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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampSouza, Anete Pereira de-
dc.typeArtigopt_BR
dc.titleQTL mapping for reaction to Phaeosphaeria leaf spot in a tropical maize populationpt_BR
dc.contributor.authorVieira Moreira, Jose Ubirajara-
dc.contributor.authorVieira Bento, Dyeme Antonio-
dc.contributor.authorde Souza, Anete Pereira-
dc.contributor.authorde Souza, Claudio Lopes, Jr.-
dc.subjectMilhopt_BR
dc.subject.otherlanguageCornpt_BR
dc.description.abstractPhaeosphaeria leaf spot (PLS) is an important disease in tropical and subtropical maize (Zea mays, L.) growing areas, but there is limited information on its inheritance. Thus, this research was conducted to study the inheritance of the PLS disease in tropical maize by using QTL mapping and to assess the feasibility of using marker-assisted selection aimed to develop genotypes resistance to this disease. Highly susceptible L14-04B and highly resistant L08-05F inbred lines were crossed to develop an F-2 population. Two-hundred and fifty six F-2 plants were genotyped with 143 microsatellite markers and their F-2:3 progenies were evaluated at seven environments. Ten plants per plot were evaluated 30 days after silk emergence following a rating scale, and the plot means were used for analyses. The heritability coefficient on a progeny mean basis was high (91.37%), and six QTL were mapped, with one QTL on chromosomes 1, 3, 4, and 6, and two QTL on chromosome 8. The gene action of the QTL ranged from additive to partial dominance, and the average level of dominance was partial dominance; also a dominance x dominance epistatic effect was detected between the QTL mapped on chromosome 8. The phenotypic variance explained by each QTL ranged from 2.91 to 11.86%, and the joint QTL effects explained 41.62% of the phenotypic variance. The alleles conditioning resistance to PLS disease of all mapped QTL were in the resistant parental inbred L08-05F. Thus, these alleles could be transferred to other elite maize inbreds by marker-assisted backcross selection to develop hybrids resistant to PLS diseasept_BR
dc.relation.ispartofTheoretical and Applied Genetics: international journal of plant breeding researchpt_BR
dc.relation.ispartofabbreviationTAGpt_BR
dc.publisher.cityHeidelbergpt_BR
dc.publisher.countryAlemanhapt_BR
dc.publisherSpringerpt_BR
dc.date.issued2009-
dc.date.monthofcirculationNov.pt_BR
dc.language.isoengpt_BR
dc.description.volume119pt_BR
dc.description.issuenumber8pt_BR
dc.description.firstpage1361pt_BR
dc.description.lastpage1369pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0040-5752pt_BR
dc.identifier.eissn1432-2242pt_BR
dc.identifier.doi10.1007/s00122-009-1140-0pt_BR
dc.identifier.urlhttps://link.springer.com/article/10.1007%2Fs00122-009-1140-0pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber2003/302653pt_BR
dc.description.sponsordocumentnumber99/12143-1; 01/05702-6pt_BR
dc.date.available2020-09-08T22:28:26Z-
dc.date.accessioned2020-09-08T22:28:26Z-
dc.description.provenanceSubmitted by Sanches Olivia (olivias@unicamp.br) on 2020-09-08T22:28:26Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-04T15:12:57Z : No. of bitstreams: 1 000271504700002.pdf: 336254 bytes, checksum: a7990022e268dc1c1f1a3c10c6d86b7c (MD5)en
dc.description.provenanceMade available in DSpace on 2020-09-08T22:28:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2009en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/348896-
dc.contributor.departmentDepartamento de Biologia Vegetalpt_BR
dc.contributor.unidadeInstituto de Biologiapt_BR
dc.subject.keywordPhenotypic variancept_BR
dc.subject.keywordGenetic correlationpt_BR
dc.subject.keywordDominance effectpt_BR
dc.subject.keywordEpistatic effectpt_BR
dc.identifier.source000271504700002pt_BR
dc.creator.orcid0000-0003-3831-9829pt_BR
dc.type.formArtigo originalpt_BR
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