Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea
The basidiomycete Ustilago scitaminea Sydow, which causes sugarcane smut disease, has been spreading throughout Africa and America since the 1940s. The genetic diversity and structure of different populations of this fungus worldwide was investigated using microsatellites. A total of 142 single-teliospore were isolated from 77 distinct whips (sori) collected in 15 countries worldwide. Mycelium culture derived from on generation of selfing of these single teliospores were analysed for their polymorphisms at 17 microsatellite loci. All these strains but one were homozygous at all loci, indicating that selfing is likely the predominant reproductive mode of U. scitaminea. The genetic diversity of either American or African U. scitaminea populations was found to be extremely low and all strains belong to a single lineage. This lineage was also found in some populations of Asia, where most U. scitaminea genetic diversity was detected, suggesting that this fungal species originated from this region. The strong founder effect observed in U. scitaminea African and American populations suggests that the fungus migrated from Asia to other continents on rare occasions through movement of infected plant material. © 2006 Elsevier Inc. All rights reserved.
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dig-cirad-fr-5363512024-06-27T16:02:08Z http://agritrop.cirad.fr/536351/ http://agritrop.cirad.fr/536351/ Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea. Raboin Louis-Marie, Selvi Athiappan, Oliveira Karine Miranda, Paulet Florence, Calatayud Caroline, Zapater Marie-Françoise, Brottier Philippe, Luzaran Rosalyn, Garsmeur Olivier, Carlier Jean, D'Hont Angélique. 2007. Fungal Genetics and Biology, 44 (1) : 64-76.https://doi.org/10.1016/j.fgb.2006.07.004 <https://doi.org/10.1016/j.fgb.2006.07.004> Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea Raboin, Louis-Marie Selvi, Athiappan Oliveira, Karine Miranda Paulet, Florence Calatayud, Caroline Zapater, Marie-Françoise Brottier, Philippe Luzaran, Rosalyn Garsmeur, Olivier Carlier, Jean D'Hont, Angélique eng 2007 Fungal Genetics and Biology H20 - Maladies des plantes Ustilago scitaminea Saccharum officinarum microsatellite variation génétique génétique des populations descendance outbreeding autofécondation forcée structure de la population lignée http://aims.fao.org/aos/agrovoc/c_27411 http://aims.fao.org/aos/agrovoc/c_6727 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_16007 http://aims.fao.org/aos/agrovoc/c_6959 http://aims.fao.org/aos/agrovoc/c_6115 http://aims.fao.org/aos/agrovoc/c_29225 Afrique Amériques Asie http://aims.fao.org/aos/agrovoc/c_165 http://aims.fao.org/aos/agrovoc/c_335 http://aims.fao.org/aos/agrovoc/c_666 The basidiomycete Ustilago scitaminea Sydow, which causes sugarcane smut disease, has been spreading throughout Africa and America since the 1940s. The genetic diversity and structure of different populations of this fungus worldwide was investigated using microsatellites. A total of 142 single-teliospore were isolated from 77 distinct whips (sori) collected in 15 countries worldwide. Mycelium culture derived from on generation of selfing of these single teliospores were analysed for their polymorphisms at 17 microsatellite loci. All these strains but one were homozygous at all loci, indicating that selfing is likely the predominant reproductive mode of U. scitaminea. The genetic diversity of either American or African U. scitaminea populations was found to be extremely low and all strains belong to a single lineage. This lineage was also found in some populations of Asia, where most U. scitaminea genetic diversity was detected, suggesting that this fungal species originated from this region. The strong founder effect observed in U. scitaminea African and American populations suggests that the fungus migrated from Asia to other continents on rare occasions through movement of infected plant material. © 2006 Elsevier Inc. All rights reserved. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/536351/1/document_536351.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.fgb.2006.07.004 10.1016/j.fgb.2006.07.004 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fgb.2006.07.004 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.fgb.2006.07.004 |
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H20 - Maladies des plantes Ustilago scitaminea Saccharum officinarum microsatellite variation génétique génétique des populations descendance outbreeding autofécondation forcée structure de la population lignée http://aims.fao.org/aos/agrovoc/c_27411 http://aims.fao.org/aos/agrovoc/c_6727 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_16007 http://aims.fao.org/aos/agrovoc/c_6959 http://aims.fao.org/aos/agrovoc/c_6115 http://aims.fao.org/aos/agrovoc/c_29225 http://aims.fao.org/aos/agrovoc/c_165 http://aims.fao.org/aos/agrovoc/c_335 http://aims.fao.org/aos/agrovoc/c_666 H20 - Maladies des plantes Ustilago scitaminea Saccharum officinarum microsatellite variation génétique génétique des populations descendance outbreeding autofécondation forcée structure de la population lignée http://aims.fao.org/aos/agrovoc/c_27411 http://aims.fao.org/aos/agrovoc/c_6727 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_16007 http://aims.fao.org/aos/agrovoc/c_6959 http://aims.fao.org/aos/agrovoc/c_6115 http://aims.fao.org/aos/agrovoc/c_29225 http://aims.fao.org/aos/agrovoc/c_165 http://aims.fao.org/aos/agrovoc/c_335 http://aims.fao.org/aos/agrovoc/c_666 |
spellingShingle |
H20 - Maladies des plantes Ustilago scitaminea Saccharum officinarum microsatellite variation génétique génétique des populations descendance outbreeding autofécondation forcée structure de la population lignée http://aims.fao.org/aos/agrovoc/c_27411 http://aims.fao.org/aos/agrovoc/c_6727 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_16007 http://aims.fao.org/aos/agrovoc/c_6959 http://aims.fao.org/aos/agrovoc/c_6115 http://aims.fao.org/aos/agrovoc/c_29225 http://aims.fao.org/aos/agrovoc/c_165 http://aims.fao.org/aos/agrovoc/c_335 http://aims.fao.org/aos/agrovoc/c_666 H20 - Maladies des plantes Ustilago scitaminea Saccharum officinarum microsatellite variation génétique génétique des populations descendance outbreeding autofécondation forcée structure de la population lignée http://aims.fao.org/aos/agrovoc/c_27411 http://aims.fao.org/aos/agrovoc/c_6727 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_16007 http://aims.fao.org/aos/agrovoc/c_6959 http://aims.fao.org/aos/agrovoc/c_6115 http://aims.fao.org/aos/agrovoc/c_29225 http://aims.fao.org/aos/agrovoc/c_165 http://aims.fao.org/aos/agrovoc/c_335 http://aims.fao.org/aos/agrovoc/c_666 Raboin, Louis-Marie Selvi, Athiappan Oliveira, Karine Miranda Paulet, Florence Calatayud, Caroline Zapater, Marie-Françoise Brottier, Philippe Luzaran, Rosalyn Garsmeur, Olivier Carlier, Jean D'Hont, Angélique Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea |
description |
The basidiomycete Ustilago scitaminea Sydow, which causes sugarcane smut disease, has been spreading throughout Africa and America since the 1940s. The genetic diversity and structure of different populations of this fungus worldwide was investigated using microsatellites. A total of 142 single-teliospore were isolated from 77 distinct whips (sori) collected in 15 countries worldwide. Mycelium culture derived from on generation of selfing of these single teliospores were analysed for their polymorphisms at 17 microsatellite loci. All these strains but one were homozygous at all loci, indicating that selfing is likely the predominant reproductive mode of U. scitaminea. The genetic diversity of either American or African U. scitaminea populations was found to be extremely low and all strains belong to a single lineage. This lineage was also found in some populations of Asia, where most U. scitaminea genetic diversity was detected, suggesting that this fungal species originated from this region. The strong founder effect observed in U. scitaminea African and American populations suggests that the fungus migrated from Asia to other continents on rare occasions through movement of infected plant material. © 2006 Elsevier Inc. All rights reserved. |
format |
article |
topic_facet |
H20 - Maladies des plantes Ustilago scitaminea Saccharum officinarum microsatellite variation génétique génétique des populations descendance outbreeding autofécondation forcée structure de la population lignée http://aims.fao.org/aos/agrovoc/c_27411 http://aims.fao.org/aos/agrovoc/c_6727 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_16007 http://aims.fao.org/aos/agrovoc/c_6959 http://aims.fao.org/aos/agrovoc/c_6115 http://aims.fao.org/aos/agrovoc/c_29225 http://aims.fao.org/aos/agrovoc/c_165 http://aims.fao.org/aos/agrovoc/c_335 http://aims.fao.org/aos/agrovoc/c_666 |
author |
Raboin, Louis-Marie Selvi, Athiappan Oliveira, Karine Miranda Paulet, Florence Calatayud, Caroline Zapater, Marie-Françoise Brottier, Philippe Luzaran, Rosalyn Garsmeur, Olivier Carlier, Jean D'Hont, Angélique |
author_facet |
Raboin, Louis-Marie Selvi, Athiappan Oliveira, Karine Miranda Paulet, Florence Calatayud, Caroline Zapater, Marie-Françoise Brottier, Philippe Luzaran, Rosalyn Garsmeur, Olivier Carlier, Jean D'Hont, Angélique |
author_sort |
Raboin, Louis-Marie |
title |
Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea |
title_short |
Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea |
title_full |
Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea |
title_fullStr |
Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea |
title_full_unstemmed |
Evidence for the dispersal of a unique lineage from Asia to America and Africa in the sugarcane fungal pathogen Ustilago scitaminea |
title_sort |
evidence for the dispersal of a unique lineage from asia to america and africa in the sugarcane fungal pathogen ustilago scitaminea |
url |
http://agritrop.cirad.fr/536351/ http://agritrop.cirad.fr/536351/1/document_536351.pdf |
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