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Registro Completo |
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
02/04/2021 |
Data da última atualização: |
14/06/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
THOMAS, E.; JANSEN, M.; CHIRIBOGA-ARROYO, F.; WADT, L. H. de O.; CORVERA-GOMRINGER, R.; ATKINSON, R. J.; BONSER, S. P.; VELASQUEZ-RAMIREZ, M. G.; LADD, B. |
Afiliação: |
EVERT THOMAS, Bioversity International, Lima, Peru; MEREL JANSEN, Institute of Terrestrial Ecosystems, Ecosystem Management, ETH Zürich / CIFOR, Lima, Peru; FIDEL CHIRIBOGA-ARROYO, Institute of Terrestrial Ecosystems, Ecosystem Management, ETH Zürich, Zurich, Switzerland; LUCIA HELENA DE OLIVEIRA WADT, CPAF-RO; RONALD CORVERA-GOMRINGER, Instituto de Investigaciones de la Amazonia Peruana – IIAP, Puerto Maldonado, Peru; RACHEL JUDITH ATKINSON, Bioversity International, Lima, Peru; STEPHEN P. BONSER, University of New South Wales, Sydney, NSW, Australia; MANUEL GABRIEL VELASQUEZ-RAMIREZ, Instituto de Investigaciones de la Amazonia Peruana – IIAP, Puerto Maldonado, Peru; BRENTON LADD, Escuela de Agroforestería, Universidad Científica del Sur, Lima, Peru. |
Título: |
Habitat quality differentiation and consequences for ecosystem service provision of an amazonian hyperdominant tree species. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Frontiers in Plant Science, v. 12, 621064, Mar. 2021. |
ISSN: |
1664-462X |
DOI: |
https://doi.org/10.3389/fpls.2021.621064 |
Idioma: |
Inglês |
Conteúdo: |
Ecosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB accumulation in a given area of forest, this is not necessarily the case for fruit production. MenosEcosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB... Mostrar Tudo |
Palavras-Chave: |
Biomassa aérea; Castanha do brasil; Environmental gradients; Espécies hiperdominantes; Gradiente ambiental; Growth differentiation balance framework; Hyperdominant tree species; Janzen-Connell hypothesis; Negative density dependence (NDD); Sequestro de carbono; Serviços ecossistêmicos. |
Thesagro: |
Bertholletia Excelsa; Castanha do Para; Essência Florestal; Produção de Sementes. |
Thesaurus Nal: |
Aboveground biomass; Brazil nuts; Carbon sequestration; Ecosystem services; Forest trees; Seedling production. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222313/1/cpafro-18543.pdf
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Marc: |
LEADER 03169naa a2200493 a 4500 001 2131025 005 2021-06-14 008 2021 bl uuuu u00u1 u #d 022 $a1664-462X 024 7 $ahttps://doi.org/10.3389/fpls.2021.621064$2DOI 100 1 $aTHOMAS, E. 245 $aHabitat quality differentiation and consequences for ecosystem service provision of an amazonian hyperdominant tree species.$h[electronic resource] 260 $c2021 520 $aEcosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB accumulation in a given area of forest, this is not necessarily the case for fruit production. 650 $aAboveground biomass 650 $aBrazil nuts 650 $aCarbon sequestration 650 $aEcosystem services 650 $aForest trees 650 $aSeedling production 650 $aBertholletia Excelsa 650 $aCastanha do Para 650 $aEssência Florestal 650 $aProdução de Sementes 653 $aBiomassa aérea 653 $aCastanha do brasil 653 $aEnvironmental gradients 653 $aEspécies hiperdominantes 653 $aGradiente ambiental 653 $aGrowth differentiation balance framework 653 $aHyperdominant tree species 653 $aJanzen-Connell hypothesis 653 $aNegative density dependence (NDD) 653 $aSequestro de carbono 653 $aServiços ecossistêmicos 700 1 $aJANSEN, M. 700 1 $aCHIRIBOGA-ARROYO, F. 700 1 $aWADT, L. H. de O. 700 1 $aCORVERA-GOMRINGER, R. 700 1 $aATKINSON, R. J. 700 1 $aBONSER, S. P. 700 1 $aVELASQUEZ-RAMIREZ, M. G. 700 1 $aLADD, B. 773 $tFrontiers in Plant Science$gv. 12, 621064, Mar. 2021.
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Embrapa Rondônia (CPAF-RO) |
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Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
07/04/2004 |
Data da última atualização: |
27/07/2007 |
Autoria: |
SÁ, M. E. L. de; BOTHONA, C. A.; BERNARDELI, K.; MORO, G. L.; SILVA, H. D.; ARANTES, N. E.; GOULART, L. R.; FRONZA, V. |
Título: |
Microsatellite markers linked to soybean cyst nematode resistance, race e, in a cross between two Brazilian cultivars. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. |
Páginas: |
p. 319. |
Série: |
(Embrapa Soja. Documentos, 228).
|
Idioma: |
Inglês |
Notas: |
Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
|
Conteúdo: |
The identification of QTLs associated with SCN resistance would be useful in breeding programs using marker-assisted selection, speeding up the selection and eliminating the environmental effect. Microsatellites markers (SSR) have been presented as a powerful tool due to their efficiency, automation capability and low cost. The objective of this work was to identify SSR markers associated with QTLs for resistance to SCN, race 3. The study was based on 88 F2:3 families derived from a cross of two Brazilian soybean cultivars: BRSMG Segurança (susceptible) x BRSMG Liderança (resistant). SCN bioassays were performed under greenhouse conditions and the plantlets were inoculated with 4000 eggs. The Female Index (FI) was used to evaluate the SCN reaction. Twenty-two polymorphic microsatellite markers (in a total of 313 markers) were used to construct the linkage map employing MAPMAKER software, using a minimum LOD score of 2.5 and a maximum distance of 50cM. The Cartographer program was used to detect markers linked to QTLs. After that the SAS GLM procedure was employed to analyze the association between four detected markers and the putative resistance loci by Single Mark Analysis. Two microsatellite markers, Satt309 (P<0.0001; R2=29.5%) and Sat163 (P<0.0001, R2=24.3%), were strongly linked to one QTL conferring SCN resistance. This locus is located in the molecular linkage group (MLG) G. Other two markers, Satt241 (P=0.0011; R2=16.3%) and Satt573 (P=0.0006; R2=16.7%), also revealed association with another SCN resistance locus, although they were reported as belonging to different MLGs. In both loci the resistance alleles were originated from the resistant parent. In the MLG G the SCN resistance alleles, race 3, were dominant, while in the other MLG they were recessive. A two-way ANOVA for the closer markers to both QTLs (Satt309 and Satt241) accounted for about 43% of the phenotypic variation in the SCN resistance, and showed only additive effect. The selection efficiency, using a FI cutoff equal to 10%, only for homozygous families, varied from 42.9% to 65.0% when compared with the phenotypic selection. MenosThe identification of QTLs associated with SCN resistance would be useful in breeding programs using marker-assisted selection, speeding up the selection and eliminating the environmental effect. Microsatellites markers (SSR) have been presented as a powerful tool due to their efficiency, automation capability and low cost. The objective of this work was to identify SSR markers associated with QTLs for resistance to SCN, race 3. The study was based on 88 F2:3 families derived from a cross of two Brazilian soybean cultivars: BRSMG Segurança (susceptible) x BRSMG Liderança (resistant). SCN bioassays were performed under greenhouse conditions and the plantlets were inoculated with 4000 eggs. The Female Index (FI) was used to evaluate the SCN reaction. Twenty-two polymorphic microsatellite markers (in a total of 313 markers) were used to construct the linkage map employing MAPMAKER software, using a minimum LOD score of 2.5 and a maximum distance of 50cM. The Cartographer program was used to detect markers linked to QTLs. After that the SAS GLM procedure was employed to analyze the association between four detected markers and the putative resistance loci by Single Mark Analysis. Two microsatellite markers, Satt309 (P<0.0001; R2=29.5%) and Sat163 (P<0.0001, R2=24.3%), were strongly linked to one QTL conferring SCN resistance. This locus is located in the molecular linkage group (MLG) G. Other two markers, Satt241 (P=0.0011; R2=16.3%) and Satt573 (P=0.0006; R2=16.7%), also reveal... Mostrar Tudo |
Categoria do assunto: |
-- |
Marc: |
LEADER 03202naa a2200241 a 4500 001 1466848 005 2007-07-27 008 2004 bl uuuu u00u1 u #d 100 1 $aSÁ, M. E. L. de 245 $aMicrosatellite markers linked to soybean cyst nematode resistance, race e, in a cross between two Brazilian cultivars. 260 $c2004 300 $ap. 319. 490 $a(Embrapa Soja. Documentos, 228). 500 $aEditado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi. 520 $aThe identification of QTLs associated with SCN resistance would be useful in breeding programs using marker-assisted selection, speeding up the selection and eliminating the environmental effect. Microsatellites markers (SSR) have been presented as a powerful tool due to their efficiency, automation capability and low cost. The objective of this work was to identify SSR markers associated with QTLs for resistance to SCN, race 3. The study was based on 88 F2:3 families derived from a cross of two Brazilian soybean cultivars: BRSMG Segurança (susceptible) x BRSMG Liderança (resistant). SCN bioassays were performed under greenhouse conditions and the plantlets were inoculated with 4000 eggs. The Female Index (FI) was used to evaluate the SCN reaction. Twenty-two polymorphic microsatellite markers (in a total of 313 markers) were used to construct the linkage map employing MAPMAKER software, using a minimum LOD score of 2.5 and a maximum distance of 50cM. The Cartographer program was used to detect markers linked to QTLs. After that the SAS GLM procedure was employed to analyze the association between four detected markers and the putative resistance loci by Single Mark Analysis. Two microsatellite markers, Satt309 (P<0.0001; R2=29.5%) and Sat163 (P<0.0001, R2=24.3%), were strongly linked to one QTL conferring SCN resistance. This locus is located in the molecular linkage group (MLG) G. Other two markers, Satt241 (P=0.0011; R2=16.3%) and Satt573 (P=0.0006; R2=16.7%), also revealed association with another SCN resistance locus, although they were reported as belonging to different MLGs. In both loci the resistance alleles were originated from the resistant parent. In the MLG G the SCN resistance alleles, race 3, were dominant, while in the other MLG they were recessive. A two-way ANOVA for the closer markers to both QTLs (Satt309 and Satt241) accounted for about 43% of the phenotypic variation in the SCN resistance, and showed only additive effect. The selection efficiency, using a FI cutoff equal to 10%, only for homozygous families, varied from 42.9% to 65.0% when compared with the phenotypic selection. 700 1 $aBOTHONA, C. A. 700 1 $aBERNARDELI, K. 700 1 $aMORO, G. L. 700 1 $aSILVA, H. D. 700 1 $aARANTES, N. E. 700 1 $aGOULART, L. R. 700 1 $aFRONZA, V. 773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
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