saccharomyces yeast species. Sterility observations were consistent with the hypothesis that chromosomal missegregation causes hybrid sterility, and the model indicated that missegregation probabilities of 13-50% per chromosome can cause observed values of 90-99% hybrid sterility regardless of how cells tolerate disomies. Missing chromosomes in gametes are responsible for most infertility, but disomies may kill as many as 11% of the gametes produced by hybrids between Saccharomyces cerevisiae and Saccharomyces paradoxus. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Primrose J Boynton
- Environmental Genomics Group, Max Planck Institute for Evolutionary Biology, 24 306, Plön, Germany
| | - Thijs Janzen
- Department of Evolutionary Theory, Max Planck Institute for Evolutionary Biology, 24 306, Plön, Germany.,Institute for Biology and Environmental Sciences, Carl von Ossietzky University, 26 111, Oldenburg, Germany
| | - Duncan Greig
- Department of Genetics, Evolution, and Environment, University College London, London, WC1E 6BT, UK
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37
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Salazar AN, Gorter de Vries AR, van den Broek M, Wijsman M, de la Torre Cortés P, Brickwedde A, Brouwers N, Daran JMG, Abeel T. Nanopore sequencing enables near-complete de novo assembly of Saccharomyces cerevisiae reference strain CEN.PK113-7D. FEMS Yeast Res 2017; 17:4157789. [PMID: 28961779 PMCID: PMC5812507 DOI: 10.1093/femsyr/fox074] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 09/11/2017] [Indexed: 11/25/2022] Open
Abstract
The haploid Saccharomyces cerevisiae strain CEN.PK113-7D is a popular model system for metabolic engineering and systems biology research. Current genome assemblies are based on short-read sequencing data scaffolded based on homology to strain S288C. However, these assemblies contain large sequence gaps, particularly in subtelomeric regions, and the assumption of perfect homology to S288C for scaffolding introduces bias. In this study, we obtained a near-complete genome assembly of CEN.PK113-7D using only Oxford Nanopore Technology's MinION sequencing platform. Fifteen of the 16 chromosomes, the mitochondrial genome and the 2-μm plasmid are assembled in single contigs and all but one chromosome starts or ends in a telomere repeat. This improved genome assembly contains 770 Kbp of added sequence containing 248 gene annotations in comparison to the previous assembly of CEN.PK113-7D. Many of these genes encode functions determining fitness in specific growth conditions and are therefore highly relevant for various industrial applications. Furthermore, we discovered a translocation between chromosomes III and VIII that caused misidentification of a MAL locus in the previous CEN.PK113-7D assembly. This study demonstrates the power of long-read sequencing by providing a high-quality reference assembly and annotation of CEN.PK113-7D and places a caveat on assumed genome stability of microorganisms.
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Affiliation(s)
- Alex N. Salazar
- Delft Bioinformatics Lab, Delft University of Technology, 2628 CD Delft, The Netherlands
- Broad Institute of MIT and Harvard, Boston, MA 02142, USA
| | | | - Marcel van den Broek
- Department of Biotechnology, Delft University of Technology, 2628 BC Delft, The Netherlands
| | - Melanie Wijsman
- Department of Biotechnology, Delft University of Technology, 2628 BC Delft, The Netherlands
| | | | - Anja Brickwedde
- Department of Biotechnology, Delft University of Technology, 2628 BC Delft, The Netherlands
| | - Nick Brouwers
- Department of Biotechnology, Delft University of Technology, 2628 BC Delft, The Netherlands
| | - Jean-Marc G. Daran
- Department of Biotechnology, Delft University of Technology, 2628 BC Delft, The Netherlands
| | - Thomas Abeel
- Delft Bioinformatics Lab, Delft University of Technology, 2628 CD Delft, The Netherlands
- Broad Institute of MIT and Harvard, Boston, MA 02142, USA
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38
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Marsit S, Leducq JB, Durand É, Marchant A, Filteau M, Landry CR. Evolutionary biology through the lens of budding yeast comparative genomics. Nat Rev Genet 2017; 18:581-598. [DOI: 10.1038/nrg.2017.49] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Dujon BA, Louis EJ. Genome Diversity and Evolution in the Budding Yeasts (Saccharomycotina). Genetics 2017; 206:717-750. [PMID: 28592505 PMCID: PMC5499181 DOI: 10.1534/genetics.116.199216] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 04/03/2017] [Indexed: 12/15/2022] Open
Abstract
Considerable progress in our understanding of yeast genomes and their evolution has been made over the last decade with the sequencing, analysis, and comparisons of numerous species, strains, or isolates of diverse origins. The role played by yeasts in natural environments as well as in artificial manufactures, combined with the importance of some species as model experimental systems sustained this effort. At the same time, their enormous evolutionary diversity (there are yeast species in every subphylum of Dikarya) sparked curiosity but necessitated further efforts to obtain appropriate reference genomes. Today, yeast genomes have been very informative about basic mechanisms of evolution, speciation, hybridization, domestication, as well as about the molecular machineries underlying them. They are also irreplaceable to investigate in detail the complex relationship between genotypes and phenotypes with both theoretical and practical implications. This review examines these questions at two distinct levels offered by the broad evolutionary range of yeasts: inside the best-studied Saccharomyces species complex, and across the entire and diversified subphylum of Saccharomycotina. While obviously revealing evolutionary histories at different scales, data converge to a remarkably coherent picture in which one can estimate the relative importance of intrinsic genome dynamics, including gene birth and loss, vs. horizontal genetic accidents in the making of populations. The facility with which novel yeast genomes can now be studied, combined with the already numerous available reference genomes, offer privileged perspectives to further examine these fundamental biological questions using yeasts both as eukaryotic models and as fungi of practical importance.
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Affiliation(s)
- Bernard A Dujon
- Department Genomes and Genetics, Institut Pasteur, Centre National de la Recherche Scientifique UMR3525, 75724-CEDEX15 Paris, France
- Université Pierre et Marie Curie UFR927, 75005 Paris, France
| | - Edward J Louis
- Centre for Genetic Architecture of Complex Traits, University of Leicester, LE1 7RH, United Kingdom
- Department of Genetics, University of Leicester, LE1 7RH, United Kingdom
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Kim S, Liachko I, Brickner DG, Cook K, Noble WS, Brickner JH, Shendure J, Dunham MJ. The dynamic three-dimensional organization of the diploid yeast genome. eLife 2017; 6. [PMID: 28537556 PMCID: PMC5476426 DOI: 10.7554/elife.23623] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 05/22/2017] [Indexed: 12/14/2022] Open
Abstract
The budding yeast Saccharomyces cerevisiae is a long-standing model for the three-dimensional organization of eukaryotic genomes. However, even in this well-studied model, it is unclear how homolog pairing in diploids or environmental conditions influence overall genome organization. Here, we performed high-throughput chromosome conformation capture on diverged Saccharomyces hybrid diploids to obtain the first global view of chromosome conformation in diploid yeasts. After controlling for the Rabl-like orientation using a polymer model, we observe significant homolog proximity that increases in saturated culture conditions. Surprisingly, we observe a localized increase in homologous interactions between the HAS1-TDA1 alleles specifically under galactose induction and saturated growth. This pairing is accompanied by relocalization to the nuclear periphery and requires Nup2, suggesting a role for nuclear pore complexes. Together, these results reveal that the diploid yeast genome has a dynamic and complex 3D organization. DOI:http://dx.doi.org/10.7554/eLife.23623.001 Most of the DNA in human, yeast and other eukaryotic cells is packaged into long thread-like structures called chromosomes within a compartment of the cell called the nucleus. The chromosomes are folded to fit inside the nucleus and this organization influences how the DNA is read, copied, and repaired. The folding of chromosomes must be robust in order to protect the organism’s genetic material and yet be flexible enough to allow different parts of the DNA to be accessed in response to different signals. A biochemical technique called Hi-C can be used to detect the points of contact between different regions of a chromosome and between different chromosomes, thereby providing information on how the chromosomes are folded and arranged inside the nucleus. However, most animal cells contain two copies of each chromosome, and the Hi-C method is not able to distinguish between identical copies of chromosomes. As such, it remains unclear how much the chromosomes that can form pairs actually stick together in a cell’s nucleus. Unlike humans and most organisms, two distantly related budding yeast species can mate to produce a “hybrid” in which the chromosome copies can easily be distinguished from each other. Kim et al. now use Hi-C to analyze how chromosomes are organized in hybrid budding yeast cells. The experiments reveal that the copies of a chromosome contact each other more frequently than would be expected by chance. This is especially true for certain chromosomal regions and in hybrid yeast cells that are running out of their preferred nutrient, glucose. In these cells, the regions of both copies of chromosome 13 near a gene called TDA1 are pulled to the edge of the nucleus, which helps the copies to pair up and the gene to become active. The protein encoded by TDA1 then helps turn on other genes that allow the yeast to use nutrients other than glucose. Many questions remain about how and why DNA is organized the way it is, both in yeast and in other organisms. These findings will help guide future experiments testing how the two copies of each chromosome pair, as well as what purpose, if any, this pairing might serve for the cell. A better understanding of the fundamental process of DNA organization and its implications may ultimately lead to improved treatments for genetic diseases including developmental disorders and cancers. DOI:http://dx.doi.org/10.7554/eLife.23623.002
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Affiliation(s)
- Seungsoo Kim
- Department of Genome Sciences, University of Washington, Seattle, United States
| | - Ivan Liachko
- Department of Genome Sciences, University of Washington, Seattle, United States
| | - Donna G Brickner
- Department of Molecular Biosciences, Northwestern University, Evanston, United States
| | - Kate Cook
- Department of Genome Sciences, University of Washington, Seattle, United States
| | - William S Noble
- Department of Genome Sciences, University of Washington, Seattle, United States
| | - Jason H Brickner
- Department of Molecular Biosciences, Northwestern University, Evanston, United States
| | - Jay Shendure
- Department of Genome Sciences, University of Washington, Seattle, United States.,Howard Hughes Medical Institute, University of Washington, Seattle, United States
| | - Maitreya J Dunham
- Department of Genome Sciences, University of Washington, Seattle, United States
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Guillamón JM, Barrio E. Genetic Polymorphism in Wine Yeasts: Mechanisms and Methods for Its Detection. Front Microbiol 2017; 8:806. [PMID: 28522998 PMCID: PMC5415627 DOI: 10.3389/fmicb.2017.00806] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/19/2017] [Indexed: 01/09/2023] Open
Abstract
The processes of yeast selection for using as wine fermentation starters have revealed a great phenotypic diversity both at interspecific and intraspecific level, which is explained by a corresponding genetic variation among different yeast isolates. Thus, the mechanisms involved in promoting these genetic changes are the main engine generating yeast biodiversity. Currently, an important task to understand biodiversity, population structure and evolutionary history of wine yeasts is the study of the molecular mechanisms involved in yeast adaptation to wine fermentation, and on remodeling the genomic features of wine yeast, unconsciously selected since the advent of winemaking. Moreover, the availability of rapid and simple molecular techniques that show genetic polymorphisms at species and strain levels have enabled the study of yeast diversity during wine fermentation. This review will summarize the mechanisms involved in generating genetic polymorphisms in yeasts, the molecular methods used to unveil genetic variation, and the utility of these polymorphisms to differentiate strains, populations, and species in order to infer the evolutionary history and the adaptive evolution of wine yeasts, and to identify their influence on their biotechnological and sensorial properties.
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Affiliation(s)
- José M Guillamón
- Departamento de Biotecnología de los Alimentos, Instituto de Agroquímica y Tecnología de Alimentos - Consejo Superior de Investigaciones Científicas (CSIC)Valencia, Spain
| | - Eladio Barrio
- Departamento de Biotecnología de los Alimentos, Instituto de Agroquímica y Tecnología de Alimentos - Consejo Superior de Investigaciones Científicas (CSIC)Valencia, Spain.,Departamento de Genética, Universidad de ValenciaValencia, Spain
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Yue JX, Li J, Aigrain L, Hallin J, Persson K, Oliver K, Bergström A, Coupland P, Warringer J, Lagomarsino MC, Fischer G, Durbin R, Liti G. Contrasting evolutionary genome dynamics between domesticated and wild yeasts. Nat Genet 2017; 49:913-924. [PMID: 28416820 PMCID: PMC5446901 DOI: 10.1038/ng.3847] [Citation(s) in RCA: 204] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 03/22/2017] [Indexed: 12/13/2022]
Abstract
Structural rearrangements have long been recognized as an important source of genetic variation, with implications in phenotypic diversity and disease, yet their detailed evolutionary dynamics remain elusive. Here we use long-read sequencing to generate end-to-end genome assemblies for 12 strains representing major subpopulations of the partially domesticated yeast Saccharomyces cerevisiae and its wild relative Saccharomyces paradoxus. These population-level high-quality genomes with comprehensive annotation enable precise definition of chromosomal boundaries between cores and subtelomeres and a high-resolution view of evolutionary genome dynamics. In chromosomal cores, S. paradoxus shows faster accumulation of balanced rearrangements (inversions, reciprocal translocations and transpositions), whereas S. cerevisiae accumulates unbalanced rearrangements (novel insertions, deletions and duplications) more rapidly. In subtelomeres, both species show extensive interchromosomal reshuffling, with a higher tempo in S. cerevisiae. Such striking contrasts between wild and domesticated yeasts are likely to reflect the influence of human activities on structural genome evolution.
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Affiliation(s)
- Jia-Xing Yue
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Jing Li
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | | | - Johan Hallin
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Karl Persson
- Department of Chemistry and Molecular Biology, Gothenburg University, Gothenburg, Sweden
| | | | | | | | - Jonas Warringer
- Department of Chemistry and Molecular Biology, Gothenburg University, Gothenburg, Sweden
| | - Marco Cosentino Lagomarsino
- Laboratory of Computational and Quantitative Biology, Institut de Biologie Paris-Seine, UPMC University Paris 06, Sorbonne Universités, CNRS, Paris, France
| | - Gilles Fischer
- Laboratory of Computational and Quantitative Biology, Institut de Biologie Paris-Seine, UPMC University Paris 06, Sorbonne Universités, CNRS, Paris, France
| | | | - Gianni Liti
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
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Cytoplasmic-Nuclear Incompatibility Between Wild Isolates of Caenorhabditis nouraguensis. G3-GENES GENOMES GENETICS 2017; 7:823-834. [PMID: 28064190 PMCID: PMC5345712 DOI: 10.1534/g3.116.037101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
How species arise is a fundamental question in biology. Species can be defined as populations of interbreeding individuals that are reproductively isolated from other such populations. Therefore, understanding how reproductive barriers evolve between populations is essential for understanding the process of speciation. Hybrid incompatibility (for example, hybrid sterility or lethality) is a common and strong reproductive barrier in nature. Here we report a lethal incompatibility between two wild isolates of the nematode Caenorhabditis nouraguensis Hybrid inviability results from the incompatibility between a maternally inherited cytoplasmic factor from each strain and a recessive nuclear locus from the other. We have excluded the possibility that maternally inherited endosymbiotic bacteria cause the incompatibility by treating both strains with tetracycline and show that hybrid death is unaffected. Furthermore, cytoplasmic-nuclear incompatibility commonly occurs between other wild isolates, indicating that this is a significant reproductive barrier within C. nouraguensis We hypothesize that the maternally inherited cytoplasmic factor is the mitochondrial genome and that mitochondrial dysfunction underlies hybrid death. This system has the potential to shed light on the dynamics of divergent mitochondrial-nuclear coevolution and its role in promoting speciation.
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Eldarov MA, Kishkovskaia SA, Tanaschuk TN, Mardanov AV. Genomics and biochemistry of Saccharomyces cerevisiae wine yeast strains. BIOCHEMISTRY (MOSCOW) 2017; 81:1650-1668. [DOI: 10.1134/s0006297916130046] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Exploration of genetic and phenotypic diversity within Saccharomyces uvarum for driving strain improvement in winemaking. Appl Microbiol Biotechnol 2016; 101:2507-2521. [PMID: 27933455 DOI: 10.1007/s00253-016-8008-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/31/2016] [Accepted: 11/11/2016] [Indexed: 10/20/2022]
Abstract
The selection and genetic improvement of wine yeast is an ongoing process, since yeast strains should match new technologies in winemaking to satisfy evolving consumer preferences. A large genetic background is the necessary starting point for any genetic improvement programme. For this reason, we collected and characterized a large number of strains belonging to Saccharomyces uvarum. In particular, 70 strains were isolated from cold-stored must samples: they were identified and compared to S. uvarum strains originating from different collections, regarding fermentation profile, spore viability and stress response. The results demonstrate a large biodiversity among the new isolates, with particular emphasis to fermentation performances, genotypes and high spore viability, making the isolates suitable for further genetic improvement programmes. Furthermore, few of them are competitive with Saccharomyces cerevisiae and per se, suitable for wine fermentation, due to their resistance to stress, short lag phase and fermentation by-products.
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Recurrence of Chromosome Rearrangements and Reuse of DNA Breakpoints in the Evolution of the Triticeae Genomes. G3-GENES GENOMES GENETICS 2016; 6:3837-3847. [PMID: 27729435 PMCID: PMC5144955 DOI: 10.1534/g3.116.035089] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chromosomal rearrangements (CRs) play important roles in karyotype diversity and speciation. While many CR breakpoints have been characterized at the sequence level in yeast, insects, and primates, little is known about the structure of evolutionary CR breakpoints in plant genomes, which are much more dynamic in genome size and sequence organization. Here, we report identification of breakpoints of a translocation between chromosome arms 4L and 5L of Triticeae, which is fixed in several species, including diploid wheat and rye, by comparative mapping and analysis of the draft genome and chromosome survey sequences of the Triticeae species. The wheat translocation joined the ends of breakpoints downstream of a WD40 gene on 4AL and a gene of the PMEI family on 5AL. A basic helix-loop-helix transcription factor gene in 5AL junction was significantly restructured. Rye and wheat share the same position for the 4L breakpoint, but the 5L breakpoint positions are not identical, although very close in these two species, indicating the recurrence of 4L/5L translocations in the Triticeae. Although barley does not carry the translocation, collinearity across the breakpoints was violated by putative inversions and/or transpositions. Alignment with model grass genomes indicated that the translocation breakpoints coincided with ancient inversion junctions in the Triticeae ancestor. Our results show that the 4L/5L translocation breakpoints represent two CR hotspots reused during Triticeae evolution, and support breakpoint reuse as a widespread mechanism in all eukaryotes. The mechanisms of the recurrent translocation and its role in Triticeae evolution are also discussed.
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Hou J, Fournier T, Schacherer J. Species-wide survey reveals the various flavors of intraspecific reproductive isolation in yeast. FEMS Yeast Res 2016; 16:fow048. [PMID: 27288348 DOI: 10.1093/femsyr/fow048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2016] [Indexed: 12/13/2022] Open
Abstract
Exploring the origin and extent of reproductive isolation within the same species is valuable to capture early events to the onset of speciation. In multiple genetic models, reproductive isolation was recently observed at the intraspecific scale, indicating that the raw potential for speciation segregates readily within populations, which could be a rule rather than an exception in a broad context. We briefly recapitulate the molecular evidence of intrinsic post-zygotic isolation in major model organisms including Arabidopsis thaliana, Caenorhabditis elegans, Drosophila melanogaster and their close relatives. We then focus on recent advances in yeast and review the genetic basis of post-zygotic isolation within and between multiple members of the Saccharomyces genus, especially in Saccharomyces cerevisiae We discuss the role of various mechanisms involved in the onset of reproductive isolation including DNA sequence divergence, chromosomal rearrangement, cytonuclear as well as nuclear-nuclear genetic incompatibilities and provide a comparative view along a continuum of genetic differentiation, which encompasses intraspecific populations, recent delineating nascent species as well as closely related sister species in the same subphylum.
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Affiliation(s)
- Jing Hou
- Department of Genetics, Genomics and Microbiology, University of Strasbourg/CNRS UMR 7156, Strasbourg, France
| | - Téo Fournier
- Department of Genetics, Genomics and Microbiology, University of Strasbourg/CNRS UMR 7156, Strasbourg, France
| | - Joseph Schacherer
- Department of Genetics, Genomics and Microbiology, University of Strasbourg/CNRS UMR 7156, Strasbourg, France
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Naseeb S, Carter Z, Minnis D, Donaldson I, Zeef L, Delneri D. Widespread Impact of Chromosomal Inversions on Gene Expression Uncovers Robustness via Phenotypic Buffering. Mol Biol Evol 2016; 33:1679-96. [PMID: 26929245 PMCID: PMC4915352 DOI: 10.1093/molbev/msw045] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The nonrandom gene organization in eukaryotes plays a significant role in genome evolution and function. Chromosomal structural changes impact meiotic fitness and, in several organisms, are associated with speciation and rapid adaptation to different environments. Small sized chromosomal inversions, encompassing few genes, are pervasive in Saccharomyces “sensu stricto” species, while larger inversions are less common in yeasts compared with higher eukaryotes. To explore the effect of gene order on phenotype, reproductive isolation, and gene expression, we engineered 16 Saccharomyces cerevisiae strains carrying all possible paracentric and pericentric inversions between Ty1 elements, a natural substrate for rearrangements. We found that 4 inversions were lethal, while the other 12 did not show any fitness advantage or disadvantage in rich and minimal media. At meiosis, only a weak negative correlation with fitness was seen with the size of the inverted region. However, significantly lower fertility was seen in heterozygote invertant strains carrying recombination hotspots within the breakpoints. Altered transcription was observed throughout the genome rather than being overrepresented within the inversions. In spite of the large difference in gene expression in the inverted strains, mitotic fitness was not impaired in the majority of the 94 conditions tested, indicating that the robustness of the expression network buffers the deleterious effects of structural changes in several environments. Overall, our results support the notion that transcriptional changes may compensate for Ty-mediated rearrangements resulting in the maintenance of a constant phenotype, and suggest that large inversions in yeast are unlikely to be a selectable trait during vegetative growth.
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Affiliation(s)
- Samina Naseeb
- Computational and Evolutionary Biology Research Theme, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Zorana Carter
- Computational and Evolutionary Biology Research Theme, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - David Minnis
- Computational and Evolutionary Biology Research Theme, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Ian Donaldson
- Computational and Evolutionary Biology Research Theme, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Leo Zeef
- Computational and Evolutionary Biology Research Theme, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Daniela Delneri
- Computational and Evolutionary Biology Research Theme, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
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Tekaia F. Inferring Orthologs: Open Questions and Perspectives. GENOMICS INSIGHTS 2016; 9:17-28. [PMID: 26966373 PMCID: PMC4778853 DOI: 10.4137/gei.s37925] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 12/30/2015] [Accepted: 01/02/2016] [Indexed: 01/25/2023]
Abstract
With the increasing number of sequenced genomes and their comparisons, the detection of orthologs is crucial for reliable functional annotation and evolutionary analyses of genes and species. Yet, the dynamic remodeling of genome content through gain, loss, transfer of genes, and segmental and whole-genome duplication hinders reliable orthology detection. Moreover, the lack of direct functional evidence and the questionable quality of some available genome sequences and annotations present additional difficulties to assess orthology. This article reviews the existing computational methods and their potential accuracy in the high-throughput era of genome sequencing and anticipates open questions in terms of methodology, reliability, and computation. Appropriate taxon sampling together with combination of methods based on similarity, phylogeny, synteny, and evolutionary knowledge that may help detecting speciation events appears to be the most accurate strategy. This review also raises perspectives on the potential determination of orthology throughout the whole species phylogeny.
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Affiliation(s)
- Fredj Tekaia
- Institut Pasteur, Unit of Structural Microbiology, CNRS URA 3528 and University Paris Diderot, Sorbonne Paris Cité, Paris, France
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