Genetic control of resistance to gray leaf spot of maize in tropical germplasm
The main goal of this study was to assess the nature and magnitude of gene effects for resistance to Cercospora leaf spot. A randomized block design with three replications was used. The data were obtained at the plant level by assessing the disease severity. The data were analyzed per experiment, u...
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| Veröffentlicht in: | Crop breeding and applied biotechnology 2012-06, Vol.12 (2), p.145-150 |
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| creator | Brito, A.H. de Davide, L.M.C Von Pinho, R.G Carvalho, R.P. de Reis, M.C. dos |
| description | The main goal of this study was to assess the nature and magnitude of gene effects for resistance to Cercospora leaf spot. A randomized block design with three replications was used. The data were obtained at the plant level by assessing the disease severity. The data were analyzed per experiment, using the average data per plot. A dominant-additive genetic model without epistasis was considered, with estimation of the components of means and variance. The genetic control of resistance to gray leaf spot is polygenic with predominance of the additive effects. Dominance was observed in a few small-effect loci and high heritability values.
O objetivo deste trabalho foi estudar a natureza e a magnitude dos efeitos gênicos da resistência à Cercosporiose. Foi utilizado o delineamento experimental de blocos ao acaso, com três repetições. A avaliação da resistência foi realizada utilizando escala diagramática com notas. Os dados obtidos foram analisados por experimento, utilizando-se médias de parcela. Foi considerado um modelo aditivo-dominante sem epistasia, com a estimação dos componentes de média e de variância. O controle genético da resistência à Cercosporiose é poligênico, com predominância dos efeitos aditivos, com dominância em poucos locos de pequeno efeito e alta herdabilidade, condição essa favorável à seleção. |
| doi_str_mv | 10.1590/S1984-70332012000200008 |
| format | Article |
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O objetivo deste trabalho foi estudar a natureza e a magnitude dos efeitos gênicos da resistência à Cercosporiose. Foi utilizado o delineamento experimental de blocos ao acaso, com três repetições. A avaliação da resistência foi realizada utilizando escala diagramática com notas. Os dados obtidos foram analisados por experimento, utilizando-se médias de parcela. Foi considerado um modelo aditivo-dominante sem epistasia, com a estimação dos componentes de média e de variância. O controle genético da resistência à Cercosporiose é poligênico, com predominância dos efeitos aditivos, com dominância em poucos locos de pequeno efeito e alta herdabilidade, condição essa favorável à seleção.</description><identifier>ISSN: 1518-7853</identifier><identifier>ISSN: 1984-7033</identifier><identifier>EISSN: 1984-7033</identifier><identifier>DOI: 10.1590/S1984-70332012000200008</identifier><language>eng</language><publisher>Vicosa: Crop Breeding and Applied Biotechnology</publisher><subject>AGRONOMY ; BIOTECHNOLOGY & APPLIED MICROBIOLOGY ; CERCOSPORA ; CERCOSPORIOSE ; CONTROL GENA©TICO ; CONTROLE GENÉTICO ; Corn ; DOENÇA DE PLANTA ; GENETIC CONTROL ; Germplasm ; http://www.fao.org/aos/agrovoc#c_1470 ; http://www.fao.org/aos/agrovoc#c_3216 ; http://www.fao.org/aos/agrovoc#c_8504 ; Leafspot ; LUTTE GA©NA©TIQUE ; MILHO ; ZEA MAYS</subject><ispartof>Crop breeding and applied biotechnology, 2012-06, Vol.12 (2), p.145-150</ispartof><rights>Copyright Crop Breeding and Applied Biotechnology 2012</rights><rights>This work is licensed under a Creative Commons Attribution 4.0 International License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c325t-1acacb72a17268900eca71287df4f00b680b19874f1ac33a0e1985b300eb69043</citedby><cites>FETCH-LOGICAL-c325t-1acacb72a17268900eca71287df4f00b680b19874f1ac33a0e1985b300eb69043</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,860,881,27901,27902</link.rule.ids></links><search><creatorcontrib>Brito, A.H. de</creatorcontrib><creatorcontrib>Davide, L.M.C</creatorcontrib><creatorcontrib>Von Pinho, R.G</creatorcontrib><creatorcontrib>Carvalho, R.P. de</creatorcontrib><creatorcontrib>Reis, M.C. dos</creatorcontrib><title>Genetic control of resistance to gray leaf spot of maize in tropical germplasm</title><title>Crop breeding and applied biotechnology</title><addtitle>Crop Breed. Appl. Biotechnol</addtitle><description>The main goal of this study was to assess the nature and magnitude of gene effects for resistance to Cercospora leaf spot. A randomized block design with three replications was used. The data were obtained at the plant level by assessing the disease severity. The data were analyzed per experiment, using the average data per plot. A dominant-additive genetic model without epistasis was considered, with estimation of the components of means and variance. The genetic control of resistance to gray leaf spot is polygenic with predominance of the additive effects. Dominance was observed in a few small-effect loci and high heritability values.
O objetivo deste trabalho foi estudar a natureza e a magnitude dos efeitos gênicos da resistência à Cercosporiose. Foi utilizado o delineamento experimental de blocos ao acaso, com três repetições. A avaliação da resistência foi realizada utilizando escala diagramática com notas. Os dados obtidos foram analisados por experimento, utilizando-se médias de parcela. Foi considerado um modelo aditivo-dominante sem epistasia, com a estimação dos componentes de média e de variância. O controle genético da resistência à Cercosporiose é poligênico, com predominância dos efeitos aditivos, com dominância em poucos locos de pequeno efeito e alta herdabilidade, condição essa favorável à seleção.</description><subject>AGRONOMY</subject><subject>BIOTECHNOLOGY & APPLIED MICROBIOLOGY</subject><subject>CERCOSPORA</subject><subject>CERCOSPORIOSE</subject><subject>CONTROL GENA©TICO</subject><subject>CONTROLE GENÉTICO</subject><subject>Corn</subject><subject>DOENÇA DE PLANTA</subject><subject>GENETIC CONTROL</subject><subject>Germplasm</subject><subject>http://www.fao.org/aos/agrovoc#c_1470</subject><subject>http://www.fao.org/aos/agrovoc#c_3216</subject><subject>http://www.fao.org/aos/agrovoc#c_8504</subject><subject>Leafspot</subject><subject>LUTTE GA©NA©TIQUE</subject><subject>MILHO</subject><subject>ZEA MAYS</subject><issn>1518-7853</issn><issn>1984-7033</issn><issn>1984-7033</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kM1KxDAUhYMoOI4-ghhw3fGmaZtkqYOOwqDgzzqkMRkytE1NOgt9elMruhBchORyznduOAidEViQUsDFExG8yBhQmgPJAWA8wPfQ7EfYT--S8Izxkh6ioxi3AEVZCTFD9yvTmcFprH03BN9gb3Ew0cVBddrgweNNUO-4Mcri2Pth1FvlPgx2HU5A77Rq8MaEtm9UbI_RgVVNNCff9xy93Fw_L2-z9cPqbnm5zjTNyyEjSitds1wRlldcABitGMk5e7WFBagrDnX6PStsclKqwKSprGky1pWAgs7RYsqN2pnGy63fhS4tlF9tyD9tJOB8Avrg33YmDr8IEbSiBYVijGWTSwcfYzBW9sG1KrxLAnJs-5_804m0yku1CS7Kq8fJwgUB-gn4K3cz</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Brito, A.H. de</creator><creator>Davide, L.M.C</creator><creator>Von Pinho, R.G</creator><creator>Carvalho, R.P. de</creator><creator>Reis, M.C. dos</creator><general>Crop Breeding and Applied Biotechnology</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X2</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M7P</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GPN</scope></search><sort><creationdate>20120601</creationdate><title>Genetic control of resistance to gray leaf spot of maize in tropical germplasm</title><author>Brito, A.H. de ; 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O objetivo deste trabalho foi estudar a natureza e a magnitude dos efeitos gênicos da resistência à Cercosporiose. Foi utilizado o delineamento experimental de blocos ao acaso, com três repetições. A avaliação da resistência foi realizada utilizando escala diagramática com notas. Os dados obtidos foram analisados por experimento, utilizando-se médias de parcela. Foi considerado um modelo aditivo-dominante sem epistasia, com a estimação dos componentes de média e de variância. O controle genético da resistência à Cercosporiose é poligênico, com predominância dos efeitos aditivos, com dominância em poucos locos de pequeno efeito e alta herdabilidade, condição essa favorável à seleção.</abstract><cop>Vicosa</cop><pub>Crop Breeding and Applied Biotechnology</pub><doi>10.1590/S1984-70332012000200008</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1518-7853 |
| ispartof | Crop breeding and applied biotechnology, 2012-06, Vol.12 (2), p.145-150 |
| issn | 1518-7853 1984-7033 1984-7033 |
| language | eng |
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| source | DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | AGRONOMY BIOTECHNOLOGY & APPLIED MICROBIOLOGY CERCOSPORA CERCOSPORIOSE CONTROL GENA©TICO CONTROLE GENÉTICO Corn DOENÇA DE PLANTA GENETIC CONTROL Germplasm http://www.fao.org/aos/agrovoc#c_1470 http://www.fao.org/aos/agrovoc#c_3216 http://www.fao.org/aos/agrovoc#c_8504 Leafspot LUTTE GA©NA©TIQUE MILHO ZEA MAYS |
| title | Genetic control of resistance to gray leaf spot of maize in tropical germplasm |
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