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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
27/09/2021 |
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Data da última atualização: |
16/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RESENDE, R. T.; SILVA, P. I. T.; SILVA JUNIOR, O. B. da; FREITAS, M. L. M.; SEBBENN, A. M.; SOUSA, V. A. de; AGUIAR, A. V. de; GRATTAPAGLIA, D. |
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Afiliação: |
RAFAEL T. RESENDE, Universidade federal de Goiás; PEDRO ITALO T. SILVA, Universidade de Brasília; ORZENIL BONFIM DA SILVA JUNIOR, Cenargen; MIGUEL L. MENEZES FREITAS, Instituto Florestal de São Paulo; ALEXANDRE M. SEBBENN, Instituto Florestal de São Paulo; VALDERES APARECIDA DE SOUSA, CNPF; ANANDA VIRGINIA DE AGUIAR, CNPF; DARIO GRATTAPAGLIA, Cenargen. |
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Título: |
Age trends in genetic parameters for growth performance across country-wide provenances of the iconic conifer tree Araucaria angustifolia show strong prospects for systematic breeding and early selection. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 501, 119671, Dec. 2021. 13 p. |
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DOI: |
https://doi.org/10.1016/j.foreco.2021.119671 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding the growth patterns of long-lived conifer tree species is important to devise breeding and early
selection strategies, predict future biomass productivity and assess adaptive tree fitness for long term conservation efforts. We investigated the genetic variation for growth traits of Araucaria angustifolia, the grandiose
renowned ?Parana ´ pine? tree, in a trial involving 122 families across 15 provenances covering the entire natural
range of the species in Brazil. Measurements at ages 7, 24, 32, 33 and 35 were used to adjust continuous growth
curves based on nonlinear mixed-effect models for all 2158 trees, providing annual estimates for unmeasured
ages in the 7-to-35-year interval. Estimated values closely matched observed ones and a reduction of the coefficient of residual variation was observed in the estimated data, possibly due to removal of random error in the
observed measurements, making the estimated curves more reliable to predict growth patterns. Genetic variation
for growth within provenances was greater than between, with a trend of increasing heritabilities over time for
most provenances. Substantial genetic variation found both within and between families could drive efficient
early selection at both levels. All provenances included individual trees and families with good potential to be
selected for shorter rotations. Growth curves show that trees invest first in height and later in diameter growth.
Considerable variation was observed across provenances for the optimal age and optimal tree volume at which
annual growth increment peaks, a tipping point that could be used as a predictor of the optimal rotation age and
expected tree volume. The data clearly indicate potential for early selection for growth at age 7?10 with an 85%
prediction accuracy of growth at age 35. Additionally, growth data indicate potential of shortening harvest age
from 30?35 to 15?20 years by selecting the best individuals and families. These results underscore the potential
of expanding investments in breeding and plantation forestry of A. angustifolia, which in parallel could contribute
to enhancing conservation efforts of this iconic subtropical conifer. MenosUnderstanding the growth patterns of long-lived conifer tree species is important to devise breeding and early
selection strategies, predict future biomass productivity and assess adaptive tree fitness for long term conservation efforts. We investigated the genetic variation for growth traits of Araucaria angustifolia, the grandiose
renowned ?Parana ´ pine? tree, in a trial involving 122 families across 15 provenances covering the entire natural
range of the species in Brazil. Measurements at ages 7, 24, 32, 33 and 35 were used to adjust continuous growth
curves based on nonlinear mixed-effect models for all 2158 trees, providing annual estimates for unmeasured
ages in the 7-to-35-year interval. Estimated values closely matched observed ones and a reduction of the coefficient of residual variation was observed in the estimated data, possibly due to removal of random error in the
observed measurements, making the estimated curves more reliable to predict growth patterns. Genetic variation
for growth within provenances was greater than between, with a trend of increasing heritabilities over time for
most provenances. Substantial genetic variation found both within and between families could drive efficient
early selection at both levels. All provenances included individual trees and families with good potential to be
selected for shorter rotations. Growth curves show that trees invest first in height and later in diameter growth.
Considerable variation was observed ... Mostrar Tudo |
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Palavras-Chave: |
Conifer breeding; Genetic parameters; Individual tree modeling; Mixed models; Random regression. |
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Thesagro: |
Araucária Angustifólia; Pinheiro do Paraná. |
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Thesaurus Nal: |
Early selection. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/226395/1/1-s2.0-S0378112721007611-main.pdf
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Marc: |
LEADER 03310naa a2200313 a 4500
001 2134780
005 2021-12-16
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.foreco.2021.119671$2DOI
100 1 $aRESENDE, R. T.
245 $aAge trends in genetic parameters for growth performance across country-wide provenances of the iconic conifer tree Araucaria angustifolia show strong prospects for systematic breeding and early selection.$h[electronic resource]
260 $c2021
520 $aUnderstanding the growth patterns of long-lived conifer tree species is important to devise breeding and early selection strategies, predict future biomass productivity and assess adaptive tree fitness for long term conservation efforts. We investigated the genetic variation for growth traits of Araucaria angustifolia, the grandiose renowned ?Parana ´ pine? tree, in a trial involving 122 families across 15 provenances covering the entire natural range of the species in Brazil. Measurements at ages 7, 24, 32, 33 and 35 were used to adjust continuous growth curves based on nonlinear mixed-effect models for all 2158 trees, providing annual estimates for unmeasured ages in the 7-to-35-year interval. Estimated values closely matched observed ones and a reduction of the coefficient of residual variation was observed in the estimated data, possibly due to removal of random error in the observed measurements, making the estimated curves more reliable to predict growth patterns. Genetic variation for growth within provenances was greater than between, with a trend of increasing heritabilities over time for most provenances. Substantial genetic variation found both within and between families could drive efficient early selection at both levels. All provenances included individual trees and families with good potential to be selected for shorter rotations. Growth curves show that trees invest first in height and later in diameter growth. Considerable variation was observed across provenances for the optimal age and optimal tree volume at which annual growth increment peaks, a tipping point that could be used as a predictor of the optimal rotation age and expected tree volume. The data clearly indicate potential for early selection for growth at age 7?10 with an 85% prediction accuracy of growth at age 35. Additionally, growth data indicate potential of shortening harvest age from 30?35 to 15?20 years by selecting the best individuals and families. These results underscore the potential of expanding investments in breeding and plantation forestry of A. angustifolia, which in parallel could contribute to enhancing conservation efforts of this iconic subtropical conifer.
650 $aEarly selection
650 $aAraucária Angustifólia
650 $aPinheiro do Paraná
653 $aConifer breeding
653 $aGenetic parameters
653 $aIndividual tree modeling
653 $aMixed models
653 $aRandom regression
700 1 $aSILVA, P. I. T.
700 1 $aSILVA JUNIOR, O. B. da
700 1 $aFREITAS, M. L. M.
700 1 $aSEBBENN, A. M.
700 1 $aSOUSA, V. A. de
700 1 $aAGUIAR, A. V. de
700 1 $aGRATTAPAGLIA, D.
773 $tForest Ecology and Management$gv. 501, 119671, Dec. 2021. 13 p.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
19/08/2021 |
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Data da última atualização: |
19/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
FONSECA, A. J.; TASSONE, G. A. T.; CARNEIRO, M. A. C.; CARVALHO, G. R.; CARVALHO, C. H. S. de; BOTELHO, C. E. |
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Afiliação: |
ARLEY JOSÉ FONSECA, EPAMIG; GUILHERME AUGUSTO TEIXEIRA TASSONE, UFLA; MARCO AURÉLIO CARBONE CARNEIRO, UFLA; GLADYSTON RODRIGUES CARVALHO, EPAMIG; CARLOS HENRIQUE S DE CARVALHO, CNPCa; CESAR ELIAS BOTELHO, UFLA. |
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Título: |
Roles of arbuscular mycorrhizal fungi on acclimatization of clones of Coffea arabica L. produced by somatic embryogenesis. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 44, e001120, 2020. |
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DOI: |
http://dx.doi.org/10.1590/1413-7054202044001120 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The production of Coffea arabica L. clone seedlings through the somatic embryogenesis technique is one of the alternatives of greatest demand for coffee producers. However, clones can face difficulties related to acclimatization carried out under greenhouse conditions, which can increase the production costs. A tested alternative with promising results is inoculation with arbuscular mycorrhizal fungi (AMF) during the seedling acclimatization process. Thus, this study aimed to promote the improvement of the seedling production process through somatic embryogenesis associated with inoculation with AMF. For the production of the clones, seedlings were used in the phase when they presented four pairs of leaves (Clone 1 "Fruiting red Catucaí" and Clone 2 "Acauã"), using "somatic embryogenesis" bioreactors, followed by inoculation with Rhizophagus clarus, Gigaspora margarita and Acaulospora mellea, a mixture of R. clarus and G. margarita and a mixture of R. clarus, G. margarita and A. mellea. After six months, agronomic parameters, leaf nutrient contents and root mycorrhizal colonization were evaluated. The studied clones behaved differently when inoculated with AMFs. Clone 1 showed the best development in the greenhouse, which was determined by the agronomic parameters. Thus, Clone 1 is indicated for the production of vigorous seedlings when associated with inoculation with AMFs. Resumo A produção de mudas de clone de Coffea arabica L. é uma das alternativas de maior demanda para cafeicultores, existindo programas de melhoramento através da técnica de embriogênese somática, no entanto, os clones apresentam dificuldades de pegamento na fase de aclimatação em casa de vegetação elevando custo de produção. Uma alternativa testada com resultados promissores é a inoculação com fungos micorrízicos arbusculares (FMA) durante o processo de aclimatação das mudas. Assim, o objetivo deste trabalho foi promover a melhoria do processo de produção de mudas através de embriogênese somática associada a inoculação com fungos micorrízicos arbusculares. Para a produção dos clones, plântulas foram utilizadas quando apresentaram quatro pares de folhas (clone 1 "Frutificação vermelha Catucaí" e clone 2 "Acauã") produzidos e desenvolvidos em biorreatores "embriogênese somática" e quando levadas para o viveiro inoculadas com Rhizophagus clarus, Gigaspora margarita e Acaulospora mellea, a mistura de R. clarus e G. margarita e a mistura de R. clarus, G. margarita e A. mellea. Após seis meses foram avaliados os parâmetros agronômicos, teores de nutrientes foliar e a colonização micorrizica nas raízes. Os clones se comportaram diferentemente quando inoculados com o FMAs, sendo que o clone 1, o que apresentou melhor desenvolvimento no viveiro determinadas pelos parâmetros agronômicos, sendo indicada na produção de mudas clonais vigorosas qu, ando associado a inoculação com fungos micorrízicos arbusculares. MenosAbstract The production of Coffea arabica L. clone seedlings through the somatic embryogenesis technique is one of the alternatives of greatest demand for coffee producers. However, clones can face difficulties related to acclimatization carried out under greenhouse conditions, which can increase the production costs. A tested alternative with promising results is inoculation with arbuscular mycorrhizal fungi (AMF) during the seedling acclimatization process. Thus, this study aimed to promote the improvement of the seedling production process through somatic embryogenesis associated with inoculation with AMF. For the production of the clones, seedlings were used in the phase when they presented four pairs of leaves (Clone 1 "Fruiting red Catucaí" and Clone 2 "Acauã"), using "somatic embryogenesis" bioreactors, followed by inoculation with Rhizophagus clarus, Gigaspora margarita and Acaulospora mellea, a mixture of R. clarus and G. margarita and a mixture of R. clarus, G. margarita and A. mellea. After six months, agronomic parameters, leaf nutrient contents and root mycorrhizal colonization were evaluated. The studied clones behaved differently when inoculated with AMFs. Clone 1 showed the best development in the greenhouse, which was determined by the agronomic parameters. Thus, Clone 1 is indicated for the production of vigorous seedlings when associated with inoculation with AMFs. Resumo A produção de mudas de clone de Coffea arabica L. é uma das alternativas de maior dem... Mostrar Tudo |
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Thesagro: |
Clone; Enraizamento; Micorriza; Nutrição Vegetal; Propagação Vegetativa. |
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Thesaurus NAL: |
Clones; Mycorrhizae; Plant nutrition; Rooting; Vegetative propagation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225355/1/Roles-of-arbuscular-mycorrhizal-fungi-on-acclimatization.pdf
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Marc: |
LEADER 03939naa a2200313 a 4500
001 2133737
005 2021-08-19
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1413-7054202044001120$2DOI
100 1 $aFONSECA, A. J.
245 $aRoles of arbuscular mycorrhizal fungi on acclimatization of clones of Coffea arabica L. produced by somatic embryogenesis.$h[electronic resource]
260 $c2020
520 $aAbstract The production of Coffea arabica L. clone seedlings through the somatic embryogenesis technique is one of the alternatives of greatest demand for coffee producers. However, clones can face difficulties related to acclimatization carried out under greenhouse conditions, which can increase the production costs. A tested alternative with promising results is inoculation with arbuscular mycorrhizal fungi (AMF) during the seedling acclimatization process. Thus, this study aimed to promote the improvement of the seedling production process through somatic embryogenesis associated with inoculation with AMF. For the production of the clones, seedlings were used in the phase when they presented four pairs of leaves (Clone 1 "Fruiting red Catucaí" and Clone 2 "Acauã"), using "somatic embryogenesis" bioreactors, followed by inoculation with Rhizophagus clarus, Gigaspora margarita and Acaulospora mellea, a mixture of R. clarus and G. margarita and a mixture of R. clarus, G. margarita and A. mellea. After six months, agronomic parameters, leaf nutrient contents and root mycorrhizal colonization were evaluated. The studied clones behaved differently when inoculated with AMFs. Clone 1 showed the best development in the greenhouse, which was determined by the agronomic parameters. Thus, Clone 1 is indicated for the production of vigorous seedlings when associated with inoculation with AMFs. Resumo A produção de mudas de clone de Coffea arabica L. é uma das alternativas de maior demanda para cafeicultores, existindo programas de melhoramento através da técnica de embriogênese somática, no entanto, os clones apresentam dificuldades de pegamento na fase de aclimatação em casa de vegetação elevando custo de produção. Uma alternativa testada com resultados promissores é a inoculação com fungos micorrízicos arbusculares (FMA) durante o processo de aclimatação das mudas. Assim, o objetivo deste trabalho foi promover a melhoria do processo de produção de mudas através de embriogênese somática associada a inoculação com fungos micorrízicos arbusculares. Para a produção dos clones, plântulas foram utilizadas quando apresentaram quatro pares de folhas (clone 1 "Frutificação vermelha Catucaí" e clone 2 "Acauã") produzidos e desenvolvidos em biorreatores "embriogênese somática" e quando levadas para o viveiro inoculadas com Rhizophagus clarus, Gigaspora margarita e Acaulospora mellea, a mistura de R. clarus e G. margarita e a mistura de R. clarus, G. margarita e A. mellea. Após seis meses foram avaliados os parâmetros agronômicos, teores de nutrientes foliar e a colonização micorrizica nas raízes. Os clones se comportaram diferentemente quando inoculados com o FMAs, sendo que o clone 1, o que apresentou melhor desenvolvimento no viveiro determinadas pelos parâmetros agronômicos, sendo indicada na produção de mudas clonais vigorosas qu, ando associado a inoculação com fungos micorrízicos arbusculares.
650 $aClones
650 $aMycorrhizae
650 $aPlant nutrition
650 $aRooting
650 $aVegetative propagation
650 $aClone
650 $aEnraizamento
650 $aMicorriza
650 $aNutrição Vegetal
650 $aPropagação Vegetativa
700 1 $aTASSONE, G. A. T.
700 1 $aCARNEIRO, M. A. C.
700 1 $aCARVALHO, G. R.
700 1 $aCARVALHO, C. H. S. de
700 1 $aBOTELHO, C. E.
773 $tCiência e Agrotecnologia$gv. 44, e001120, 2020.
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Embrapa Café (CNPCa) |
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