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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Bibliographic Details
Main Authors: RESENDE, R. M. S., VALLE, C. B. do, RESENDE, M. D. V.
Other Authors: ROSANGELA MARIA SIMEAO RESENDE, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF.
Format: Artigo de periódico biblioteca
Language:English
eng
Published: 2017-01-25
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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spelling 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
institution EMBRAPA
collection DSpace
country Brasil
countrycode BR
component Bibliográfico
access En linea
databasecode dig-alice
tag biblioteca
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language English
eng
topic Commonality
Synchrony index
Flowering
Genetic correlation
Heritability
Population
Progeny testing
Seed yield
Commonality
Synchrony index
Flowering
Genetic correlation
Heritability
Population
Progeny testing
Seed yield
spellingShingle 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
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