气候变化领域集成服务门户(CCPortal): Virulence and Genetic Types of Blumeria graminis f. sp. hordei in Tibet and Surrounding Areas

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DOI	10.3390/jof9030363
	Virulence and Genetic Types of Blumeria graminis f. sp. hordei in Tibet and Surrounding Areas
	Wang, Yunjing; Zhuoma, Qucuo; Xu, Zhi; Peng, Yunliang; Wang, Mu
发表日期	2023
EISSN	2309-608X
卷号	9 期号:3
英文摘要	Barley (Hordeum vulgare L.) is the most important cereal crop in the Qinghai-Tibet Plateau, and the yield has been seriously threatened by Blumeria graminis f. sp. hordei (Bgh) in recent years. To understand the virulence and genetic traits of different Bgh populations, 229 isolates of Bgh were collected from Tibet, Sichuan, Gansu and Yunnan provinces of China during 2020 and 2021, and their pathogenicity to 21 barley lines of different genotypes was assessed. A total of 132 virulent types were identified. The Bgh isolates from Yunnan showed the highest diversity in terms of virulence complexity (Rci) and genetic diversity (KWm), followed by those from Sichuan, Gansu, and Tibet, in that order. Single nucleotide polymorphism (SNP) in genes coding for alternative oxidase (AOX), protein kinase A (PKA), and protein phosphatase type 2A (PPA) were detected at seven polymorphic sites. Nine haplotypes (H1-H9) with an average haplotype diversity (Hd) and nucleotide diversity pi of 0.564 and 0.00034, respectively, were observed. Of these, haplotypes H1 and H4 accounted for 88.8% of the isolates, and H4 was predominant in Tibet. Genetic diversity analysis using the STRUCTURE (K = 2) and AMOVE indicated that the inter-group variation accounted for 54.68%, and inter- and intra-population genotypic heterogeneity accounted for 23.90% and 21.42%, respectively. The results revealed the recent expansion of the Bgh population in Tibet, accompanied by an increase in virulence and a loss of genetic diversity.
关键词	barley powdery mildew differential lines SNP population expansion
英文关键词	POWDERY MILDEW RESISTANCE; ERYSIPHE-GRAMINIS; POPULATIONS; DIVERSITY; PATHOGEN
WOS研究方向	Microbiology ; Mycology
WOS记录号	WOS:000958585400001
来源期刊	JOURNAL OF FUNGI
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282608
作者单位	Tibet Agriculture & Animal Husbandry University; Sichuan Academy of Agricultural Sciences (SAAS)
推荐引用方式 GB/T 7714	Wang, Yunjing,Zhuoma, Qucuo,Xu, Zhi,et al. Virulence and Genetic Types of Blumeria graminis f. sp. hordei in Tibet and Surrounding Areas[J],2023,9(3).
APA	Wang, Yunjing,Zhuoma, Qucuo,Xu, Zhi,Peng, Yunliang,&Wang, Mu.(2023).Virulence and Genetic Types of Blumeria graminis f. sp. hordei in Tibet and Surrounding Areas.JOURNAL OF FUNGI,9(3).
MLA	Wang, Yunjing,et al."Virulence and Genetic Types of Blumeria graminis f. sp. hordei in Tibet and Surrounding Areas".JOURNAL OF FUNGI 9.3(2023).