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Sorokina M, Barth E, Zulfiqar M, Kwantes M, Pohnert G, Steinbeck C. Draft genome assembly and sequencing dataset of the marine diatom Skeletonema cf. costatum RCC75. Data Brief 2022; 41:107931. [PMID: 35242913 PMCID: PMC8866145 DOI: 10.1016/j.dib.2022.107931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/20/2022] [Accepted: 02/03/2022] [Indexed: 12/02/2022] Open
Abstract
Diatoms (Bacillariophyceae) are a major constituent of the phytoplankton and have a universally recognized ecological importance. Between 1,000 and 1,300 diatom genera have been described in the literature, but only 10 nuclear genomes have been published and made available to the public up to date. Skeletonema costatum is a cosmopolitan marine diatom, principally occurring in coastal regions, and is one of the most abundant members of the Skeletonema genus. Here we present a draft assembly of the Skeletonema cf. costatum RCC75 genome, obtained from PacBio and Illumina NovaSeq data. This dataset will expand the knowledge of the Bacillariophyceae genetics and contribute to the global understanding of phytoplankton's physiological, ecological, and environmental functioning.
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Affiliation(s)
- Maria Sorokina
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University, Lessingstrasse 8, Jena, Germany
- Corresponding authors.
| | - Emanuel Barth
- Bioinformatics Core Facility, Friedrich Schiller University, Leutragraben 1, Jena, Germany
| | - Mahnoor Zulfiqar
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University, Lessingstrasse 8, Jena, Germany
| | - Michiel Kwantes
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University, Lessingstrasse 8, Jena, Germany
| | - Georg Pohnert
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University, Lessingstrasse 8, Jena, Germany
| | - Christoph Steinbeck
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University, Lessingstrasse 8, Jena, Germany
- Corresponding authors.
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Kwantes M, Wichard T. The APAF1_C/WD40 repeat domain-encoding gene from the sea lettuce Ulva mutabilis sheds light on the evolution of NB-ARC domain-containing proteins in green plants. Planta 2022; 255:76. [PMID: 35235070 PMCID: PMC8891106 DOI: 10.1007/s00425-022-03851-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/07/2022] [Indexed: 06/02/2023]
Abstract
We advance Ulva's genetic tractability and highlight its value as a model organism by characterizing its APAF1_C/WD40 domain-encoding gene, which belongs to a family that bears homology to R genes. The multicellular chlorophyte alga Ulva mutabilis (Ulvophyceae, Ulvales) is native to coastal ecosystems worldwide and attracts both high socio-economic and scientific interest. To further understand the genetic mechanisms that guide its biology, we present a protocol, based on adapter ligation-mediated PCR, for retrieving flanking sequences in U. mutabilis vector-insertion mutants. In the created insertional library, we identified a null mutant with an insertion in an apoptotic protease activating factor 1 helical domain (APAF1_C)/WD40 repeat domain-encoding gene. Protein domain architecture analysis combined with phylogenetic analysis revealed that this gene is a member of a subfamily that arose early in the evolution of green plants (Viridiplantae) through the acquisition of a gene that also encoded N-terminal nucleotide-binding adaptor shared by APAF-1, certain R-gene products and CED-4 (NB-ARC) and winged helix-like (WH-like) DNA-binding domains. Although phenotypic analysis revealed no mutant phenotype, gene expression levels in control plants correlated to the presence of bacterial symbionts, which U. mutabilis requires for proper morphogenesis. In addition, our analysis led to the discovery of a putative Ulva nucleotide-binding site and leucine-rich repeat (NBS-LRR) Resistance protein (R-protein), and we discuss how the emergence of these R proteins in green plants may be linked to the evolution of the APAF1_C/WD40 protein subfamily.
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Affiliation(s)
- Michiel Kwantes
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Lessingstr. 8, 07743, Jena, Germany.
| | - Thomas Wichard
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Lessingstr. 8, 07743, Jena, Germany.
- Jena School for Microbial Communication, 07743, Jena, Germany.
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Alsufyani T, Califano G, Deicke M, Grueneberg J, Weiss A, Engelen AH, Kwantes M, Mohr JF, Ulrich JF, Wichard T. Macroalgal-bacterial interactions: identification and role of thallusin in morphogenesis of the seaweed Ulva (Chlorophyta). J Exp Bot 2020; 71:3340-3349. [PMID: 32016363 PMCID: PMC7289720 DOI: 10.1093/jxb/eraa066] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/01/2020] [Indexed: 05/07/2023]
Abstract
Macroalgal microbiomes have core functions related to biofilm formation, growth, and morphogenesis of seaweeds. In particular, the growth and development of the sea lettuce Ulva spp. (Chlorophyta) depend on bacteria releasing morphogenetic compounds. Under axenic conditions, the macroalga Ulva mutabilis develops a callus-like phenotype with cell wall protrusions. However, co-culturing with Roseovarius sp. (MS2) and Maribacter sp. (MS6), which produce various stimulatory chemical mediators, completely recovers morphogenesis. This ecological reconstruction forms a tripartite community which can be further studied for its role in cross-kingdom interactions. Hence, our study sought to identify algal growth- and morphogenesis-promoting factors (AGMPFs) capable of phenocopying the activity of Maribacter spp. We performed bioassay-guided solid-phase extraction in water samples collected from U. mutabilis aquaculture systems. We uncovered novel ecophysiological functions of thallusin, a sesquiterpenoid morphogen, identified for the first time in algal aquaculture. Thallusin, released by Maribacter sp., induced rhizoid and cell wall formation at a concentration of 11 pmol l-1. We demonstrated that gametes acquired the iron complex of thallusin, thereby linking morphogenetic processes with intracellular iron homeostasis. Understanding macroalgae-bacteria interactions permits further elucidation of the evolution of multicellularity and cellular differentiation, and development of new applications in microbiome-mediated aquaculture systems.
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Affiliation(s)
- Taghreed Alsufyani
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Algal Research Laboratory, Chemistry Department, Science Faculty, Taif University, Taif, Saudi Arabia
| | - Gianmaria Califano
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Michael Deicke
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Jan Grueneberg
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
| | - Anne Weiss
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
| | - Aschwin H Engelen
- Centre for Marine Sciences (CCMAR), University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Michiel Kwantes
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Jan Frieder Mohr
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
| | - Johann F Ulrich
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Thomas Wichard
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
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De Clerck O, Kao SM, Bogaert KA, Blomme J, Foflonker F, Kwantes M, Vancaester E, Vanderstraeten L, Aydogdu E, Boesger J, Califano G, Charrier B, Clewes R, Del Cortona A, D’Hondt S, Fernandez-Pozo N, Gachon CM, Hanikenne M, Lattermann L, Leliaert F, Liu X, Maggs CA, Popper ZA, Raven JA, Van Bel M, Wilhelmsson PK, Bhattacharya D, Coates JC, Rensing SA, Van Der Straeten D, Vardi A, Sterck L, Vandepoele K, Van de Peer Y, Wichard T, Bothwell JH. Insights into the Evolution of Multicellularity from the Sea Lettuce Genome. Curr Biol 2018; 28:2921-2933.e5. [DOI: 10.1016/j.cub.2018.08.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/21/2018] [Accepted: 08/03/2018] [Indexed: 10/28/2022]
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Gan X, Hay A, Kwantes M, Haberer G, Hallab A, Ioio RD, Hofhuis H, Pieper B, Cartolano M, Neumann U, Nikolov LA, Song B, Hajheidari M, Briskine R, Kougioumoutzi E, Vlad D, Broholm S, Hein J, Meksem K, Lightfoot D, Shimizu KK, Shimizu-Inatsugi R, Imprialou M, Kudrna D, Wing R, Sato S, Huijser P, Filatov D, X Mayer KF, Mott R, Tsiantis M. Erratum: The Cardamine hirsuta genome offers insight into the evolution of morphological diversity. Nat Plants 2016; 2:16189. [PMID: 27819656 PMCID: PMC9119268 DOI: 10.1038/nplants.2016.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Gan X, Hay A, Kwantes M, Haberer G, Hallab A, Ioio RD, Hofhuis H, Pieper B, Cartolano M, Neumann U, Nikolov LA, Song B, Hajheidari M, Briskine R, Kougioumoutzi E, Vlad D, Broholm S, Hein J, Meksem K, Lightfoot D, Shimizu KK, Shimizu-Inatsugi R, Imprialou M, Kudrna D, Wing R, Sato S, Huijser P, Filatov D, Mayer KFX, Mott R, Tsiantis M. The Cardamine hirsuta genome offers insight into the evolution of morphological diversity. Nat Plants 2016; 2:16167. [PMID: 27797353 PMCID: PMC8826541 DOI: 10.1038/nplants.2016.167] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 09/30/2016] [Indexed: 05/18/2023]
Abstract
Finding causal relationships between genotypic and phenotypic variation is a key focus of evolutionary biology, human genetics and plant breeding. To identify genome-wide patterns underlying trait diversity, we assembled a high-quality reference genome of Cardamine hirsuta, a close relative of the model plant Arabidopsis thaliana. We combined comparative genome and transcriptome analyses with the experimental tools available in C. hirsuta to investigate gene function and phenotypic diversification. Our findings highlight the prevalent role of transcription factors and tandem gene duplications in morphological evolution. We identified a specific role for the transcriptional regulators PLETHORA5/7 in shaping leaf diversity and link tandem gene duplication with differential gene expression in the explosive seed pod of C. hirsuta. Our work highlights the value of comparative approaches in genetically tractable species to understand the genetic basis for evolutionary change.
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Affiliation(s)
- Xiangchao Gan
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Angela Hay
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Michiel Kwantes
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Georg Haberer
- Plant Genome and Systems Biology, Helmholtz Zentrum Munich, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
| | - Asis Hallab
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Raffaele Dello Ioio
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
- Present Address: †Present address: Department of Biology and Biotechnology, Università La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy (R.D.I.). The Global Food Security, BBSRC, Polaris House, North Star Avenue, Swindon SN2 1UH, UK (E.K.). Institute of Biotechnology, Viikinkaari 1, 00014 University of Helsinki, Finland (S.B.),
| | - Hugo Hofhuis
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Bjorn Pieper
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Maria Cartolano
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Ulla Neumann
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Lachezar A. Nikolov
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Baoxing Song
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Mohsen Hajheidari
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Roman Briskine
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Evangelia Kougioumoutzi
- Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB Oxford UK
- Present Address: †Present address: Department of Biology and Biotechnology, Università La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy (R.D.I.). The Global Food Security, BBSRC, Polaris House, North Star Avenue, Swindon SN2 1UH, UK (E.K.). Institute of Biotechnology, Viikinkaari 1, 00014 University of Helsinki, Finland (S.B.),
| | - Daniela Vlad
- Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB Oxford UK
| | - Suvi Broholm
- Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB Oxford UK
- Present Address: †Present address: Department of Biology and Biotechnology, Università La Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy (R.D.I.). The Global Food Security, BBSRC, Polaris House, North Star Avenue, Swindon SN2 1UH, UK (E.K.). Institute of Biotechnology, Viikinkaari 1, 00014 University of Helsinki, Finland (S.B.),
| | - Jotun Hein
- Department of Statistics, University of Oxford, 1 South Parks Road, OX1 3TG Oxford UK
| | - Khalid Meksem
- Department of Plant, Soil and Agricultural Systems, Southern Illinois University, Carbondale, 62901 Illinois USA
| | - David Lightfoot
- Department of Plant, Soil and Agricultural Systems, Southern Illinois University, Carbondale, 62901 Illinois USA
| | - Kentaro K. Shimizu
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Rie Shimizu-Inatsugi
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Martha Imprialou
- Department of Statistics, University of Oxford, 1 South Parks Road, OX1 3TG Oxford UK
| | - David Kudrna
- Arizona Genomics Institute, School of Plant Sciences and BIO5 Institute for Collaborative Research, University of Arizona, 1657 East Helen Street, Tucson, 85721 Arizona USA
| | - Rod Wing
- Arizona Genomics Institute, School of Plant Sciences and BIO5 Institute for Collaborative Research, University of Arizona, 1657 East Helen Street, Tucson, 85721 Arizona USA
| | - Shusei Sato
- Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB Oxford UK
| | - Peter Huijser
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
| | - Dmitry Filatov
- Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB Oxford UK
| | - Klaus F. X. Mayer
- Plant Genome and Systems Biology, Helmholtz Zentrum Munich, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
| | - Richard Mott
- UCL Genetics Institute, University College London, Gower Street, WC1E 6BT London UK
| | - Miltos Tsiantis
- Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Köln, Germany
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Rast-Somssich MI, Broholm S, Jenkins H, Canales C, Vlad D, Kwantes M, Bilsborough G, Dello Ioio R, Ewing RM, Laufs P, Huijser P, Ohno C, Heisler MG, Hay A, Tsiantis M. Alternate wiring of a KNOXI genetic network underlies differences in leaf development of A. thaliana and C. hirsuta. Genes Dev 2016; 29:2391-404. [PMID: 26588991 PMCID: PMC4691893 DOI: 10.1101/gad.269050.115] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In this study, Rast-Somssich et al. investigated morphological differences between C. hirsuta, which has complex leaves with leaflets, and its relative, A. thaliana, which has simple leaves. By transferring single genes from one species into another under their endogenous regulatory elements, the authors show that leaf form can be modified in the recipient species, extending our knowledge of how paralogous genes are regulated in a complex eukaryote. Two interrelated problems in biology are understanding the regulatory logic and predictability of morphological evolution. Here, we studied these problems by comparing Arabidopsis thaliana, which has simple leaves, and its relative, Cardamine hirsuta, which has dissected leaves comprising leaflets. By transferring genes between the two species, we provide evidence for an inverse relationship between the pleiotropy of SHOOTMERISTEMLESS (STM) and BREVIPEDICELLUS (BP) homeobox genes and their ability to modify leaf form. We further show that cis-regulatory divergence of BP results in two alternative configurations of the genetic networks controlling leaf development. In C. hirsuta, ChBP is repressed by the microRNA164A (MIR164A)/ChCUP-SHAPED COTYLEDON (ChCUC) module and ChASYMMETRIC LEAVES1 (ChAS1), thus creating cross-talk between MIR164A/CUC and AS1 that does not occur in A. thaliana. These different genetic architectures lead to divergent interactions of network components and growth regulation in each species. We suggest that certain regulatory genes with low pleiotropy are predisposed to readily integrate into or disengage from conserved genetic networks influencing organ geometry, thus rapidly altering their properties and contributing to morphological divergence.
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Affiliation(s)
- Madlen I Rast-Somssich
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
| | - Suvi Broholm
- Department of Plant Sciences, University of Oxford, Oxford OX1 3BR, United Kingdom
| | - Huw Jenkins
- Department of Plant Sciences, University of Oxford, Oxford OX1 3BR, United Kingdom
| | - Claudia Canales
- Department of Plant Sciences, University of Oxford, Oxford OX1 3BR, United Kingdom
| | - Daniela Vlad
- Department of Plant Sciences, University of Oxford, Oxford OX1 3BR, United Kingdom
| | - Michiel Kwantes
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
| | - Gemma Bilsborough
- Department of Plant Sciences, University of Oxford, Oxford OX1 3BR, United Kingdom
| | - Raffaele Dello Ioio
- Dipartimento di Biologia e Biotecnologie, Università di Roma, Sapienza, 70-00185 Rome, Italy
| | - Rob M Ewing
- Centre for Biological Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Patrick Laufs
- Institut Jean-Pierre Bourgin, UMR1318, Institut National de la Recherche Agronomique (INRA)-Institut des Sciences et Industries du Vivant et de l'Environment (AgroParisTech), INRA Centre de Versailles-Grignon, 78026 Versailles Cedex 69117, France
| | - Peter Huijser
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
| | - Carolyn Ohno
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Marcus G Heisler
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Angela Hay
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
| | - Miltos Tsiantis
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
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Rast-Somssich MI, Broholm S, Jenkins H, Canales C, Vlad D, Kwantes M, Bilsborough G, Dello Ioio R, Ewing RM, Laufs P, Huijser P, Ohno C, Heisler MG, Hay A, Tsiantis M. Corrigendum: Alternate wiring of a KNOXI genetic network underlies differences in leaf development of A. thaliana and C. hirsuta. Genes Dev 2016; 30:132. [PMID: 26728558 PMCID: PMC4701975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Kwantes M, Liebsch D, Verelst W. How MIKC* MADS-box genes originated and evidence for their conserved function throughout the evolution of vascular plant gametophytes. Mol Biol Evol 2011; 29:293-302. [PMID: 21813465 DOI: 10.1093/molbev/msr200] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Land plants have a remarkable life cycle that alternates between a diploid sporophytic and a haploid gametophytic generation, both of which are multicellular and changed drastically during evolution. Classical MIKC MADS-domain (MIKCC) transcription factors are famous for their role in sporophytic development and are considered crucial for its evolution. About the regulation of gametophyte development, in contrast, little is known. Recent evidence indicated that the closely related MIKC* MADS-domain proteins are important for the functioning of the Arabidopsis thaliana male gametophyte (pollen). Furthermore, also in bryophytes, several MIKC* genes are expressed in the haploid generation. Therefore, that MIKC* genes have a similar role in the evolution of the gametophytic phase as MIKCC genes have in the sporophyte is a tempting hypothesis. To get a comprehensive view of the involvement of MIKC* genes in gametophyte evolution, we isolated them from a broad variety of vascular plants, including the lycophyte Selaginella moellendorffii, the fern Ceratopteris richardii, and representatives of several flowering plant lineages. Phylogenetic analysis revealed an extraordinary conservation not found in MIKCC genes. Moreover, expression and interaction studies suggest that a conserved and characteristic network operates in the gametophytes of all tested model organisms. Additionally, we found that MIKC* genes probably evolved from an ancestral MIKCC-like gene by a duplication in the Keratin-like region. We propose that this event facilitated the independent evolution of MIKC* and MIKCC protein networks and argue that whereas MIKCC genes diversified and attained new functions, MIKC* genes retained a conserved role in the gametophyte during land plant evolution.
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Affiliation(s)
- Michiel Kwantes
- Department of Plant Breeding and Genetics, Max Planck Institute for Plant Breeding Research, Cologne, Germany.
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Boxma B, Ricard G, van Hoek AHAM, Severing E, Moon-van der Staay SY, van der Staay GWM, van Alen TA, de Graaf RM, Cremers G, Kwantes M, McEwan NR, Newbold CJ, Jouany JP, Michalowski T, Pristas P, Huynen MA, Hackstein JHP. The [FeFe] hydrogenase of Nyctotherus ovalis has a chimeric origin. BMC Evol Biol 2007; 7:230. [PMID: 18021395 PMCID: PMC2216082 DOI: 10.1186/1471-2148-7-230] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Accepted: 11/16/2007] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The hydrogenosomes of the anaerobic ciliate Nyctotherus ovalis show how mitochondria can evolve into hydrogenosomes because they possess a mitochondrial genome and parts of an electron-transport chain on the one hand, and a hydrogenase on the other hand. The hydrogenase permits direct reoxidation of NADH because it consists of a [FeFe] hydrogenase module that is fused to two modules, which are homologous to the 24 kDa and the 51 kDa subunits of a mitochondrial complex I. RESULTS The [FeFe] hydrogenase belongs to a clade of hydrogenases that are different from well-known eukaryotic hydrogenases. The 24 kDa and the 51 kDa modules are most closely related to homologous modules that function in bacterial [NiFe] hydrogenases. Paralogous, mitochondrial 24 kDa and 51 kDa modules function in the mitochondrial complex I in N. ovalis. The different hydrogenase modules have been fused to form a polyprotein that is targeted into the hydrogenosome. CONCLUSION The hydrogenase and their associated modules have most likely been acquired by independent lateral gene transfer from different sources. This scenario for a concerted lateral gene transfer is in agreement with the evolution of the hydrogenosome from a genuine ciliate mitochondrion by evolutionary tinkering.
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Affiliation(s)
- Brigitte Boxma
- Department of Evolutionary Microbiology, Faculty of Science, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands.
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Guyot L, Kwantes M, Legue E, Estenne B, Barbe G. Has enterococcus to be regarded as pathogenic in biliary surgery? Comments on antibiotic prophylaxis using only one preoperative dose of ceftriaxone. J Chemother 1989; 1:990-1. [PMID: 16312737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- L Guyot
- Correspondence: Centre Hospitalier de Versailles 78157 Le Chesnay, France
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Blin C, Benoit M, Le Pennec MP, Kwantes M, Ghnassia JC. [Antibiotic sensitivity testing on the automatic MS-2. Use of antibiotic discs from 3 different sources]. Pathol Biol (Paris) 1985; 33:517-20. [PMID: 3911146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The MS-2 automate for antibiotic susceptibility testing was experimented under conditions different from those recommended by the manufacturer, namely using antibiotic discs from different firms. Susceptibility of eight Enterobacteriaceae strains recovered from urine to nine antibiotics borne by discs from three different firms was tested. Results obtained with the different brands of discs were dissonant in less than 7% of cases (major and minor disagreements compounded). Major discrepancies ranged from 2.8 to 4.2% according to the origin of discs. The reproducibility study found consistent results in 87.5% of cases, and satisfactory results (i.e. minor discrepancies excluded) in 93.5% of cases.
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Le Pennec MP, Blin C, Ang-Chin S, Menanteau JP, Dortu JA, Kwantes M. [Atypical mycobacteria and mycobacteriosis]. Pathol Biol (Paris) 1984; 32:459-62. [PMID: 6739156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Atypical mycobacteria were isolated from 16 patients admitted to the Versailles Hospital Center over a two-years period (1981-1982). Two cases of pulmonary disease due to M. avium-intracellulare and one case of skin disease due to M. marinum were diagnosed. Pulmonary infection remained doubtful in two patients despite repeated recovery of M. Kansasii and M. chelonei.
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Andrieu J, Audebrand C, Gardon JD, Lapeyrere X, Doll J, Kwantes M. [Fulminating pneumococcal septicemia (author's transl)]. Sem Hop 1979; 55:1021-5. [PMID: 227089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Two cases of fulminating pneumococcal septicemia (FSP) are reported, and 47 confirmed cases were discovered after a review of the published literature. The syndrome is that of a malignant infection with fever, collapse, and disseminated intravascular coagulation, with a rapid mortal outcome in most cases. Etiologically, FSP is usually the consequence of functional or anatomical asplenia, and the relative frequency of this affection after splenectomy following trauma confirms this observation. Lack of a splenic filter and a deficiency in the phagocytic system are the reasons for microbial proliferation in the blood, and the lymphocytic defence mechanisms are inactive because of the absence of any focus of infection.
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Andrieu J, Kwantes M, Lapeyrere X, Gardon JD. [Infections caused by Bacteroides fragilis resistant to clindamycin: 2 further cases]. Nouv Presse Med 1978; 7:571-2. [PMID: 643586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Guran P, Beal G, Browaeys J, Kwantes M, Busuttil R. [Benigne multi-recurrent meningitis (Mollaret's disease). A case in a child of 2 years and 8 months]. Rev Neurol (Paris) 1977; 133:245-54. [PMID: 929029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The authors report a case of meningitis, presenting all characteristics of the disease described in 1944 by P. Mollaret, occurring in a child aged 2 years and 8 months. They stress the rarity of cases on childhood. The cells found in the cerebrospinal fluid, photographs of which are included, are fragile and may undergo early lysis. They are present in association with lymphocytes and polynuclears, giving the slide examined a highly characteristic mottled appearance. The authors raise the question of the morphological similarity of these large cells, with their polygonal contour and small central nucleus, with an epithelium.
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Andrieu J, Kwantes M, Rey A. [Letter: Bacterioid infections in hospital practice]. Nouv Presse Med 1975; 4:2410. [PMID: 1196865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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