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Characterization of Fusarium Head Blight Resistance Gene Fhb1 and Its Putative Ancestor in Chinese Wheat Germplasm
Zhan-Wang ZHU, Deng-An XU, Shun-He CHENG, Chun-Bao GAO, Xian-Chun XIA, Yuan-Feng HAO, Zhong-Hu HE
Acta Agronomica Sinica    2018, 44 (04): 473-482.   DOI: 10.3724/SP.J.1006.2018.00473
Abstract   (1651 HTML74 PDF(pc) (844KB)(1363)  

Enhancing resistance to Fusarium head blight (FHB) has become one of important breeding objectives in the major wheat-growing regions in China. A prominent locus Fhb1 conferring stable FHB resistance with the largest effect is the major source of resistance in wheat breeding. Understanding the distribution and putative donor of Fhb1 in Chinese wheat cultivars will facilitate the application of this gene and thus benefit FHB resistance breeding in China. Haplotype analysis of PFT (pore-forming toxin-like), HC (HCBT-like defense response protein) and His (histidine-rich calcium-binding protein) genes in the Fhb1 region of 229 wheat cultivars and advanced lines indicated that PFT-I/His-I was a resistant haplotype. Both pedigree and marker (or sequence) information revealed that Fhb1 in Chinese wheat cultivars was mainly derived from Sumai 3 and Ningmai 9, in which Ningmai 9 was the major donor. The Fhb1 diagnostic markers PFT-CAPS and His-InDel developed in this study can be used effectively in marker-assisted selection for improving FHB resistance.


变异来源
Source
自由度
df
平方和
SS
均方
MS
F P
基因型 Genotype 228 485051.53 2127.42 9.34 <0.0001
年份 Year 2 101181.96 50590.98 222.13 <0.0001
基因型×年份 Genotype × year 456 278453.19 610.64 2.68 <0.0001
重复(年份) Replication (year) 3 4285.51 1428.50 6.27 0.0003
Table 2 Analysis of variance (ANOVA) of Fusarium head blight index in 229 wheat cultivars
Extracts from the Article
附表2   73份扬麦和宁麦品种(系) Fhb1检测
表2   229份小麦品种(系)赤霉病病情指数方差分析
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