Pathogen Identification of Fusarium Crown Root Rot and Screening for Resistant Sources in Tomato

doi:10.16420/j.issn.0513-353x.2015-0891

ACTA HORTICULTURAE SINICA ›› 2016, Vol. 43 ›› Issue (4): 781-788.doi: 10.16420/j.issn.0513-353x.2015-0891

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Pathogen Identification of Fusarium Crown Root Rot and Screening for Resistant Sources in Tomato

CHENG Lin1,*，ZHANG Sheng1,*，LI Yan-qing2，CHEN Fu-dong1，CHENG Fei3，ZHANG Xiao-yan1，DONG Tian1，and GUO Jia-jin1,**

（1Shandong Provincial Key Laboratory of Protected Vegetable Molecular Breeding，Weifang Enterprise Key Laboratory of Vegetable Molecular Breeding，Shandong Shouguang Vegetable Seed Industry Group Co. Ltd，Shandong Shouguang Vegetable Industry Group Co. Ltd，Shouguang，Shandong 262700，China；2Weifang University of Science & Technology，Shouguang，Shandong 262700，China；3Qingdao Agricultural University，Qingdao，Shandong 266000，China）

Online:2016-04-25 Published:2016-04-25

Abstract

Abstract: The typical Fusarium crown root rot（FCRR）infected tomato plants were collected in growers’ greenhouse in Shouguang，Shandong Province in 2014. The pathogen was isolated and catagaried according to the morphology and the sequence of internal transcribed spacer region of the ribosomal DNA（ITS）. The result showed that the pathogen of the disease was identified as Fusarium oxysporum f. sp. radicis-lycopersici. The cleaved amplified polymorphic sequence（CAPS）marker C2-25 for FCRR resistance gene Frl，which was derived from Solanum peruvianum，were tested in 25 germplasms without typical FCRR symptom，in which 19 homozygous，2 heterozygous resistants and 4 homozygous susceptible plants were found. Moreover，molecular marker test showed good agreement with the artificial pathogen inoculation results.

Key words: tomato, Fusarium crown and root rot, pathogen identification, Frl, molecular marker

CLC Number:

S 641.2

CHENG Lin1,*，ZHANG Sheng1,*，LI Yan-qing2，CHEN Fu-dong1，CHENG Fei3，ZHANG Xiao-yan1，DONG Tian1，and GUO Jia-jin1,**. Pathogen Identification of Fusarium Crown Root Rot and Screening for Resistant Sources in Tomato[J]. ACTA HORTICULTURAE SINICA, 2016, 43(4): 781-788.

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Pathogen Identification of Fusarium Crown Root Rot and Screening for Resistant Sources in Tomato

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