Selecting for stable and productive families of Eucalyptus urophylla across a country-wide range of climates in Brazil

Autor: Mario Luiz Teixeira de Moraes, Weber Antônio Neves do Amaral, Clayton Alcarde Alvares, Dario Grattapaglia, Paulo Henrique Müller da Silva, Rinaldo Cesar de Paula, Arno Brune
Přispěvatelé: Via Comendador Pedro Morganti, Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP), APSD – Ghana, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Universidade Católica de Brasília
Rok vydání: 2019
Předmět:
Zdroj: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2019-10-06T15:29:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Universidade de São Paulo To identify stable and productive Eucalyptus urophylla S.T. Blake families across diverse climate zones in Brazil, we evaluated growth and survival of 322 open-pollinated families derived from 13 genetically improved seed sources in 10 trials across the country. Survival and growth data were analyzed using linear mixed models and REML/BLUP. Survival ranged from 51% to 92%, and the mean annual increment varied from 19 to 46 m 3 ·ha −1 ·year −1 . Although planted in suitable climatic zones, some trials had low survival and (or) productivity. Conversely, the highest productivity was recorded in a zone considered to be of low suitability. These results show the importance of assessing the climatic requirements of eucalypts beyond those determined from analyses of their natural distribution, especially when testing already improved seed sources. A number of productive and stable families were identified based on analysis of the interaction between genotype and environment, and from these, 144 individuals were selected and had their genetic diversity estimated using 19 microsatellite DNA markers. The genetic diversity of these selected trees was equivalent to that observed in previous studies of natural populations of E. urophylla, indicating that breeding programs of E. urophylla in Brazil still retain high levels of diversity for sustainable genetic gains. Instituto de Pesquisa e Estudo Florestais (IPEF) Via Comendador Pedro Morganti, 3500 – Bairro Monte Alegre, CEP School of Agriculture São Paulo State University (Unesp) Botucatu Rua José Barbosa de Barros, n° 1780, C.P. 237, CEP Escola Superior de Agricultura “Luiz de Queiroz”/Universidade de São Paulo Avenida Pádua Dias 11, Caixa Postal 9, CEP APSD – Ghana, Plot 27, Block 27 Escola Superior de Agricultura “Luiz de Queiroz”/Universidade de São Paulo, Avenida Pádua Dias 11, Caixa Postal 9, CEP School of Engineering São Paulo State University (Unesp) Ilha Solteira, Av. Brasil Centro, 56, C.P. 31, CEP Plant Genetics Laboratory EMBRAPA Genetic Resources and Biotechnology, CEP Graduate Program in Genomic Sciences and Biotechnology Universidade Católica de Brasília, SGAN Qd 916, CEP School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp) Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane, km 5, CEP School of Agriculture São Paulo State University (Unesp) Botucatu Rua José Barbosa de Barros, n° 1780, C.P. 237, CEP School of Engineering São Paulo State University (Unesp) Ilha Solteira, Av. Brasil Centro, 56, C.P. 31, CEP School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp) Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane, km 5, CEP FAPESP: 15/15651-2
Databáze: OpenAIRE
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