Molecular and phenotypic characterization of Chinese wheat (Triticum aestivum) cultivars for resistance to Fusarium head blight

被引：0
|
作者：
Zhang, Genyuan [1 ]
Hu, Runyu [1 ]
Chen, Xiangguo [1 ]
Zhang, Fangfang [1 ]
Li, Yujia [1 ]
Xu, Hao [1 ]
Yu, Shinan [1 ]
Wang, Shan [1 ]
Gao, Yan [1 ]
Li, Qiaoyun [1 ]
Tang, Jianwei [1 ]
Yin, Guihong [1 ]
机构：
[1] Henan Agr Univ, Collaborat Innovat Ctr Henan Grain Crops, Coll Agron, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450046, Peoples R China
来源：
PLANT BREEDING | 2023年 / 142卷 / 01期
关键词：
bread wheat; Fusarium head blight; molecular marker; multiplex PCR; resistance evaluation; resistance QTL; DEOXYNIVALENOL ACCUMULATION; FHB1; QTL; DISEASE; GENES;
D O I：
10.1111/pbr.13055
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
To identify excellent cultivars resistant to Fusarium head blight (FHB), 104 wheat cultivars were tested by single-flower inoculation using two prevalent pathogens from 2018 to 2020. Agronomic traits were also investigated. Six FHB-resistance quantitative trait loci (QTL), Fhb1, Fhb2, Fhb4, Fhb5, Fhb7 and Qfhb.crc-2D, have been assessed using previously reported DNA markers. A diagnostic marker has been used for Fhb1, and indicative markers linked to the other QTL were used. Results showed that (i) 12 (11.5%) cultivars were resistant to two pathogens in 3 years; among them, 'Shengxuan 6', 'Wanhongbian 759', 'Yunong 903' and 'Yunong 901' had good agronomic traits. (ii) Among cultivars with one resistance QTL, the severities of cultivars carrying Fhb1 and Qfhb.crc-2D were 2.2 and 2.8, respectively, whereas those of cultivars with Fhb2 or Fhb7 were 3.6. Among cultivars with two resistance QTL, the severities of cultivars with Fhb1 + Fhb4, Fhb1 + Fhb7 and Fhb4 + Fhb5 were 2.2, 3.0 and 3.6, respectively. The severity of five cultivars possessing three or four resistance QTL was below 2.5. Fhb1 and Qfhb.crc-2D showed better resistance effects than other resistance QTL.
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收藏
页码：30 / 40
页数：11
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