THE ROLE OF RDNA IGS1 IN STUDING OF GENETIC VARIABILITY OF YELLOW RUST DISEASE AGENT, PUCCINIA STRIIFORMIS F.SP. TRITICI

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RABANINASAB H.A.; OKHOVAT M.; ABBASI MEHRDAD; TORABI MOHAMMAD; MOZAFARI J.

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Journal: Iranian Plant Protection Research Year:2008 | Volume:22 | Issue:1 Page(s): 61-70

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Title

THE ROLE OF RDNA IGS1 IN STUDING OF GENETIC VARIABILITY OF YELLOW RUST DISEASE AGENT, PUCCINIA STRIIFORMIS F.SP. TRITICI

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INTERGENIC SPACERQ3

RDNAQ3

PUCCINIA STRIIFORMIS F.SP. TRITICIQ3

Abstract

Sequences of the INTERGENIC SPACER between the 28S and the 5S RDNA genes (IGS 1) were compared for six Puccinia striiformis f. sp. tritici isolates, of different geographic origins, virulence spectra and AFLP groups. Two PCR products (IGS 1A and IGS 1B, of 1.3 and 1.1 kb, respectively) were recovered from all spore multiplications. The analysis of IGS 1A or IGS 1B showed that a low mutational polymorphism existed among the six isolates (from 0 to 1.5%). The comparison of IGS 1A and IGS 1B to each other showed that the polymorphism between the two types of IGS was due to a length polymorphism consisting of about 200 bp insertion/deletion located in the repeated region. Two hypotheses can be proposed to explain the coexistence of two different IGS 1 types within one isolate: either each nucleus of this dikaryotic fungus contains one type of IGS 1 or there are two discrete ribosomal units resulting from recombination in the same nucleus.

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APA: Copy

RABANINASAB, H.A., OKHOVAT, M., ABBASI, MEHRDAD, TORABI, MOHAMMAD, & MOZAFARI, J.. (2008). THE ROLE OF RDNA IGS1 IN STUDING OF GENETIC VARIABILITY OF YELLOW RUST DISEASE AGENT, PUCCINIA STRIIFORMIS F.SP. TRITICI. IRANIAN PLANT PROTECTION RESEARCH (JOURNAL OF PLANT PROTECTION), 22(1), 61-70. SID. https://sid.ir/paper/142796/en

Vancouver: Copy

RABANINASAB H.A., OKHOVAT M., ABBASI MEHRDAD, TORABI MOHAMMAD, MOZAFARI J.. THE ROLE OF RDNA IGS1 IN STUDING OF GENETIC VARIABILITY OF YELLOW RUST DISEASE AGENT, PUCCINIA STRIIFORMIS F.SP. TRITICI. IRANIAN PLANT PROTECTION RESEARCH (JOURNAL OF PLANT PROTECTION)[Internet]. 2008;22(1):61-70. Available from: https://sid.ir/paper/142796/en

IEEE: Copy

H.A. RABANINASAB, M. OKHOVAT, MEHRDAD ABBASI, MOHAMMAD TORABI, and J. MOZAFARI, “THE ROLE OF RDNA IGS1 IN STUDING OF GENETIC VARIABILITY OF YELLOW RUST DISEASE AGENT, PUCCINIA STRIIFORMIS F.SP. TRITICI,” IRANIAN PLANT PROTECTION RESEARCH (JOURNAL OF PLANT PROTECTION), vol. 22, no. 1, pp. 61–70, 2008, [Online]. Available: https://sid.ir/paper/142796/en

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