| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados; Embrapa Meio-Norte; Embrapa Semiárido. |
|
Data corrente: |
03/11/1999 |
|
Data da última atualização: |
26/08/2011 |
|
Autoria: |
MINAS LEITE, 1., 1999, Juiz de Fora. |
|
Título: |
Qualidade do leite e produtividade de rebanhos leiteiros: anais. |
|
Ano de publicação: |
1999 |
|
Fonte/Imprenta: |
Juiz de Fora: Embrapa Gado de Leite, 1999. |
|
Páginas: |
144 p. |
|
Idioma: |
Português |
|
Notas: |
Editado por: Carlos Eugenio Martins, Claudio Napolis Costa, Jose Renaldi Feitosa Brito, Luiz Carlos Takao Yamaguchi, Maria de Fatima Avila Pires, Marcus Cordeiro Duraes. |
|
Palavras-Chave: |
Agribusines; Agroindustrial complexes; Ambiencia; Celula somatica; Chain; Competitive; Competitividade; Environment factors; Management; Production; Quality. |
|
Thesagro: |
Agronegócio; Cadeia Produtiva; Gado Leiteiro; Genética Animal; Leite; Produção Leiteira; Qualidade. |
|
Thesaurus Nal: |
agribusiness; animals; dairy cattle; genetics; milk; milk production. |
|
Categoria do assunto: |
--
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 01215nam a2200409 a 4500
001 1559306
005 2011-08-26
008 1999 bl uuuu u01u1 u #d
100 1 $aMINAS LEITE, 1., 1999, Juiz de Fora.
245 $aQualidade do leite e produtividade de rebanhos leiteiros$banais.
260 $aJuiz de Fora: Embrapa Gado de Leite$c1999
300 $a144 p.
500 $aEditado por: Carlos Eugenio Martins, Claudio Napolis Costa, Jose Renaldi Feitosa Brito, Luiz Carlos Takao Yamaguchi, Maria de Fatima Avila Pires, Marcus Cordeiro Duraes.
650 $aagribusiness
650 $aanimals
650 $adairy cattle
650 $agenetics
650 $amilk
650 $amilk production
650 $aAgronegócio
650 $aCadeia Produtiva
650 $aGado Leiteiro
650 $aGenética Animal
650 $aLeite
650 $aProdução Leiteira
650 $aQualidade
653 $aAgribusines
653 $aAgroindustrial complexes
653 $aAmbiencia
653 $aCelula somatica
653 $aChain
653 $aCompetitive
653 $aCompetitividade
653 $aEnvironment factors
653 $aManagement
653 $aProduction
653 $aQuality
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
19/05/2015 |
|
Data da última atualização: |
31/05/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
ARRUDA, C. C. B.; SILVA, M. B.; SEBBENN, A. M.; KANASHIRO, M.; LEMES, M. R.; GRIBEL, R. |
|
Afiliação: |
C. C. B. Arruda, UFPA; M. B. Silva, UFPA; A. M. Sebbenn, INSTITUTO FLORESTAL DE SÃO PAULO; MILTON KANASHIRO, CPATU; M. R. Lemes, INPA / Instituto de Pesquisas Jardim Botânico do Rio de Janeiro; R. Gribel, INPA / Instituto de Pesquisas Jardim Botânico do Rio de Janeiro. |
|
Título: |
Mating system and genetic diversity of progenies before and after logging: a case study of Bagassa guianensis (Moraceae), a low-density dioecious tree of the Amazonian forest. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Tree Genetics & Genomes, v. 11, n. 1, Feb. 2015. |
|
DOI: |
10.1007/s11295-015-0837-2 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The logging of large trees in tropical forests causes a decrease in the density of reproductive individuals, which likely affects the pattern of pollen dispersal and the mating system of the remaining trees in the population. Here, we investigate the impact of logging on mating system and genetic diversity of the low-density, thrip-pollinated, dioecious tree Bagassa guianensis within a 500-ha plot at Tapajos National Forest, Para State, Brazil. Mating system parameters of the logged population were estimated using mixed-mating model. Six microsatellite loci were used to genotype 232 seeds from ten remnant female trees over three seasons (2006, 2007, and 2008). The data were compared with the mating system of the unlogged population of B. guianensis (18 female trees, 488 seeds) in the same plot. The overall number of alleles found in the open-pollinated progenies decreased after logging (K-71 before logging and K-57 after logging, considering the three after logging seasons pooled), as well as the average number of alleles per locus (A - 11.8 and 9.5, respectively). Similarly, the number of private alleles, which is defined in the context of this study as the number of alleles observed in the population exclusively before or after logging, also decreased after logging (15 and 1, respectively). However, the average number of alleles per locus and the observed and expected heterozygosities were not significantly higher before logging than after logging. Logging also did not affect the inbreeding of progenies in the population. Somewhat unexpectedly, the effective number of pollen donors was consistently higher after (N-ep = 14.5 in 2006, 8.1 in 2007, and 6.3 in 2008) than before logging (N-ep = 3.4), suggesting that the loss of alleles in the population was compensated by the higher heterogeneity in the pollen pool after the removal of the largest trees by logging. Potential causes explaining the patterns found here include the maintenance of large patches of forest around the logged plot and the species' ability to perform long-distance pollination by airborne thrips. Maintenance of landscape integrity as logged and unlogged forests around the exploited areas is recommended to enhance pollen migration and to avoid long-term losses in genetic diversity. MenosThe logging of large trees in tropical forests causes a decrease in the density of reproductive individuals, which likely affects the pattern of pollen dispersal and the mating system of the remaining trees in the population. Here, we investigate the impact of logging on mating system and genetic diversity of the low-density, thrip-pollinated, dioecious tree Bagassa guianensis within a 500-ha plot at Tapajos National Forest, Para State, Brazil. Mating system parameters of the logged population were estimated using mixed-mating model. Six microsatellite loci were used to genotype 232 seeds from ten remnant female trees over three seasons (2006, 2007, and 2008). The data were compared with the mating system of the unlogged population of B. guianensis (18 female trees, 488 seeds) in the same plot. The overall number of alleles found in the open-pollinated progenies decreased after logging (K-71 before logging and K-57 after logging, considering the three after logging seasons pooled), as well as the average number of alleles per locus (A - 11.8 and 9.5, respectively). Similarly, the number of private alleles, which is defined in the context of this study as the number of alleles observed in the population exclusively before or after logging, also decreased after logging (15 and 1, respectively). However, the average number of alleles per locus and the observed and expected heterozygosities were not significantly higher before logging than after logging. Logging also did not aff... Mostrar Tudo |
|
Palavras-Chave: |
Amazonian timber species; Diversidade genética; Microsatellite markers; Reducedimpact logging; Tapajós National Forest. |
|
Thesagro: |
Madeira; Tatajuba. |
|
Thesaurus NAL: |
Amazonia; forest management. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 03261naa a2200301 a 4500
001 2015674
005 2022-05-31
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1007/s11295-015-0837-2$2DOI
100 1 $aARRUDA, C. C. B.
245 $aMating system and genetic diversity of progenies before and after logging$ba case study of Bagassa guianensis (Moraceae), a low-density dioecious tree of the Amazonian forest.$h[electronic resource]
260 $c2015
520 $aThe logging of large trees in tropical forests causes a decrease in the density of reproductive individuals, which likely affects the pattern of pollen dispersal and the mating system of the remaining trees in the population. Here, we investigate the impact of logging on mating system and genetic diversity of the low-density, thrip-pollinated, dioecious tree Bagassa guianensis within a 500-ha plot at Tapajos National Forest, Para State, Brazil. Mating system parameters of the logged population were estimated using mixed-mating model. Six microsatellite loci were used to genotype 232 seeds from ten remnant female trees over three seasons (2006, 2007, and 2008). The data were compared with the mating system of the unlogged population of B. guianensis (18 female trees, 488 seeds) in the same plot. The overall number of alleles found in the open-pollinated progenies decreased after logging (K-71 before logging and K-57 after logging, considering the three after logging seasons pooled), as well as the average number of alleles per locus (A - 11.8 and 9.5, respectively). Similarly, the number of private alleles, which is defined in the context of this study as the number of alleles observed in the population exclusively before or after logging, also decreased after logging (15 and 1, respectively). However, the average number of alleles per locus and the observed and expected heterozygosities were not significantly higher before logging than after logging. Logging also did not affect the inbreeding of progenies in the population. Somewhat unexpectedly, the effective number of pollen donors was consistently higher after (N-ep = 14.5 in 2006, 8.1 in 2007, and 6.3 in 2008) than before logging (N-ep = 3.4), suggesting that the loss of alleles in the population was compensated by the higher heterogeneity in the pollen pool after the removal of the largest trees by logging. Potential causes explaining the patterns found here include the maintenance of large patches of forest around the logged plot and the species' ability to perform long-distance pollination by airborne thrips. Maintenance of landscape integrity as logged and unlogged forests around the exploited areas is recommended to enhance pollen migration and to avoid long-term losses in genetic diversity.
650 $aAmazonia
650 $aforest management
650 $aMadeira
650 $aTatajuba
653 $aAmazonian timber species
653 $aDiversidade genética
653 $aMicrosatellite markers
653 $aReducedimpact logging
653 $aTapajós National Forest
700 1 $aSILVA, M. B.
700 1 $aSEBBENN, A. M.
700 1 $aKANASHIRO, M.
700 1 $aLEMES, M. R.
700 1 $aGRIBEL, R.
773 $tTree Genetics & Genomes$gv. 11, n. 1, Feb. 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
