نوع مقاله : مقاله کامل پژوهشی
نویسندگان
1 گروه گیاهپزشکی دانشکده کشاورزی دانشگاه جیرفت، جیرفت، ایران
2 بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی هرمزگان، سازمان تحقیقات، آموزش و ترویج کشاورزی، بندرعباس، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The present study aimed to evaluate the resistance of 14 common tomato cultivars in the south of Kerman province and Hormozgan province, including Afra, Badro, Basimo, Bernetta, Brivio, Canyon, Comodoro, Elisa, Golsar, Karun, Matin, Sunseed 6189, 4129 and 8320 at the stage of four true-leaves against Fusarium oxysporum f. sp. radicis-lycopersici, under greenhouse conditions and to study the presence or absence of frl resistance gene in the tomato cultivars based on the SCARFrl marker. Based on the results of comparison of the disease index, morphological characteristics including root length, shoot height, root fresh and dry weight, shoot fresh weight and total fresh weight as well as frl gene amplification using SCARFrl-F/SCARFrl-R primers, Canyon, Comodoro, Karun and 4129 were recognized as the most resistant and Bernetta, Elisa, Golsar and Matin were recognized as the most sensitive cultivars to FORL UJFCC1919. Other cultivars including Afra, Badro, Basimo, Brivio, Sunseed 6189 and 8320 showed different degrees of sensitivity to this pathogen. Using SCARFrl-F/SCARFrl-R primers, a 1000 bp fragment was amplified in the cultivars Canyon, Comodoro, Karun and 4129 which indicates the presence of frl gene with dominant homozygous (RR) alleles. Using this primer, a 950 bp fragment was amplified in Bernetta, Elisa, Golsar, Matin and 8320 cultivars, which indicates the absence of the frl gene and the presence of homozygous recessive (rr) alleles. In addition, in Afra, Badro, Basimo, Brivio and Sunseed 6189 cultivars, two 900-1000 bp fragments were amplified, which indicates the existence of heterozygous (Rr) alleles in these cultivars.
کلیدواژهها [English]