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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Corte. |
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Data corrente: |
25/01/2017 |
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Data da última atualização: |
29/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RESENDE, R. M. S.; VALLE, C. B. do; RESENDE, M. D. V. |
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Afiliação: |
ROSANGELA MARIA SIMEAO RESENDE, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF. |
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Título: |
Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Plant Breeding, v.136, n.1, p. 101-110, Feb. 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The autotetraploid forage Congo signal grass (Brachiaria ruziziensis) is an important component in the Brachiaria breeding programme. As with other tropical forage grass species, the association between flowering and seed yield components, the mode of inheritance and the effects of population structure on phenotypic breeding are lacking. Seventeen characteristics evaluated in 59 half-sib progeny of seven subpopulations were analysed using a mixed model methodology. According to the commonality analysis, the total seed yield (0.67) and number of days to flowering (0.22) had a greater influence on the filled-seed yield. The flowering synchrony, total number of panicles, filled-seed yield, green matter yield and dry matter yield presented statistically significant additive genetic variance between and within the subpopulations. The QST estimates ranged from 0.09 for the flowering synchrony index to 0.31 for the filled-seed yield. The effects of population structure and its use in breeding programmes are further discussed. |
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Palavras-Chave: |
Commonality; Synchrony index. |
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Thesagro: |
Brachiaria Ruziziensis. |
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Thesaurus Nal: |
Flowering; Genetic correlation; Heritability; Population; Progeny testing; Seed yield. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153951/1/unravelling-the-inheritance.pdf
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Marc: |
LEADER 01824naa a2200253 a 4500
001 2061767
005 2017-03-29
008 2017 bl uuuu u00u1 u #d
100 1 $aRESENDE, R. M. S.
245 $aUnravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard).$h[electronic resource]
260 $c2017
520 $aThe autotetraploid forage Congo signal grass (Brachiaria ruziziensis) is an important component in the Brachiaria breeding programme. As with other tropical forage grass species, the association between flowering and seed yield components, the mode of inheritance and the effects of population structure on phenotypic breeding are lacking. Seventeen characteristics evaluated in 59 half-sib progeny of seven subpopulations were analysed using a mixed model methodology. According to the commonality analysis, the total seed yield (0.67) and number of days to flowering (0.22) had a greater influence on the filled-seed yield. The flowering synchrony, total number of panicles, filled-seed yield, green matter yield and dry matter yield presented statistically significant additive genetic variance between and within the subpopulations. The QST estimates ranged from 0.09 for the flowering synchrony index to 0.31 for the filled-seed yield. The effects of population structure and its use in breeding programmes are further discussed.
650 $aFlowering
650 $aGenetic correlation
650 $aHeritability
650 $aPopulation
650 $aProgeny testing
650 $aSeed yield
650 $aBrachiaria Ruziziensis
653 $aCommonality
653 $aSynchrony index
700 1 $aVALLE, C. B. do
700 1 $aRESENDE, M. D. V.
773 $tPlant Breeding$gv.136, n.1, p. 101-110, Feb. 2017.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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