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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
21/01/2022 |
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Data da última atualização: |
21/01/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALKIMIM, E. R.; CAIXETA, E. T.; SOUSA, T. V.; GOIS, I. B.; SILVA, F. L. da; SAKIYAMA, N. S.; ZAMBOLIM, L.; ALVES, R. S.; RESENDE, M. D. V. de. |
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Afiliação: |
EMILLY RUAS ALKIMIM, UFTM; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; TIAGO VIEIRA SOUSA, IFTM; ITAMARA BOMFIM GOIS, UFV; FELIPE LOPES DA SILVA, UFV; NEY SUSSUMU SAKIYAMA, UFV; LAÉRCIO ZAMBOLIM, UFV; RODRIGO SILVA ALVES, INCT CAFÉ; MARCOS DEON VILELA DE RESENDE, CNPCa. |
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Título: |
Designing the best breeding strategy for Coffea canephora: Genetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Plos One, v. 16, n. 12, e0260997, 2021. |
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DOI: |
https://doi.org/10.1371/journal.pone.0260997 |
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Idioma: |
Inglês |
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Conteúdo: |
Breeding programs of the species Coffea canephora rely heavily on the significant genetic variability between and within its two varietal groups (conilon and robusta). The use of hybrid families and individuals has been less common. The objectives of this study were to evaluate parents and families from the populations of conilon, robusta, and its hybrids and to define the best breeding and selection strategies for productivity and disease resistance traits. As such, 71 conilon clones, 56 robusta clones, and 20 hybrid families were evaluated over several years for the following traits: vegetative vigor, incidence of rust and cercosporiosis, fruit ripening time, fruit size, plant height, canopy diameter, and yield per plant. Components of variance and genetic parameters were estimated via residual maximum likelihood (REML) and genotypic values were predicted via best linear unbiased prediction (BLUP). Genetic variability among parents (clones) and hybrid families was detected for most of the evaluated traits. The Mulamba-Rank index suggests potential gains up to 17% for the genotypic aggregate of traits in the hybrid population. An intrapopulation recurrent selection within the hybrid population would be the best breeding strategy because the genetic variability, narrow and broad senses heritabilities and selective accuracies for important traits were maximized in the crossed population. Besides, such strategy is simple, low cost and quicker than the concurrent reciprocal recurrent selection in the two parental populations, and this maximizes the genetic gain for unit of time. MenosBreeding programs of the species Coffea canephora rely heavily on the significant genetic variability between and within its two varietal groups (conilon and robusta). The use of hybrid families and individuals has been less common. The objectives of this study were to evaluate parents and families from the populations of conilon, robusta, and its hybrids and to define the best breeding and selection strategies for productivity and disease resistance traits. As such, 71 conilon clones, 56 robusta clones, and 20 hybrid families were evaluated over several years for the following traits: vegetative vigor, incidence of rust and cercosporiosis, fruit ripening time, fruit size, plant height, canopy diameter, and yield per plant. Components of variance and genetic parameters were estimated via residual maximum likelihood (REML) and genotypic values were predicted via best linear unbiased prediction (BLUP). Genetic variability among parents (clones) and hybrid families was detected for most of the evaluated traits. The Mulamba-Rank index suggests potential gains up to 17% for the genotypic aggregate of traits in the hybrid population. An intrapopulation recurrent selection within the hybrid population would be the best breeding strategy because the genetic variability, narrow and broad senses heritabilities and selective accuracies for important traits were maximized in the crossed population. Besides, such strategy is simple, low cost and quicker than the concurrent reciprocal rec... Mostrar Tudo |
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Thesagro: |
Café Robusta; Melhoramento Genético Vegetal. |
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Thesaurus Nal: |
Coffea; Plant breeding. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230438/1/Designing-the-best-breeding-strategy.pdf
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Marc: |
LEADER 02506naa a2200277 a 4500
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024 7 $ahttps://doi.org/10.1371/journal.pone.0260997$2DOI
100 1 $aALKIMIM, E. R.
245 $aDesigning the best breeding strategy for Coffea canephora$bGenetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits.$h[electronic resource]
260 $c2021
520 $aBreeding programs of the species Coffea canephora rely heavily on the significant genetic variability between and within its two varietal groups (conilon and robusta). The use of hybrid families and individuals has been less common. The objectives of this study were to evaluate parents and families from the populations of conilon, robusta, and its hybrids and to define the best breeding and selection strategies for productivity and disease resistance traits. As such, 71 conilon clones, 56 robusta clones, and 20 hybrid families were evaluated over several years for the following traits: vegetative vigor, incidence of rust and cercosporiosis, fruit ripening time, fruit size, plant height, canopy diameter, and yield per plant. Components of variance and genetic parameters were estimated via residual maximum likelihood (REML) and genotypic values were predicted via best linear unbiased prediction (BLUP). Genetic variability among parents (clones) and hybrid families was detected for most of the evaluated traits. The Mulamba-Rank index suggests potential gains up to 17% for the genotypic aggregate of traits in the hybrid population. An intrapopulation recurrent selection within the hybrid population would be the best breeding strategy because the genetic variability, narrow and broad senses heritabilities and selective accuracies for important traits were maximized in the crossed population. Besides, such strategy is simple, low cost and quicker than the concurrent reciprocal recurrent selection in the two parental populations, and this maximizes the genetic gain for unit of time.
650 $aCoffea
650 $aPlant breeding
650 $aCafé Robusta
650 $aMelhoramento Genético Vegetal
700 1 $aCAIXETA, E. T.
700 1 $aSOUSA, T. V.
700 1 $aGOIS, I. B.
700 1 $aSILVA, F. L. da
700 1 $aSAKIYAMA, N. S.
700 1 $aZAMBOLIM, L.
700 1 $aALVES, R. S.
700 1 $aRESENDE, M. D. V. de
773 $tPlos One$gv. 16, n. 12, e0260997, 2021.
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Embrapa Café (CNPCa) |
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| 1. |  | ALKIMIM, E. R.; CAIXETA, E. T.; SOUSA, T. V.; GOIS, I. B.; SILVA, F. L. da; SAKIYAMA, N. S.; ZAMBOLIM, L.; ALVES, R. S.; RESENDE, M. D. V. de. Designing the best breeding strategy for Coffea canephora: Genetic evaluation of pure and hybrid individuals aiming to select for productivity and disease resistance traits. Plos One, v. 16, n. 12, e0260997, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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