Genetic diversity and population structure of Puccinia striiformis f. sp. tritici reveal its migration from central to eastern China

Wang, Cuicui; Li, Leifu; Jiang, Bingbing; Zhang, Keyu; Chu, Bingyao; Luo, Yong; Ma, Zhanhong

doi:10.1016/j.cropro.2019.104974

Cited by 14 publications

(7 citation statements)

References 35 publications

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“…The amount of Pst in HB in the early spring could influence the occurrence of wheat stripe rust in further eastern regions because of transfer by western winds [5,36,37]. Therefore, it was crucial to clearly define the origin source of Pst in HB after over-summering.…”

Section: Discussionmentioning

confidence: 99%

Population Genetic Structures of Puccinia striiformis f. sp. tritici in the Gansu-Ningxia Region and Hubei Province, China

Wang

Jiang

Liang

et al. 2021

Genes

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Wheat stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici (Pst), is a destructive wheat disease in China. The Gansu–Ningxia region (GN) is a key area for pathogen over-summering in China, and northwestern Hubei (HB) is an important region for pathogen over-wintering, serving as a source of inoculum in spring epidemic regions. The spatiotemporal population genetic structure of Pst in HB and the pathogen population exchanges between GN and HB are important for estimating the risk of interregional epidemics. Here, 567 isolates from GN and HB were sampled from fall 2016 to spring 2018 and were genotyped using simple sequence repeat markers. The genotypic and genetic diversity of Pst subpopulations in HB varied among seasons and locations. Greater genetic diversification levels were found in the spring compared with fall populations using principal coordinate analysis and Bayesian assignments. In total, there were 17 common genotypes among the 208 determined, as shown by a small overlap of genotypes in the principal coordinate analysis and dissimilar Bayesian assignments in both regions, which revealed the limited genotype exchange between the populations of GN and HB.

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Section: Discussionmentioning

confidence: 99%

Population Genetic Structures of Puccinia striiformis f. sp. tritici in the Gansu-Ningxia Region and Hubei Province, China

Wang

Jiang

Liang

et al. 2021

Genes

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“…As a distinct epidemiological region of stripe rust, the exact Pst origins and dispersal routes in China remain largely elusive. Recently, much intensive research has been conducted to investigate Pst dispersal patterns in China, but focusing on studying relationships of Pst populations among a few regions with a limited number of molecular markers [26][27][28][40][41][42] . Analyses based on a limited of markers may not provide sufficient resolution to elucidate Pst origins and dispersal routes because of the rapid evolution and large-scale dispersal of Pst 36,37 .…”

Section: Discussionmentioning

confidence: 99%

Whole-genome sequencing, trajectory tracking, and field investigation reveal origin and long-distance migration routes of wheat stripe rust in China

Dai

Zhang

et al. 2022

Preprint

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Understanding the origins and migration routes of phytopathogen inoculum is essential in predicting disease development and formulating control strategies. Puccinia striiformis f. sp. tritici (Pst), the causal agent of wheat stripe rust, is an airborne fungal pathogen threatening wheat production by long-distance migration. Due to large variation in geographic features, climatic conditions, and wheat production systems, inter-regional Pst dispersal routes in China remain largely unknown. In the present research, we sequenced 154 Pst isolates sampled from all the major wheat-growing regions in China to study the Pst population structure. Western Qinling Mountains, Himalayan region, and Guizhou Plateau were found to be centers of Pst origin in China. Combined with trajectory tracking and field disease surveys, long-distance Pst migration routes from individual origins were proposed. The present findings will improve current understanding of Pst origin and migration in China and emphasize the need for managing stripe rust at the national scale.

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“…Previous studies using simple‐sequence repeat (SSR) markers have revealed the migration direction of Pst from central to eastern China, based on the significant decrease in genotype and genetic diversity from Hubei to Shandong (Wang, Li, et al, 2019). The Hubei Pst population, working as a bridge, can provide the inoculum sources of Pst for the winter wheat in the basin of Huang and Huai Rivers and the MLRYR (Huang et al, 2003; Wang, Li, et al, 2019). Pst is a typical airborne fungus.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies using simple-sequence repeat (SSR) markers have revealed the migration direction of Pst from central to eastern China, based on the significant decrease in genotype and genetic diversity from Hubei to Shandong (Wang, Li, et al, 2019).…”

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Analysis of genetic diversity and population structure of Puccinia striiformis f. sp. tritici infers inoculum relationships from Yunnan to the middle and lower reaches of the Yangtze River

et al. 2023

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Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important cereal fungal disease worldwide, including in the major wheat‐producing areas in China. In 2019, there was a widespread epidemic of the disease in the middle and lower reaches of the Yangtze River (MLRYR) area, including Zhejiang, Jiangsu, Anhui and Guangxi. However, in north‐western China, the postulated inoculum source of MLRYR, disease occurred mildly. Therefore, the origin of the Pst inoculum source for the MLRYR epidemic is still an open question. To address it, we collected 210 Pst uredinium samples from the Yangtze River basin and analysed their genetic structure with 13 pairs of simple‐sequence repeat (SSR) markers that we coupled with an upper airflow trajectory analysis. Our results suggest that the autumn inoculum sources of wheat stripe rust in MLRYR in 2019 probably came from south‐western over‐summering areas of Pst through long‐distance migration. We also found that Jingzhou and adjacent areas in Hubei Province function as an important bridge or stopover for inoculum sources.

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Genetic diversity and population structure of Puccinia striiformis f. sp. tritici reveal its migration from central to eastern China

Cited by 14 publications

References 35 publications

Population Genetic Structures of Puccinia striiformis f. sp. tritici in the Gansu-Ningxia Region and Hubei Province, China

Population Genetic Structures of Puccinia striiformis f. sp. tritici in the Gansu-Ningxia Region and Hubei Province, China

Whole-genome sequencing, trajectory tracking, and field investigation reveal origin and long-distance migration routes of wheat stripe rust in China

Analysis of genetic diversity and population structure of Puccinia striiformis f. sp. tritici infers inoculum relationships from Yunnan to the middle and lower reaches of the Yangtze River

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