Genetic Diversity and Population Structure of Bursaphelenchus xylophilus in Guangdong, Guangxi, and Jiangsu Provinces in China

This study aimed to investigate the genetic structures of pine wood nematodes (PWNs, Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle)), in Guangdong (GD), Guangxi (GX), and Jiangsu (JS) Provinces (the major PWN dispersal centers). Furthermore, we also explored potential migration routes amo...

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Published inForests Vol. 15; no. 6; p. 934
Main Authors Feng, Yuan, Jian, Wenjing, Ding, Xiaolei, Ye, Jianren
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.06.2024
Subjects
Bioinformatics
Biological diversity
Bursaphelenchus xylophilus
China
Dispersal
Epidemics
Forestry
Genes
Genetic analysis
Genetic diversity
Genetic testing
Genomes
Genomic analysis
Genomics
Interspecific hybridization
Japan
Nematodes
Next-generation sequencing
Nonnative species
Pathogens
Pectin
Pectin lyase
Phylogenetics
pine wood nematode
population differentiation
Population genetics
Population structure
Population studies
Portugal
Provinces
selective sweeps
Single-nucleotide polymorphism
SNP
Software
Portugal
Japan
China
United States > US
Guangdong China
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Summary:This study aimed to investigate the genetic structures of pine wood nematodes (PWNs, Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle)), in Guangdong (GD), Guangxi (GX), and Jiangsu (JS) Provinces (the major PWN dispersal centers). Furthermore, we also explored potential migration routes among the different provinces in order to provide insights into the epidemic source of PWNs in the three provinces in China. We re-sequenced a total of 241 PWNs collected from the above provinces using next-generation sequencing to obtain raw genomic data. Bioinformatics analysis was used to identify the SNPs, genetic structures, and selective sweeps of the PWNs. The results indicate that the PWNs from these three provinces can be classified into five groups (A, B, C, D, and E), among which the genetic variations are significant. All PWN strains from JS were exclusively found in Group A. The PWNs in Groups B and C were composed of strains from GD and GX, while Groups D and E comprised only GD strains. Introgression analysis identified two possible pathways: (1) from Group A to Group B-GX and (2) from Group E to Group D. Selective sweep analysis showed that in Groups B and C, the candidate genes of Group B were mainly related to pectin lyase activity.
ISSN:1999-4907
1999-4907
DOI:10.3390/f15060934