Molecular genetic variation and geographical structuring in Fusarium graminearum
Summary Inter‐simple sequence repeat markers were employed to study the genetic structure of Fusarium graminearum populations collected from three Canadian provinces. Our study suggested high genetic diversity and frequent gene flow among population samples analysed. The analysis of molecular varian...
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Published in | Annals of applied biology Vol. 145; no. 3; pp. 299 - 307 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Oxford, UK
Blackwell Publishing Ltd
01.12.2004
Blackwell |
Subjects | |
Online Access | Get full text |
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Summary: | Summary
Inter‐simple sequence repeat markers were employed to study the genetic structure of Fusarium graminearum populations collected from three Canadian provinces. Our study suggested high genetic diversity and frequent gene flow among population samples analysed. The analysis of molecular variance indicated that most of the gene diversity (91.78% to 97.23%) was distributed within populations. Frequent gene flow among the western prairie provinces and cluster analysis results indicated that the population sample from Alberta was closer to Saskatchewan than Manitoba, which could be the result of movement of the pathogen via infected grain or through wind‐borne ascospore dispersal. Analysis of multilocus associations showed that all populations were in linkage equilibrium, indicating that sexual recombination is a frequent phenomenon in F. graminearum populations from western Canada. |
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Bibliography: | ark:/67375/WNG-0CLD0VL9-J istex:7D71688DE18E8A90A85A6AF6172CF1A5446DC0B5 ArticleID:AAB299 5735 Hitchner Hall, Department of Biological Sciences, University of Maine, Orono, ME, 04469–5735, USA ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0003-4746 1744-7348 |
DOI: | 10.1111/j.1744-7348.2004.tb00387.x |