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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
03/07/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MISTRO, J. C.; RESENDE, M. D. V. de; FAZUOLI, L. C.; VENCOVSKY, R. |
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Título: |
Effective population size and genetic gain expected in a population of Coffea canephora. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 19, n. 1, Jan./Mar. 2019. 7 p. |
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DOI: |
10.1590/1984-70332019v19n1a01 |
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Idioma: |
Inglês |
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Conteúdo: |
This work aimed to study the effective population size and genetic gain in a population of robusta coffee (Coffea canephora Pierre) and verify the possibility of using recurrent selection. The experiment comprised 25 treatments, consisting of 21 C. canephora progenies and four C. arabica (cultivars) grown in Brazil. The experimental design was a 5x5 quadruple balanced lattice, with 24 replications, with one plant per plot. Six harvests were performed in each plant. Statistical analysis was carried out using the mixed model methodology. The analysis showed high additive genetic variability, and the magnitude of the additive components prevailed over that of the dominance components. These facts revealed the plant population liability to undergo recurrent selection, whose expected genetic gains were high. Results suggest that the effective population size and inbreeding degree throughout recurrent selection cycles be monitored. During selective cycles, cloning with weak selection is required due to few progenies. |
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Palavras-Chave: |
Additive components; Genética quantitativa; Robusta coffee. |
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Thesagro: |
Café; Endogamia. |
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Thesaurus Nal: |
Inbreeding; Quantitative genetics. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199209/1/2019-M.Deon-CBAB-Effective.pdf
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Marc: |
LEADER 01816naa a2200253 a 4500
001 2110351
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/1984-70332019v19n1a01$2DOI
100 1 $aMISTRO, J. C.
245 $aEffective population size and genetic gain expected in a population of Coffea canephora.$h[electronic resource]
260 $c2019
520 $aThis work aimed to study the effective population size and genetic gain in a population of robusta coffee (Coffea canephora Pierre) and verify the possibility of using recurrent selection. The experiment comprised 25 treatments, consisting of 21 C. canephora progenies and four C. arabica (cultivars) grown in Brazil. The experimental design was a 5x5 quadruple balanced lattice, with 24 replications, with one plant per plot. Six harvests were performed in each plant. Statistical analysis was carried out using the mixed model methodology. The analysis showed high additive genetic variability, and the magnitude of the additive components prevailed over that of the dominance components. These facts revealed the plant population liability to undergo recurrent selection, whose expected genetic gains were high. Results suggest that the effective population size and inbreeding degree throughout recurrent selection cycles be monitored. During selective cycles, cloning with weak selection is required due to few progenies.
650 $aInbreeding
650 $aQuantitative genetics
650 $aCafé
650 $aEndogamia
653 $aAdditive components
653 $aGenética quantitativa
653 $aRobusta coffee
700 1 $aRESENDE, M. D. V. de
700 1 $aFAZUOLI, L. C.
700 1 $aVENCOVSKY, R.
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 19, n. 1, Jan./Mar. 2019. 7 p.
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Embrapa Florestas (CNPF) |
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