Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard).
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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Format: | Artigo de periódico biblioteca |
Language: | English eng |
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2017-01-25
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Subjects: | Commonality, Synchrony index, Flowering, Genetic correlation, Heritability, Population, Progeny testing, Seed yield, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061767 |
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dig-alice-doc-10617672017-08-16T04:05:28Z Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). RESENDE, R. M. S. VALLE, C. B. do RESENDE, M. D. V. ROSANGELA MARIA SIMEAO RESENDE, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF. Commonality Synchrony index Flowering Genetic correlation Heritability Population Progeny testing Seed yield 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. 2017-01-25T11:11:11Z 2017-01-25T11:11:11Z 2017-01-25 2017 2017-03-29T11:11:11Z Artigo de periódico Plant Breeding, v.136, n.1, p. 101-110, Feb. 2017. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061767 en eng openAccess |
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Commonality Synchrony index Flowering Genetic correlation Heritability Population Progeny testing Seed yield Commonality Synchrony index Flowering Genetic correlation Heritability Population Progeny testing Seed yield |
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Commonality Synchrony index Flowering Genetic correlation Heritability Population Progeny testing Seed yield Commonality Synchrony index Flowering Genetic correlation Heritability Population Progeny testing Seed yield RESENDE, R. M. S. VALLE, C. B. do RESENDE, M. D. V. Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
description |
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. |
author2 |
ROSANGELA MARIA SIMEAO RESENDE, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF. |
author_facet |
ROSANGELA MARIA SIMEAO RESENDE, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF. RESENDE, R. M. S. VALLE, C. B. do RESENDE, M. D. V. |
format |
Artigo de periódico |
topic_facet |
Commonality Synchrony index Flowering Genetic correlation Heritability Population Progeny testing Seed yield |
author |
RESENDE, R. M. S. VALLE, C. B. do RESENDE, M. D. V. |
author_sort |
RESENDE, R. M. S. |
title |
Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
title_short |
Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
title_full |
Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
title_fullStr |
Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
title_full_unstemmed |
Unravelling the inheritance, Qst and reproductive phenology attributes of the tetraploid tropical grass Brachiaria ruziziensis (Germain et Evrard). |
title_sort |
unravelling the inheritance, qst and reproductive phenology attributes of the tetraploid tropical grass brachiaria ruziziensis (germain et evrard). |
publishDate |
2017-01-25 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061767 |
work_keys_str_mv |
AT resenderms unravellingtheinheritanceqstandreproductivephenologyattributesofthetetraploidtropicalgrassbrachiariaruziziensisgermainetevrard AT vallecbdo unravellingtheinheritanceqstandreproductivephenologyattributesofthetetraploidtropicalgrassbrachiariaruziziensisgermainetevrard AT resendemdv unravellingtheinheritanceqstandreproductivephenologyattributesofthetetraploidtropicalgrassbrachiariaruziziensisgermainetevrard |
_version_ |
1756023084101402624 |