این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Crop Breeding Journal، جلد ۹، شماره ۲، صفحات ۲۳-۳۱
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Virulence analysis and effectiveness of new sources of resistance to barley powdery mildew (Blumeria graminis f. sp. hordei) in southwestern regions of Iran
چکیده انگلیسی مقاله Barley powdery mildew caused by the biotrophic obligate pathogen, Blumeria graminis f. sp. hordei, is one of the most important foliar diseases in major barley production areas in Iran. To determine the virulence spectrum of the powdery mildew pathogen in southwestern regions of the country and effectiveness of new sources of resistance, barley powdery mildew trap nurseries were established and evaluated under natural field conditions for disease development in three disease prone locations including Zarghan, Ahvaz, and Dezful during 2013-14 to 2017-18 cropping seasons. The trap nurseries consisted of a differential set including the barley cultivar Pallas and 18 near-isogenic ‘Pallas’ lines and a supplementary set including 34 barley cultivars carrying known or unknown resistance gene(s). Our results showed that there is virulence variation in the population of the pathogen in different locations. While the resistance genes Mla6, Mla14, Mla7, Ml(No3), Mla12, Ml(Em2), Mla13 and Ml(Ru3) were effective across the years and locations, the Mlk, Mlh, MlLa and Mlp genes were ineffective in most years and locations. New virulence factors matching Mla6, Mlp, Mlg+MlCP, Mla7 and Mla3 genes were detected. Ineffectiveness of all resistance genes except the recessive mlo allele in Dezful and Zarghan over years indicating that the pathogen population in Dezful and Zarghan are more aggressive than Ahvaz. We concluded that the European mlo carrying barley cultivars and other sources of resistance with a combination of genes, such as Meltan and Escort could be considered as effective sources of powdery mildew resistance to be incorporated in the national barley breeding programs for the southwestern regions of Iran.
کلیدواژه‌های انگلیسی مقاله Barley, disease resistance, Genetic variation, isogenic lines, pathogenicity factors
نویسندگان مقاله Reza Aghnoum |
Field and Horticultural Crops Research Department, Khorasan-e-Razavi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Mashhad, Iran.

Mohsen Yassaie |
Field and Horticultural Crops Research Department, Fars Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Shiraz, Iran.

Mohammad Dalvand |
Field and Horticultural Crops Research Department, Safiabad Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Dezful, Iran.

Nosratollah Tabatabaei Fard |
Field and Horticultural Crops Research Department, Khuzestan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Ahvaz, Iran.

نشانی اینترنتی https://cbjournal.areeo.ac.ir/article_122577_197a4a01fe6efbe01872f6e5bf7e3174.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات