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M'kacher R, Colicchio B, Marquet V, Borie C, Najar W, Hempel WM, Heidingsfelder L, Oudrhiri N, Al Jawhari M, Wilhelm-Murer N, Miguet M, Dieterlen A, Deschênes G, Tabet AC, Junker S, Grynberg M, Fenech M, Bennaceur-Griscelli A, Voisin P, Carde P, Jeandidier E, Yardin C. Telomere aberrations, including telomere loss, doublets, and extreme shortening, are increased in patients with infertility. Fertil Steril 2020; 115:164-173. [PMID: 33272625 DOI: 10.1016/j.fertnstert.2020.07.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To test the hypothesis that telomere shortening and/or loss are risk factors for infertility. DESIGN Retrospective analysis of the telomere status in patients with infertility using conventional cytogenetic data collected prospectively. SETTING Academic centers. PATIENT(S) Cytogenetic slides with cultured peripheral lymphocytes from 50 patients undergoing fertility treatment and 150 healthy donors, including 100 donors matched for age. INTERVENTION(S) Cytogenetic slides were used to detect chromosomal and telomere aberrations. MAIN OUTCOME MEASURE(S) Telomere length and telomere aberrations were analyzed after telomere and centromere staining. RESULT(S) The mean telomere length of patients consulting for infertility was significantly less than that of healthy donors of similar age. Moreover, patients with infertility showed significantly more extreme telomere loss and telomere doublet formation than healthy controls. Telomere shortening and/or telomere aberrations were more pronounced in patients with structural chromosomal aberrations. Dicentric chromosomes were identified in 6/13 patients, with constitutional chromosomal aberrations leading to chromosomal instability that correlated with chromosomal end-to-end fusions. CONCLUSION(S) Our findings demonstrate the feasibility of analyzing telomere aberrations in addition to chromosomal aberrations, using cytogenetic slides. Telomere attrition and/or dysfunction represent the main common cytogenetic characteristic of patients with infertility, leading to potential implications for fertility assessment. Pending further studies, these techniques that correlate the outcome of assisted reproduction and telomere integrity status may represent a novel and useful diagnostic and/or prognostic tool for medical care in this field.
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Affiliation(s)
- Radhia M'kacher
- Cell Environment, DNA Damage Research & Development, Paris, France.
| | - Bruno Colicchio
- Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, Mulhouse, France
| | - Valentine Marquet
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l'Enfant, Centre hospitalo-universitaire Dupuytren, Limoges, France
| | - Claire Borie
- Assitance Pubique-Hopitaux de Paris (APHP)-Service d'hématologie-Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/INSERM 935, Villejuif, France
| | - Wala Najar
- Cell Environment, DNA Damage Research & Development, Paris, France; Faculté de médecine Paris Centre, Université de Paris, Paris, France
| | - William M Hempel
- Cell Environment, DNA Damage Research & Development, Paris, France
| | | | - Noufissa Oudrhiri
- Assitance Pubique-Hopitaux de Paris (APHP)-Service d'hématologie-Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/INSERM 935, Villejuif, France
| | | | - Nadège Wilhelm-Murer
- Service de génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace, Mulhouse, France
| | - Marguerite Miguet
- Service de génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace, Mulhouse, France
| | - Alain Dieterlen
- Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, Mulhouse, France
| | | | | | - Steffen Junker
- Institute of Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Michael Grynberg
- Department of Reproductive Medicine and Fertility Preservation, Hôpital Antoine Béclère, Clamart, France
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia; Genome Health Foundation, North Brighton, South Australia, Australia
| | - Annelise Bennaceur-Griscelli
- Assitance Pubique-Hopitaux de Paris (APHP)-Service d'hématologie-Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/INSERM 935, Villejuif, France
| | - Philippe Voisin
- Cell Environment, DNA Damage Research & Development, Paris, France
| | - Patrice Carde
- Department of Hematology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Eric Jeandidier
- Service de génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace, Mulhouse, France
| | - Catherine Yardin
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l'Enfant, Centre hospitalo-universitaire Dupuytren, Limoges, France; CNRS, XLIM, UMR 7252, University of Limoges, Limoges, France
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Bradshaw RE, Sim AD, Chettri P, Dupont P, Guo Y, Hunziker L, McDougal RL, Van der Nest A, Fourie A, Wheeler D, Cox MP, Barnes I. Global population genomics of the forest pathogen Dothistroma septosporum reveal chromosome duplications in high dothistromin-producing strains. Mol Plant Pathol 2019; 20:784-799. [PMID: 30938073 PMCID: PMC6637865 DOI: 10.1111/mpp.12791] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Dothistroma needle blight is one of the most devastating pine tree diseases worldwide. New and emerging epidemics have been frequent over the last 25 years, particularly in the Northern Hemisphere, where they are in part associated with changing weather patterns. One of the main Dothistroma needle blight pathogens, Dothistroma septosporum, has a global distribution but most molecular plant pathology research has been confined to Southern Hemisphere populations that have limited genetic diversity. Extensive genomic and transcriptomic data are available for a D. septosporum reference strain from New Zealand, where an introduced clonal population of the pathogen predominates. Due to the global importance of this pathogen, we determined whether the genome of this reference strain is representative of the species worldwide by sequencing the genomes of 18 strains sampled globally from different pine hosts. Genomic polymorphism shows substantial variation within the species, clustered into two distinct groups of strains with centres of diversity in Central and South America. A reciprocal chromosome translocation uniquely identifies the New Zealand strains. Globally, strains differ in their production of the virulence factor dothistromin, with extremely high production levels in strain ALP3 from Germany. Comparisons with the New Zealand reference revealed that several strains are aneuploids; for example, ALP3 has duplications of three chromosomes. Increased gene copy numbers therefore appear to contribute to increased production of dothistromin, emphasizing that studies of population structure are a necessary adjunct to functional analyses of genetic polymorphisms to identify the molecular basis of virulence in this important forest pathogen.
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Affiliation(s)
- Rosie E. Bradshaw
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
| | - Andre D. Sim
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
| | - Pranav Chettri
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
| | - Pierre‐Yves Dupont
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
- Institute of Environmental Science and ResearchChristchurch8041New Zealand
| | - Yanan Guo
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
| | - Lukas Hunziker
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
| | | | - Ariska Van der Nest
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI)University of PretoriaPretoriaSouth Africa
| | - Arista Fourie
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI)University of PretoriaPretoriaSouth Africa
| | - David Wheeler
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
- NSW Department of Primary IndustriesOrange Agricultural InstituteAustralia
| | - Murray P. Cox
- School of Fundamental Sciences and Bio‐Protection Research CentreMassey UniversityPalmerston North4410New Zealand
| | - Irene Barnes
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI)University of PretoriaPretoriaSouth Africa
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Cheng J, Khan MA, Qiu WM, Li J, Zhou H, Zhang Q, Guo W, Zhu T, Peng J, Sun F, Li S, Korban SS, Han Y. Diversification of genes encoding granule-bound starch synthase in monocots and dicots is marked by multiple genome-wide duplication events. PLoS One 2012; 7:e30088. [PMID: 22291904 PMCID: PMC3264551 DOI: 10.1371/journal.pone.0030088] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Accepted: 12/13/2011] [Indexed: 11/18/2022] Open
Abstract
Starch is one of the major components of cereals, tubers, and fruits. Genes encoding granule-bound starch synthase (GBSS), which is responsible for amylose synthesis, have been extensively studied in cereals but little is known about them in fruits. Due to their low copy gene number, GBSS genes have been used to study plant phylogenetic and evolutionary relationships. In this study, GBSS genes have been isolated and characterized in three fruit trees, including apple, peach, and orange. Moreover, a comprehensive evolutionary study of GBSS genes has also been conducted between both monocots and eudicots. Results have revealed that genomic structures of GBSS genes in plants are conserved, suggesting they all have evolved from a common ancestor. In addition, the GBSS gene in an ancestral angiosperm must have undergone genome duplication ∼251 million years ago (MYA) to generate two families, GBSSI and GBSSII. Both GBSSI and GBSSII are found in monocots; however, GBSSI is absent in eudicots. The ancestral GBSSII must have undergone further divergence when monocots and eudicots split ∼165 MYA. This is consistent with expression profiles of GBSS genes, wherein these profiles are more similar to those of GBSSII in eudicots than to those of GBSSI genes in monocots. In dicots, GBSSII must have undergone further divergence when rosids and asterids split from each other ∼126 MYA. Taken together, these findings suggest that it is GBSSII rather than GBSSI of monocots that have orthologous relationships with GBSS genes of eudicots. Moreover, diversification of GBSS genes is mainly associated with genome-wide duplication events throughout the evolutionary course of history of monocots and eudicots.
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Affiliation(s)
- Jun Cheng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Muhammad Awais Khan
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Wen-Ming Qiu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, Hubei, China
| | - Jing Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Hui Zhou
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Qiong Zhang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Wenwu Guo
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, Hubei, China
| | - Tingting Zhu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Junhua Peng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Fengjie Sun
- School of Science and Technology, Georgia Gwinnett College, Lawrenceville, Georgia, United States of America
| | - Shaohua Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Schuyler S. Korban
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, Illinois, United States of America
- * E-mail: (SK); (YH)
| | - Yuepeng Han
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of the Chinese Academy of Sciences, Wuhan, Hubei, China
- * E-mail: (SK); (YH)
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