期刊
FUNGAL GENETICS AND BIOLOGY
卷 45, 期 10, 页码 1340-1347出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.fgb.2008.07.012
关键词
Magnaporthe grisea; Simple sequence repeat (SSR); Molecular marker; Genetic map
资金
- National Natural Science Foundation of China [30671123]
Magnaporthe grisea is the most destructive fungal pathogen of rice and a model organism for studying plant-pathogen interaction. Molecular markers and genetic maps are useful tools for genetic studies. In this study, based on the released genome sequence data of M. grisea, we investigated 446 simple sequence repeat (SSR) loci and developed 313 SSR markers, which showed polymorphisms among nine isolates from rice (including a laboratory strain 2539). The number of alleles of each marker ranged 29 with an average of 3.3. The polymorphic information content (PIC) of each marker ranged 0.20-0.89 with an average of 0.53. Using a population derived from a cross between isolates Guy11 and 2539, we constructed a genetic map of M. grisea consisting of 176 SSR markers. The map covers a total length of 1247 cM, equivalent to a physical length of about 35.0 Mb or 93% of the genome, with an average distance of 7.1 cM between adjacent markers. A web-based database of the SSR markers and the genetic map was established (http://ibi.zju.edu.cn/pgl/MGM/index.html). (c) 2008 Elsevier Inc. All rights reserved.
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