Global genotype flow in Cercospora beticola populations confirmed through genotyping-by-sequencing
Genotyping-by-sequencing (GBS) was conducted on 333 Cercospora isolates collected from Beta vulgaris (sugar beet, table beet and swiss chard) in the USA and Europe. Cercospora beticola was confirmed as the species predominantly isolated from leaves with Cercospora leaf spot (CLS) symptoms. However,...
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| description | Genotyping-by-sequencing (GBS) was conducted on 333 Cercospora isolates collected from Beta vulgaris (sugar beet, table beet and swiss chard) in the USA and Europe. Cercospora beticola was confirmed as the species predominantly isolated from leaves with Cercospora leaf spot (CLS) symptoms. However, C. cf. flagellaris also was detected at a frequency of 3% in two table beet fields in New York. Resolution of the spatial structure and identification of clonal lineages in C. beticola populations using genome-wide single nucleotide polymorphisms (SNPs) obtained from GBS was compared to genotyping using microsatellites. Varying distance thresholds (bitwise distance = 0, 1.854599 × 10-4, and 1.298 × 10-3) were used for delineation of clonal lineages in C. beticola populations. Results supported previous reports of long distance dispersal of C. beticola through genotype flow. The GBS-SNP data set provided higher resolution in discriminating clonal lineages; however, genotype identification was impacted by filtering parameters and the distance threshold at which the multi-locus genotypes (MLGs) were contracted to multi-locus lineages. The type of marker or different filtering strategies did not impact estimates of population differentiation and structure. Results emphasize the importance of robust filtering strategies and designation of distance thresholds for delineating clonal lineages in population genomics analyses that depend on individual assignment and identification of clonal lineages. Detection of recurrent clonal lineages shared between the USA and Europe, even in the relaxed-filtered SNP data set and with a conservative distance threshold for contraction of MLGs, provided strong evidence for global genotype flow in C. beticola populations. The implications of intercontinental migration in C. beticola populations for CLS management are discussed. |
| doi_str_mv | 10.1371/journal.pone.0186488 |
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Cercospora beticola was confirmed as the species predominantly isolated from leaves with Cercospora leaf spot (CLS) symptoms. However, C. cf. flagellaris also was detected at a frequency of 3% in two table beet fields in New York. Resolution of the spatial structure and identification of clonal lineages in C. beticola populations using genome-wide single nucleotide polymorphisms (SNPs) obtained from GBS was compared to genotyping using microsatellites. Varying distance thresholds (bitwise distance = 0, 1.854599 × 10-4, and 1.298 × 10-3) were used for delineation of clonal lineages in C. beticola populations. Results supported previous reports of long distance dispersal of C. beticola through genotype flow. The GBS-SNP data set provided higher resolution in discriminating clonal lineages; however, genotype identification was impacted by filtering parameters and the distance threshold at which the multi-locus genotypes (MLGs) were contracted to multi-locus lineages. The type of marker or different filtering strategies did not impact estimates of population differentiation and structure. Results emphasize the importance of robust filtering strategies and designation of distance thresholds for delineating clonal lineages in population genomics analyses that depend on individual assignment and identification of clonal lineages. Detection of recurrent clonal lineages shared between the USA and Europe, even in the relaxed-filtered SNP data set and with a conservative distance threshold for contraction of MLGs, provided strong evidence for global genotype flow in C. beticola populations. The implications of intercontinental migration in C. beticola populations for CLS management are discussed.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0186488</identifier><identifier>PMID: 29065114</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Agriculture ; Ascomycota - genetics ; Beta vulgaris ; Beta vulgaris - microbiology ; Bias ; Biology ; Biology and Life Sciences ; Cloning ; Contraction ; Dispersal ; DNA sequencing ; Epidemiology ; Filtration ; Genetic aspects ; Genetic diversity ; Genomes ; Genomics ; Genotype ; Genotypes ; Genotyping ; Identification ; Leafspot ; Loci ; Microsatellite Repeats - genetics ; Microsatellites ; Migration ; Mutation ; Parameter identification ; Pathogens ; People and places ; Physiological aspects ; Phytopathogenic fungi ; Plant pathology ; Plant sciences ; Polymorphism, Single Nucleotide ; Population differentiation ; Population genetics ; Population statistics ; Research and analysis methods ; Single-nucleotide polymorphism ; Soil sciences ; Spatial discrimination ; Sugar beets ; Swiss chard ; Thresholds</subject><ispartof>PloS one, 2017-10, Vol.12 (10), p.e0186488-e0186488</ispartof><rights>COPYRIGHT 2017 Public Library of Science</rights><rights>This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. 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Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-8ae70ff5f0c8ecbe91d334b2a3d4110d77c0fd73c2cde3b6c9adb856e14fb5ff3</citedby><cites>FETCH-LOGICAL-c692t-8ae70ff5f0c8ecbe91d334b2a3d4110d77c0fd73c2cde3b6c9adb856e14fb5ff3</cites><orcidid>0000-0003-3864-4293</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5655429/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5655429/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29065114$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Chiang, Tzen-Yuh</contributor><creatorcontrib>Vaghefi, Niloofar</creatorcontrib><creatorcontrib>Kikkert, Julie R</creatorcontrib><creatorcontrib>Bolton, Melvin D</creatorcontrib><creatorcontrib>Hanson, Linda E</creatorcontrib><creatorcontrib>Secor, Gary A</creatorcontrib><creatorcontrib>Nelson, Scot C</creatorcontrib><creatorcontrib>Pethybridge, Sarah J</creatorcontrib><title>Global genotype flow in Cercospora beticola populations confirmed through genotyping-by-sequencing</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Genotyping-by-sequencing (GBS) was conducted on 333 Cercospora isolates collected from Beta vulgaris (sugar beet, table beet and swiss chard) in the USA and Europe. Cercospora beticola was confirmed as the species predominantly isolated from leaves with Cercospora leaf spot (CLS) symptoms. However, C. cf. flagellaris also was detected at a frequency of 3% in two table beet fields in New York. Resolution of the spatial structure and identification of clonal lineages in C. beticola populations using genome-wide single nucleotide polymorphisms (SNPs) obtained from GBS was compared to genotyping using microsatellites. Varying distance thresholds (bitwise distance = 0, 1.854599 × 10-4, and 1.298 × 10-3) were used for delineation of clonal lineages in C. beticola populations. Results supported previous reports of long distance dispersal of C. beticola through genotype flow. The GBS-SNP data set provided higher resolution in discriminating clonal lineages; however, genotype identification was impacted by filtering parameters and the distance threshold at which the multi-locus genotypes (MLGs) were contracted to multi-locus lineages. The type of marker or different filtering strategies did not impact estimates of population differentiation and structure. Results emphasize the importance of robust filtering strategies and designation of distance thresholds for delineating clonal lineages in population genomics analyses that depend on individual assignment and identification of clonal lineages. Detection of recurrent clonal lineages shared between the USA and Europe, even in the relaxed-filtered SNP data set and with a conservative distance threshold for contraction of MLGs, provided strong evidence for global genotype flow in C. beticola populations. The implications of intercontinental migration in C. beticola populations for CLS management are discussed.</description><subject>Agriculture</subject><subject>Ascomycota - genetics</subject><subject>Beta vulgaris</subject><subject>Beta vulgaris - microbiology</subject><subject>Bias</subject><subject>Biology</subject><subject>Biology and Life Sciences</subject><subject>Cloning</subject><subject>Contraction</subject><subject>Dispersal</subject><subject>DNA sequencing</subject><subject>Epidemiology</subject><subject>Filtration</subject><subject>Genetic aspects</subject><subject>Genetic diversity</subject><subject>Genomes</subject><subject>Genomics</subject><subject>Genotype</subject><subject>Genotypes</subject><subject>Genotyping</subject><subject>Identification</subject><subject>Leafspot</subject><subject>Loci</subject><subject>Microsatellite Repeats - genetics</subject><subject>Microsatellites</subject><subject>Migration</subject><subject>Mutation</subject><subject>Parameter 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genotype flow in Cercospora beticola populations confirmed through genotyping-by-sequencing</title><author>Vaghefi, Niloofar ; Kikkert, Julie R ; Bolton, Melvin D ; Hanson, Linda E ; Secor, Gary A ; Nelson, Scot C ; Pethybridge, Sarah J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-8ae70ff5f0c8ecbe91d334b2a3d4110d77c0fd73c2cde3b6c9adb856e14fb5ff3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Agriculture</topic><topic>Ascomycota - genetics</topic><topic>Beta vulgaris</topic><topic>Beta vulgaris - microbiology</topic><topic>Bias</topic><topic>Biology</topic><topic>Biology and Life Sciences</topic><topic>Cloning</topic><topic>Contraction</topic><topic>Dispersal</topic><topic>DNA sequencing</topic><topic>Epidemiology</topic><topic>Filtration</topic><topic>Genetic aspects</topic><topic>Genetic 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(sugar beet, table beet and swiss chard) in the USA and Europe. Cercospora beticola was confirmed as the species predominantly isolated from leaves with Cercospora leaf spot (CLS) symptoms. However, C. cf. flagellaris also was detected at a frequency of 3% in two table beet fields in New York. Resolution of the spatial structure and identification of clonal lineages in C. beticola populations using genome-wide single nucleotide polymorphisms (SNPs) obtained from GBS was compared to genotyping using microsatellites. Varying distance thresholds (bitwise distance = 0, 1.854599 × 10-4, and 1.298 × 10-3) were used for delineation of clonal lineages in C. beticola populations. Results supported previous reports of long distance dispersal of C. beticola through genotype flow. The GBS-SNP data set provided higher resolution in discriminating clonal lineages; however, genotype identification was impacted by filtering parameters and the distance threshold at which the multi-locus genotypes (MLGs) were contracted to multi-locus lineages. The type of marker or different filtering strategies did not impact estimates of population differentiation and structure. Results emphasize the importance of robust filtering strategies and designation of distance thresholds for delineating clonal lineages in population genomics analyses that depend on individual assignment and identification of clonal lineages. Detection of recurrent clonal lineages shared between the USA and Europe, even in the relaxed-filtered SNP data set and with a conservative distance threshold for contraction of MLGs, provided strong evidence for global genotype flow in C. beticola populations. The implications of intercontinental migration in C. beticola populations for CLS management are discussed.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>29065114</pmid><doi>10.1371/journal.pone.0186488</doi><tpages>e0186488</tpages><orcidid>https://orcid.org/0000-0003-3864-4293</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Agriculture Ascomycota - genetics Beta vulgaris Beta vulgaris - microbiology Bias Biology Biology and Life Sciences Cloning Contraction Dispersal DNA sequencing Epidemiology Filtration Genetic aspects Genetic diversity Genomes Genomics Genotype Genotypes Genotyping Identification Leafspot Loci Microsatellite Repeats - genetics Microsatellites Migration Mutation Parameter identification Pathogens People and places Physiological aspects Phytopathogenic fungi Plant pathology Plant sciences Polymorphism, Single Nucleotide Population differentiation Population genetics Population statistics Research and analysis methods Single-nucleotide polymorphism Soil sciences Spatial discrimination Sugar beets Swiss chard Thresholds |
| title | Global genotype flow in Cercospora beticola populations confirmed through genotyping-by-sequencing |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T08%3A14%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Global%20genotype%20flow%20in%20Cercospora%20beticola%20populations%20confirmed%20through%20genotyping-by-sequencing&rft.jtitle=PloS%20one&rft.au=Vaghefi,%20Niloofar&rft.date=2017-10-24&rft.volume=12&rft.issue=10&rft.spage=e0186488&rft.epage=e0186488&rft.pages=e0186488-e0186488&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0186488&rft_dat=%3Cgale_plos_%3EA511222434%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1955021635&rft_id=info:pmid/29065114&rft_galeid=A511222434&rft_doaj_id=oai_doaj_org_article_170bb93029314ffeb84e51a5e3052050&rfr_iscdi=true |