Identification of Quantitative Trait Loci for Resistance to Southern Leaf Blight and Days to Anthesis in Two Maize Recombinant Inbred Line Populations
The genetic architecture underlying resistance in maize to southern leaf blight (SLB) caused by Cochliobolus heterostrophus race O is not well understood. The objective of this study was to identify loci contributing to SLB resistance in two recombinant inbred line populations and to compare these t...
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| Veröffentlicht in: | Phytopathology 2008-03, Vol.98 (3), p.315-320 |
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| creator | BALINT-KURTI, P. J ZWONITZER, J. C PE, M. E PEA, G LEE, M CARDINAL, A. J |
| description | The genetic architecture underlying resistance in maize to southern leaf blight (SLB) caused by Cochliobolus heterostrophus race O is not well understood. The objective of this study was to identify loci contributing to SLB resistance in two recombinant inbred line populations and to compare these to SLB resistance loci in other populations. The two populations used were derived from crosses between maize inbred lines H99 and B73 (HB population-142 lines) and between B73 and B52 (BB population-186 lines). They were evaluated for SLB resistance and for days from planting to anthesis (DTA) in 2005 and 2006. Two replications arranged as randomized complete blocks were assessed in each year for each population. Entry mean heritabilities for disease resistance were high for both populations (0.876 and 0.761, respectively). Quantitative trait loci (QTL) for SLB resistance were identified in bins 3.04 (two QTL), 6.01, and 8.05 in the HB population and in bin 2.07 in the BB population. No overlap of DTA and SLB resistance QTL was observed, nor was there any phenotypic correlation between the traits. A comparison of the results of all published SLB resistance QTL studies suggested that bins 3.04 and 6.01 are 'hotspots' for SLB resistance QTL. |
| doi_str_mv | 10.1094/PHYTO-98-3-0315 |
| format | Article |
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J ; ZWONITZER, J. C ; PE, M. E ; PEA, G ; LEE, M ; CARDINAL, A. J</creator><creatorcontrib>BALINT-KURTI, P. J ; ZWONITZER, J. C ; PE, M. E ; PEA, G ; LEE, M ; CARDINAL, A. J</creatorcontrib><description>The genetic architecture underlying resistance in maize to southern leaf blight (SLB) caused by Cochliobolus heterostrophus race O is not well understood. The objective of this study was to identify loci contributing to SLB resistance in two recombinant inbred line populations and to compare these to SLB resistance loci in other populations. The two populations used were derived from crosses between maize inbred lines H99 and B73 (HB population-142 lines) and between B73 and B52 (BB population-186 lines). They were evaluated for SLB resistance and for days from planting to anthesis (DTA) in 2005 and 2006. Two replications arranged as randomized complete blocks were assessed in each year for each population. Entry mean heritabilities for disease resistance were high for both populations (0.876 and 0.761, respectively). Quantitative trait loci (QTL) for SLB resistance were identified in bins 3.04 (two QTL), 6.01, and 8.05 in the HB population and in bin 2.07 in the BB population. No overlap of DTA and SLB resistance QTL was observed, nor was there any phenotypic correlation between the traits. A comparison of the results of all published SLB resistance QTL studies suggested that bins 3.04 and 6.01 are 'hotspots' for SLB resistance QTL.</description><identifier>ISSN: 0031-949X</identifier><identifier>EISSN: 1943-7684</identifier><identifier>DOI: 10.1094/PHYTO-98-3-0315</identifier><identifier>PMID: 18944082</identifier><identifier>CODEN: PHYTAJ</identifier><language>eng</language><publisher>St. Paul, MN: American Phytopathological Society</publisher><subject>Ascomycota - physiology ; Biological and medical sciences ; Breeding ; Cochliobolus heterostrophus ; Flowers - genetics ; Flowers - growth & development ; Flowers - microbiology ; Fundamental and applied biological sciences. Psychology ; Fungal plant pathogens ; Host-Pathogen Interactions ; Immunity, Innate - genetics ; Phytopathology. Animal pests. Plant and forest protection ; Plant Diseases - genetics ; Plant Diseases - microbiology ; Plant Leaves - genetics ; Plant Leaves - growth & development ; Plant Leaves - microbiology ; Quantitative Trait Loci - genetics ; Recombination, Genetic ; Time Factors ; Zea mays ; Zea mays - genetics ; Zea mays - growth & development ; Zea mays - microbiology</subject><ispartof>Phytopathology, 2008-03, Vol.98 (3), p.315-320</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c443t-acd5548a346db28b96ba9ab1a303db7b546f9f0dac5be99ef5a2778a6b2a3d973</citedby><cites>FETCH-LOGICAL-c443t-acd5548a346db28b96ba9ab1a303db7b546f9f0dac5be99ef5a2778a6b2a3d973</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,3711,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20118203$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18944082$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>BALINT-KURTI, P. J</creatorcontrib><creatorcontrib>ZWONITZER, J. C</creatorcontrib><creatorcontrib>PE, M. E</creatorcontrib><creatorcontrib>PEA, G</creatorcontrib><creatorcontrib>LEE, M</creatorcontrib><creatorcontrib>CARDINAL, A. J</creatorcontrib><title>Identification of Quantitative Trait Loci for Resistance to Southern Leaf Blight and Days to Anthesis in Two Maize Recombinant Inbred Line Populations</title><title>Phytopathology</title><addtitle>Phytopathology</addtitle><description>The genetic architecture underlying resistance in maize to southern leaf blight (SLB) caused by Cochliobolus heterostrophus race O is not well understood. The objective of this study was to identify loci contributing to SLB resistance in two recombinant inbred line populations and to compare these to SLB resistance loci in other populations. The two populations used were derived from crosses between maize inbred lines H99 and B73 (HB population-142 lines) and between B73 and B52 (BB population-186 lines). They were evaluated for SLB resistance and for days from planting to anthesis (DTA) in 2005 and 2006. Two replications arranged as randomized complete blocks were assessed in each year for each population. Entry mean heritabilities for disease resistance were high for both populations (0.876 and 0.761, respectively). Quantitative trait loci (QTL) for SLB resistance were identified in bins 3.04 (two QTL), 6.01, and 8.05 in the HB population and in bin 2.07 in the BB population. No overlap of DTA and SLB resistance QTL was observed, nor was there any phenotypic correlation between the traits. A comparison of the results of all published SLB resistance QTL studies suggested that bins 3.04 and 6.01 are 'hotspots' for SLB resistance QTL.</description><subject>Ascomycota - physiology</subject><subject>Biological and medical sciences</subject><subject>Breeding</subject><subject>Cochliobolus heterostrophus</subject><subject>Flowers - genetics</subject><subject>Flowers - growth & development</subject><subject>Flowers - microbiology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Fungal plant pathogens</subject><subject>Host-Pathogen Interactions</subject><subject>Immunity, Innate - genetics</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Plant Diseases - genetics</subject><subject>Plant Diseases - microbiology</subject><subject>Plant Leaves - genetics</subject><subject>Plant Leaves - growth & development</subject><subject>Plant Leaves - microbiology</subject><subject>Quantitative Trait Loci - genetics</subject><subject>Recombination, Genetic</subject><subject>Time Factors</subject><subject>Zea mays</subject><subject>Zea mays - genetics</subject><subject>Zea mays - growth & development</subject><subject>Zea mays - microbiology</subject><issn>0031-949X</issn><issn>1943-7684</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1vFDEMhiMEokvhzA3lArehySQzkxxL-ehKg1pgkeAUOZmEBs0m2yQDKj-E30u2XcGRk2X78WvLL0JPKXlJieQnl-dfNxeNFA1rCKPdPbSikrNm6AW_j1ak1hrJ5Zcj9Cjn74SQQXT9Q3REheSciHaFfq8nG4p33kDxMeDo8IcFaqXU_IfFmwS-4DEaj11M-KPNPhcIxuIS8ae4lCubAh4tOPxq9t-uCoYw4ddwk_fAaaj9OoF9wJufEb8H_8tWERO32oe6Bq-DTnbCow8WX8bdMt-ekR-jBw7mbJ8c4jH6_PbN5uy8GS_erc9Ox8ZwzkoDZuo6LoDxftKt0LLXIEFTYIRNetAd7510ZALTaSuldR20wyCg1y2wSQ7sGL24092leL3YXNTWZ2PnGYKNS1a9HEjbEf5fkMqOsXboK3hyB5oUc07WqV3yW0g3ihK190zdeqakUEztPasTzw7Si97a6R9_MKkCzw8AZAOzS_X_Pv_lWkKpaAljfwDj8KIM</recordid><startdate>20080301</startdate><enddate>20080301</enddate><creator>BALINT-KURTI, P. 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J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c443t-acd5548a346db28b96ba9ab1a303db7b546f9f0dac5be99ef5a2778a6b2a3d973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Ascomycota - physiology</topic><topic>Biological and medical sciences</topic><topic>Breeding</topic><topic>Cochliobolus heterostrophus</topic><topic>Flowers - genetics</topic><topic>Flowers - growth & development</topic><topic>Flowers - microbiology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Fungal plant pathogens</topic><topic>Host-Pathogen Interactions</topic><topic>Immunity, Innate - genetics</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Plant Diseases - genetics</topic><topic>Plant Diseases - microbiology</topic><topic>Plant Leaves - genetics</topic><topic>Plant Leaves - growth & development</topic><topic>Plant Leaves - microbiology</topic><topic>Quantitative Trait Loci - genetics</topic><topic>Recombination, Genetic</topic><topic>Time Factors</topic><topic>Zea mays</topic><topic>Zea mays - genetics</topic><topic>Zea mays - growth & development</topic><topic>Zea mays - microbiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>BALINT-KURTI, P. J</creatorcontrib><creatorcontrib>ZWONITZER, J. C</creatorcontrib><creatorcontrib>PE, M. E</creatorcontrib><creatorcontrib>PEA, G</creatorcontrib><creatorcontrib>LEE, M</creatorcontrib><creatorcontrib>CARDINAL, A. 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C</au><au>PE, M. E</au><au>PEA, G</au><au>LEE, M</au><au>CARDINAL, A. J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Identification of Quantitative Trait Loci for Resistance to Southern Leaf Blight and Days to Anthesis in Two Maize Recombinant Inbred Line Populations</atitle><jtitle>Phytopathology</jtitle><addtitle>Phytopathology</addtitle><date>2008-03-01</date><risdate>2008</risdate><volume>98</volume><issue>3</issue><spage>315</spage><epage>320</epage><pages>315-320</pages><issn>0031-949X</issn><eissn>1943-7684</eissn><coden>PHYTAJ</coden><abstract>The genetic architecture underlying resistance in maize to southern leaf blight (SLB) caused by Cochliobolus heterostrophus race O is not well understood. The objective of this study was to identify loci contributing to SLB resistance in two recombinant inbred line populations and to compare these to SLB resistance loci in other populations. The two populations used were derived from crosses between maize inbred lines H99 and B73 (HB population-142 lines) and between B73 and B52 (BB population-186 lines). They were evaluated for SLB resistance and for days from planting to anthesis (DTA) in 2005 and 2006. Two replications arranged as randomized complete blocks were assessed in each year for each population. Entry mean heritabilities for disease resistance were high for both populations (0.876 and 0.761, respectively). Quantitative trait loci (QTL) for SLB resistance were identified in bins 3.04 (two QTL), 6.01, and 8.05 in the HB population and in bin 2.07 in the BB population. No overlap of DTA and SLB resistance QTL was observed, nor was there any phenotypic correlation between the traits. 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| ispartof | Phytopathology, 2008-03, Vol.98 (3), p.315-320 |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection; American Phytopathological Society Journal Back Issues |
| subjects | Ascomycota - physiology Biological and medical sciences Breeding Cochliobolus heterostrophus Flowers - genetics Flowers - growth & development Flowers - microbiology Fundamental and applied biological sciences. Psychology Fungal plant pathogens Host-Pathogen Interactions Immunity, Innate - genetics Phytopathology. Animal pests. Plant and forest protection Plant Diseases - genetics Plant Diseases - microbiology Plant Leaves - genetics Plant Leaves - growth & development Plant Leaves - microbiology Quantitative Trait Loci - genetics Recombination, Genetic Time Factors Zea mays Zea mays - genetics Zea mays - growth & development Zea mays - microbiology |
| title | Identification of Quantitative Trait Loci for Resistance to Southern Leaf Blight and Days to Anthesis in Two Maize Recombinant Inbred Line Populations |
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