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Paliulis LV, Stowe EL, Hashemi L, Pedraza-Aguado N, Striese C, Tulok S, Müller-Reichert T, Fabig G. Chromosome number, sex determination, and meiotic chromosome behavior in the praying mantid Hierodula membranacea. PLoS One 2022; 17:e0272978. [PMID: 35960713 PMCID: PMC9374246 DOI: 10.1371/journal.pone.0272978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 07/29/2022] [Indexed: 11/18/2022] Open
Abstract
Praying mantids are important models for studying a wide range of chromosome behaviors, yet few species of mantids have been characterized chromosomally. Here we show that the praying mantid Hierodula membranacea has a chromosome number of 2n = 27, and X1X1X2X2 (female): X1X2Y (male) sex determination. In male meiosis I, the X1, X2, and Y chromosomes of H. membranacea form a sex trivalent, with the Y chromosome associating with one spindle pole and the X1 and X2 chromosomes facing the opposite spindle pole. While it is possible that such a sex trivalent could experience different spindle forces on each side of the trivalent, in H. membranacea the sex trivalent aligns at the spindle equator with all of the autosomes, and then the sex chromosomes separate in anaphase I simultaneously with the autosomes. With this observation, H. membranacea can be used as a model system to study the balance of forces acting on a trivalent during meiosis I and analyze the functional importance of chromosome alignment in metaphase as a preparatory step for subsequent correct chromosome segregation.
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Affiliation(s)
- Leocadia V. Paliulis
- Biology Department, Bucknell University, Lewisburg, Pennsylvania, United States of America
- * E-mail:
| | - Emily L. Stowe
- Biology Department, Bucknell University, Lewisburg, Pennsylvania, United States of America
| | - Leila Hashemi
- Biology Department, Bucknell University, Lewisburg, Pennsylvania, United States of America
| | - Noemi Pedraza-Aguado
- Biology Department, Bucknell University, Lewisburg, Pennsylvania, United States of America
| | - Cynthia Striese
- Core Facility Cellular Imaging, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Silke Tulok
- Core Facility Cellular Imaging, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Thomas Müller-Reichert
- Core Facility Cellular Imaging, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Experimental Center, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Gunar Fabig
- Experimental Center, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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Dietzel S, Ferrando-May E, Fried H, Kukat C, Naumann A, Nitschke R, Pasierbek P, Peychl J, Rasse TM, Schroth-Diez B, Stöckl MT, Terjung S, Thuenauer R, Tulok S, Weidtkamp-Peters S. A Joint Action in Times of Pandemic: The German BioImaging Recommendations for Operating Imaging Core Facilities During the SARS-Cov-2 Emergency. Cytometry A 2020; 97:882-886. [PMID: 32583531 PMCID: PMC7361206 DOI: 10.1002/cyto.a.24178] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Received: 05/15/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 12/18/2022]
Abstract
Operating shared resource laboratories (SRLs) in times of pandemic is a challenge for research institutions. In a multiuser, high‐turnover working space, the transmission of infectious agents is difficult to control. To address this challenge, imaging core facility managers being members of German BioImaging discussed how shared microscopes could be operated with minimal risk of spreading SARS‐CoV‐2 between users and staff. Here, we describe the resulting guidelines and explain their rationale, with a focus on separating users in space and time, protective face masks, and keeping surfaces virus‐free. These recommendations may prove useful for other types of SRLs. © 2020 The Authors. Cytometry Part A published by Wiley Periodicals LLC. on behalf of International Society for Advancement of Cytometry.
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Affiliation(s)
- Steffen Dietzel
- Core Facility Bioimaging at the Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Großhaderner Straße 9, 82152, Germany
| | - Elisa Ferrando-May
- Bioimaging Center, University of Konstanz, Konstanz, Universitätsstrasse 10, 78464, Germany
| | - Hans Fried
- German Center for Neurodegenerative Diseases (DZNE), Light Microscopy Facility, Bonn, Venusberg-Campus 1, Gebäude 99, 53127, Germany
| | - Christian Kukat
- FACS & Imaging Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Joseph-Stelzmann-Str. 9b, 50931, Germany
| | - Angela Naumann
- Life Imaging Center and BIOSS Centre for Biological Signaling Studies, Albert-Ludwigs-University Freiburg, Freiburg, Habsburgerstr. 49, 79104, Germany
| | - Roland Nitschke
- Life Imaging Center and BIOSS Centre for Biological Signaling Studies, Albert-Ludwigs-University Freiburg, Freiburg, Habsburgerstr. 49, 79104, Germany
| | - Pawel Pasierbek
- Biooptics Core Facility, Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Dr. Bohr-Gasse 3, 1030, Austria
| | - Jan Peychl
- Light Microscopy Facility (LMF) Max Planck Institute of Molecular Cell Biology and Genetics Dresden, Dresden, Pfotenhauerstrasse 108, 01307, Germany
| | - Tobias Manuel Rasse
- Scientific Service Group Microscopy, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Ludwigstraße 43, 61231, Germany
| | - Britta Schroth-Diez
- Light Microscopy Facility (LMF) Max Planck Institute of Molecular Cell Biology and Genetics Dresden, Dresden, Pfotenhauerstrasse 108, 01307, Germany
| | - Martin Thomas Stöckl
- Bioimaging Center, University of Konstanz, Konstanz, Universitätsstrasse 10, 78464, Germany
| | - Stefan Terjung
- European Molecular Biology Laboratory, Advanced Light Microscopy Facility, Heidelberg, Meyerhofstraße 1, 69117, Germany
| | - Roland Thuenauer
- Advanced Light and Fluorescence Microscopy Facility, Centre for Structural Systems Biology (CSSB), Hamburg, Germany and Department of Biology, University of Hamburg, Hamburg, Germany
| | - Silke Tulok
- Technische Universität Dresden, Faculty of Medicine Carl Gustav Carus, Core Facility Cellular Imaging, Dresden, Fetscherstrasse 74, 01307, Germany
| | - Stefanie Weidtkamp-Peters
- Center for Advanced Imaging, Heinrich-Heine University Duesseldorf, Duesseldorf, Universitätsstr. 1, 40225, Germany
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- GerBI-GMB, c/o University of Konstanz, Konstanz, Universitätsstrasse 10, 78464, Germany
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