2019
DOI: 10.1094/phyto-02-19-0050-a
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Whole Genome Sequences of the Tea Leaf Spot Pathogen Didymella segeticola

Abstract: The fungal pathogen Didymella segeticola (basionym Phoma segeticola) causes leaf spot on tea (Camellia sinensis), which leads to a loss in tea leaf production in Guizhou Province, China. D. segeticola isolate GZSQ-4 was sequenced using Illumina HiSeq and Pacific Biosciences (PacBio) RS technologies, and then assembled to approximately 33.4 Mbp with a scaffold N50 value of approximately 2.3 Mbp. In total, 10,893 genes were predicted using the Nonredundant, Gene Ontology, Clusters of Orthologous Groups, Kyoto En… Show more

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Cited by 25 publications
(10 citation statements)
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“…The scaffold N/L 50 of the D. glomerata Pj-2 genome is 11/1,359,674 bp, which is far superior than the other two genome assemblies of D. glomerata strains CBS 528.66 (177 scaffolds; N/L 50 = 7/635,919 bp) and M27-16 (946 scaffolds; N/L 50 = 26/469,072 bp). In addition, the Pj-2 genome assembly is either comparable or better than that of other sequenced Didymella species: D. keratinophila 9M1 (577 scaffolds; N/L 50 = 76/141,571 bp), D. heteroderae 28M1 (620 scaffolds; N/L 50 = 38/283,873 bp), D. pinodes WTN-11-157 (1,593 scaffolds; N/L 50 = 91/106,671 bp), D. lethalis GRM-16-623 (512 scaffolds; N/L50 = 50/196,696), D. arachidicola YY187 (25 scaffolds; N/L 50 = 8/2,070,310 bp) ( Li et al., 2021 ); D. exigua CBS 183.55 (176 scaffolds; N/L 50 = 64/145,421 bp), D. rabiei ArMe14 (34 scaffolds; N/L 50 = 9/1,812,190) ( Shah et al., 2020 ) and D. segeticola GZSQ-4 (23 scaffolds; N/L 50 = 6/2,254,797) ( Ren et al., 2019 ).…”
Section: Resultsmentioning
confidence: 99%
“…The scaffold N/L 50 of the D. glomerata Pj-2 genome is 11/1,359,674 bp, which is far superior than the other two genome assemblies of D. glomerata strains CBS 528.66 (177 scaffolds; N/L 50 = 7/635,919 bp) and M27-16 (946 scaffolds; N/L 50 = 26/469,072 bp). In addition, the Pj-2 genome assembly is either comparable or better than that of other sequenced Didymella species: D. keratinophila 9M1 (577 scaffolds; N/L 50 = 76/141,571 bp), D. heteroderae 28M1 (620 scaffolds; N/L 50 = 38/283,873 bp), D. pinodes WTN-11-157 (1,593 scaffolds; N/L 50 = 91/106,671 bp), D. lethalis GRM-16-623 (512 scaffolds; N/L50 = 50/196,696), D. arachidicola YY187 (25 scaffolds; N/L 50 = 8/2,070,310 bp) ( Li et al., 2021 ); D. exigua CBS 183.55 (176 scaffolds; N/L 50 = 64/145,421 bp), D. rabiei ArMe14 (34 scaffolds; N/L 50 = 9/1,812,190) ( Shah et al., 2020 ) and D. segeticola GZSQ-4 (23 scaffolds; N/L 50 = 6/2,254,797) ( Ren et al., 2019 ).…”
Section: Resultsmentioning
confidence: 99%
“…In this study, Epicoccum, a widespread pathogen ( Chen et al, 2017 ; Zhou et al, 2018 ; Lin and Hand, 2019 ), was isolated from both A. adenophora and native plants ( Figure 2 ) and most of the isolates were found to be strongly virulent against A. adenophora as well as a variety of native plants ( Figure 3 ). Similarly, isolates of Didymella , a common plant pathogen of crops ( Huang et al, 2018 ; Moral et al, 2018 ; Ren et al, 2019 ), were more virulent toward native plants than to A. adenophora ( Figure 2 ). Because A. adenophora is now widely distributed worldwide ( Wang and Wang, 2006 ), these generalists pose a high risk of disease transmission in invaded ecosystems.…”
Section: Discussionmentioning
confidence: 95%
“…Even though a number of studies have been conducted on identification of fungal pathogens on tea, only a few detailed studies have been done on fungal pathogen genomics on tea. Metagenomics have many advantages on pathogen evolution, host–pathogen interactions, determination of trait-specific genes and plant–host adaptation mechanisms ( Li et al., 2016 ; Ren et al., 2019 ). Ultimately, understanding the roles of pathogens in crop production systems might even enhance food security ( Gregory et al., 2009 ).…”
Section: Discussionmentioning
confidence: 99%