Estimation of variance components and prediction of breeding values in rubber tree breeding using the REML/BLUP procedure

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dc.contributor.authorFurlani, Renata Capistrano Moreira [UNESP]
dc.contributor.authorde Moraes, Mario Luiz Teixeira [UNESP]
dc.contributor.authorde Resende, Marcos Deon Vilela
dc.contributor.authorFurlani Jr., Enes [UNESP]
dc.contributor.authorGonçalves, Paulo de Souza
dc.contributor.authorFilho, Walter Veriano Valério [UNESP]
dc.contributor.authorde Paiva, João Rodrigues
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionBiomathematics and Statistics Department
dc.contributor.institutionInstituto Agronômico
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2014-05-27T11:21:43Z
dc.date.available2014-05-27T11:21:43Z
dc.date.issued2005-12-01
dc.description.abstractThe present paper deals with estimation of variance components, prediction of breeding values and selection in a population of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell.-Arg.] from Rio Branco, State of Acre, Brazil. The REML/BLUP (restricted maximum likelihood/best linear unbiased prediction) procedure was applied. For this purpose, 37 rubber tree families were obtained and assessed in a randomized complete block design, with three unbalanced replications. The field trial was carried out at the Experimental Station of UNESP, located in Selvíria, State of Mato Grosso do Sul, Brazil. The quantitative traits evaluated were: girth (G), bark thickness (BT), number of latex vessel rings (NR), and plant height (PH). Given the unbalanced condition of the progeny test, the REML/BLUP procedure was used for estimation. The narrow-sense individual heritability estimates were 0.43 for G, 0.18 for BT, 0.01 for NR, and 0.51 for PH. Two selection strategies were adopted: one short-term (ST - selection intensity of 8.85%) and the other long-term (LT - selection intensity of 26.56%). For G, the estimated genetic gains in relation to the population average were 26.80% and 17.94%, respectively, according to the ST and LT strategies. The effective population sizes were 22.35 and 46.03, respectively. The LT and ST strategies maintained 45.80% and 28.24%, respectively, of the original genetic diversity represented in the progeny test. So, it can be inferred that this population has potential for both breeding and ex situ genetic conservation as a supplier of genetic material for advanced rubber tree breeding programs. Copyright by the Brazilian Society of Genetics.en
dc.description.affiliationUniversidade Estadual Paulista 'Júlio de Mesquita Filho' Faculdade de Engenharia de Ilha Solteira, Av. Brasil Centro 56, 15385-000 Ilha Solteira, SP
dc.description.affiliationRothamsted Research Biomathematics and Statistics Department, Hertfordshire
dc.description.affiliationInstituto Agronômico, Campinas, SP
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária CNPAT, Fortaleza, CE
dc.description.affiliationUnespUniversidade Estadual Paulista 'Júlio de Mesquita Filho' Faculdade de Engenharia de Ilha Solteira, Av. Brasil Centro 56, 15385-000 Ilha Solteira, SP
dc.format.extent271-276
dc.identifierhttp://dx.doi.org/10.1590/S1415-47572005000200017
dc.identifier.citationGenetics and Molecular Biology, v. 28, n. 2, p. 271-276, 2005.
dc.identifier.doi10.1590/S1415-47572005000200017
dc.identifier.file2-s2.0-30644475005.pdf
dc.identifier.issn1415-4757
dc.identifier.issn1678-4685
dc.identifier.scieloS1415-47572005000200017
dc.identifier.scopus2-s2.0-30644475005
dc.identifier.urihttp://hdl.handle.net/11449/68569
dc.identifier.wosWOS:000230929200017
dc.language.isoeng
dc.relation.ispartofGenetics and Molecular Biology
dc.relation.ispartofjcr1.493
dc.relation.ispartofsjr0,638
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBreeding strategies
dc.subjectEffective population size
dc.subjectLinear mixed model
dc.subjectRubber tree improvement
dc.subjectbark
dc.subjectcontrolled study
dc.subjectgenetic conservation
dc.subjectgenetic gain
dc.subjectgenetic variability
dc.subjectHevea brasiliensis
dc.subjectmaximum likelihood method
dc.subjectnonhuman
dc.subjectplant breeding
dc.subjectpopulation genetics
dc.subjectpopulation size
dc.subjectquantitative analysis
dc.subjectstatistical analysis
dc.subjectstatistical significance
dc.titleEstimation of variance components and prediction of breeding values in rubber tree breeding using the REML/BLUP procedureen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/gmb/iaboutj.htm

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