genetic diversity of phytophthora sojae in iran
نویسندگان
چکیده
objective: the aim of this study was to estimate genetic variability and phonetic relationships of 50 isolates of p. sojae from iran. methods: during 2005–2007, 142 isolates of phytophthora sojae were collected from soil samples and diseased soybean plants from lorestan, mazandaran, golestan and ardabil provinces. races of the isolates were determined. dna of p. sojae fifty isolates was amplified with 20 rapd and 5 issr primers. results: five primers amplified 77 fragments, of which 20 were polymorphic, indicating low variability. rapd and issr primers clustered isolates into three distinct groups at 85% similarity. genetic diversity among isolates detected intra specific variability even among isolates of the same geographic origin. there is no correlation between races, geographical distribution, and molecular markers.
منابع مشابه
Genetic Diversity of Phytophthora Sojae in Iran
Objective: The aim of this study was to estimate genetic variability and phonetic relationships of 50 isolates of P. sojae from Iran. Methods: During 2005–2007, 142 isolates of Phytophthora sojae were collected from soil samples and diseased soybean plants from Lorestan, Mazandaran, Golestan and Ardabil provinces. Races of the isolates were determined. DNA of P. sojae...
متن کاملGenetic Diversity of Phytophthora Sojae in Iran
Objective: The aim of this study was to estimate genetic variability and phonetic relationships of 50 isolates of P. sojae from Iran. Methods: During 2005–2007, 142 isolates of Phytophthora sojae were collected from soil samples and diseased soybean plants from Lorestan, Mazandaran, Golestan and Ardabil provinces. Races of the isolates were determined. DNA of P. sojae...
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Genetic and physical mapping of Avr1a in Phytophthora sojae.
The interaction between soybean and the phytopathogenic oomycete Phytophthora sojae is controlled by host resistance (Rps) genes and pathogen avirulence (Avr) genes. We have mapped the Avr1a locus in F(2) populations derived from four different P. sojae races. Four RAPD and nine AFLP markers linked to Avr1a were initially identified. Nine markers were used to compare genetic linkage maps of the...
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عنوان ژورنال:
international journal of advanced biological and biomedical researchناشر: casrp publishing company
ISSN 2383-2762
دوره 2
شماره 11 2014
کلمات کلیدی
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