Identification of a specific SCAR marker for detection of Tilletia foetida (Wall) Liro pathogen of wheat

Identification of a specific SCAR marker for detection of Tilletia foetida (Wall) Liro pathogen... Common bunt is one of the most important destructive diseases of wheat worldwide and is a domestic quarantined disease in China. However, a rapid and efficient method to identify the corresponding pathogens is currently limited. The objective of the present study was to develop a diagnostic molecular marker specific towards Tilletia foetida (Wall) Liro, a causal agent of the bunt disease. One specific DNA fragment for T. foetida (286 bp in length) was amplified using an Amplified Fragment Length Polymorphism (AFLP) assay and, this fragment was cloned and sequenced. One pair of specific primers (SC286-1/SC286-2), which was designed according to the sequence, could specifically amplify the corresponding fragment in all of the T. foetida isolates employed from both the People’s Republic of China and United States, whereas this fragment could not be amplified by the other fungal species tested. Therefore, a specific Sequence Characterized Amplified Region (SCAR) marker was developed. This SCAR marker could distinguish T. foetida from related pathogenic fungi efficiently and could be used for the early diagnosis of the common bunt of wheat in the field, and provide an efficient way for disease surveillance and disease forecasting in cereal crop. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Identification of a specific SCAR marker for detection of Tilletia foetida (Wall) Liro pathogen of wheat

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795412050237
Publisher site
See Article on Publisher Site

Abstract

Common bunt is one of the most important destructive diseases of wheat worldwide and is a domestic quarantined disease in China. However, a rapid and efficient method to identify the corresponding pathogens is currently limited. The objective of the present study was to develop a diagnostic molecular marker specific towards Tilletia foetida (Wall) Liro, a causal agent of the bunt disease. One specific DNA fragment for T. foetida (286 bp in length) was amplified using an Amplified Fragment Length Polymorphism (AFLP) assay and, this fragment was cloned and sequenced. One pair of specific primers (SC286-1/SC286-2), which was designed according to the sequence, could specifically amplify the corresponding fragment in all of the T. foetida isolates employed from both the People’s Republic of China and United States, whereas this fragment could not be amplified by the other fungal species tested. Therefore, a specific Sequence Characterized Amplified Region (SCAR) marker was developed. This SCAR marker could distinguish T. foetida from related pathogenic fungi efficiently and could be used for the early diagnosis of the common bunt of wheat in the field, and provide an efficient way for disease surveillance and disease forecasting in cereal crop.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jun 14, 2012

References

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