https://scholars.lib.ntu.edu.tw/handle/123456789/606097
標題: | Genetic differentiation of Xylella fastidiosa following the introduction into Taiwan | 作者: | Castillo A.I CHI-WEI TSAI Su C.-C Weng L.-W Lin Y.-C Cho S.-T Almeida R.P.P Kuo C.-H. |
關鍵字: | Genomic diversity;Grapevines;Introduction event;Pierce’s disease;Taiwan;Xylella fastidiosa;Article;bacterial strain;bacterium isolate;Bayes theorem;bioinformatics;comparative genomics;core genome;DNA extraction;gene frequency;gene sequence;genetic analysis;genetic recombination;genetic variability;genome analysis;haplotype;homologous recombination;illumina sequencing;multilocus sequence typing;mutation rate;nonhuman;phylogeny;pierce disease;plant disease;population structure;sequence alignment;shotgun sequencing;single nucleotide polymorphism;Spain;United States;Vitis;whole genome sequencing;Xylella;Xylella taiwanensis | 公開日期: | 2021 | 卷: | 7 | 期: | 12 | 來源出版物: | Microbial Genomics | 摘要: | The economically important plant pathogen Xylella fastidiosa has been reported in multiple regions of the globe during the last two decades, threatening a growing list of plants. Particularly, X. fastidiosa subspecies fastidiosa causes Pierce’s disease (PD) of grapevines, which is a problem in the USA, Spain, and Taiwan. In this work, we studied PD-causing subsp. fastidiosa populations and compared the genome sequences of 33 isolates found in Central Taiwan with 171 isolates from the USA and two from Spain. Phylogenetic relationships, haplotype networks, and genetic diversity analyses confirmed that subsp. fastidiosa was recently introduced into Taiwan from the Southeast USA (i.e. the PD-I lineage). Recent core-genome recombination events were detected among introduced subsp. fastidiosa isolates in Taiwan and contributed to the development of genetic diversity. The genetic diversity observed includes contributions through recombination from unknown donors, suggesting that higher genetic diversity exists in the region. Nevertheless, no recombination event was detected between X. fastidiosa subsp. fastidiosa and the endemic sister species Xylella taiwanensis, which is the causative agent of pear leaf scorch disease. In summary, this study improved our understanding of the genetic diversity of an important plant pathogenic bacterium after its invasion to a new region. ? 2021 The Authors. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122774805&doi=10.1099%2fMGEN.0.000727&partnerID=40&md5=e7348e21d5eedd172df3d455680b39a0 https://scholars.lib.ntu.edu.tw/handle/123456789/606097 |
ISSN: | 20575858 | DOI: | 10.1099/MGEN.0.000727 |
顯示於: | 昆蟲學系 |
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