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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
08/02/2013 |
Data da última atualização: |
19/02/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
VIEIRA, F. de A.; FAJARDO, C. G.; SOUZA, A. M. de; REIS, C. A. F.; CARVALHO, D. de. |
Afiliação: |
Fábio de Almeida Vieira, UFRN; Cristiane Gouvêa Fajardo, UFRN; Anderson Marcos de Souza, UnB; CRISTIANE APARECIDA FIORAVANTE REIS, CNPF; Dulcinéia de Carvalho, UFLA. |
Título: |
Fine-scale genetic dynamics of a dominant neotropical tree in the threatened Brazilian Atlantic Rainforest. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Tree Genetics & Genomes, v. 8, p. 1191-1201, 2012. |
Idioma: |
Inglês |
Conteúdo: |
We present a case study of the relationship between spatial genetic structure (SGS) and age structure in Protium spruceanum (Burseraceae), an insect-pollinated, mass-fruiting, and secondary bird-dispersed tree, as determined through variation in allozyme loci. Using ten polymorphic loci, we investigated spatial and temporal patterns of a genetic structure within a 40 m×60 m plot in a small (1.0 ha) fragment of Atlantic Rainforest to investigate the processes shaping the distribution of genetic diversity. Individuals (n0345) from seedlings to adults were grouped and analyzed in four diameter classes. The results showed a high average level of genetic diversity (He00.438), but genetic diversity parameters did not vary significantly among cohorts. The spatial distribution pattern analysis of individuals showed significant levels of aggregation among small- and medium-diameter classes and random distribution among the highest diameter class, likely due to processes of competitive thinning. There was an association between demographic and SGS at short distances (less than 10 m) which is likely the consequence of restricted seed dispersal. The degree of SGS decreased across small- to large-diameter classes.We inferred that limited seed dispersal and subsequent density-dependent mortality from the family clusters are responsible for the observed changes in fine-scale SGS across different demographic classes. |
Palavras-Chave: |
Banco de semente; Diversidade genética; Protium spruceanum. |
Thesagro: |
Burseraceae; Inseto Polinizador. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02104naa a2200229 a 4500 001 1948921 005 2015-02-19 008 2012 bl uuuu u00u1 u #d 100 1 $aVIEIRA, F. de A. 245 $aFine-scale genetic dynamics of a dominant neotropical tree in the threatened Brazilian Atlantic Rainforest. 260 $c2012 520 $aWe present a case study of the relationship between spatial genetic structure (SGS) and age structure in Protium spruceanum (Burseraceae), an insect-pollinated, mass-fruiting, and secondary bird-dispersed tree, as determined through variation in allozyme loci. Using ten polymorphic loci, we investigated spatial and temporal patterns of a genetic structure within a 40 m×60 m plot in a small (1.0 ha) fragment of Atlantic Rainforest to investigate the processes shaping the distribution of genetic diversity. Individuals (n0345) from seedlings to adults were grouped and analyzed in four diameter classes. The results showed a high average level of genetic diversity (He00.438), but genetic diversity parameters did not vary significantly among cohorts. The spatial distribution pattern analysis of individuals showed significant levels of aggregation among small- and medium-diameter classes and random distribution among the highest diameter class, likely due to processes of competitive thinning. There was an association between demographic and SGS at short distances (less than 10 m) which is likely the consequence of restricted seed dispersal. The degree of SGS decreased across small- to large-diameter classes.We inferred that limited seed dispersal and subsequent density-dependent mortality from the family clusters are responsible for the observed changes in fine-scale SGS across different demographic classes. 650 $aBurseraceae 650 $aInseto Polinizador 653 $aBanco de semente 653 $aDiversidade genética 653 $aProtium spruceanum 700 1 $aFAJARDO, C. G. 700 1 $aSOUZA, A. M. de 700 1 $aREIS, C. A. F. 700 1 $aCARVALHO, D. de 773 $tTree Genetics & Genomes$gv. 8, p. 1191-1201, 2012.
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Embrapa Florestas (CNPF) |
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 | 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: |
07/07/1997 |
Data da última atualização: |
06/12/2022 |
Autoria: |
YONEMA, S.; STEIN, R. L. B. |
Afiliação: |
SHINGO YONEYAMA, TSUKUBA INTERNATIONAL AGRICULTURAL TRAINING CENTER; RUTH LINDA BENCHIMOL, CPATU. |
Título: |
The ecology anal control of witches'in cupuacu trees in Brazil. 2. Inhibition of basidiocarps formation by chemical spraying. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Proceedings of the Kanto-Tosan Plant Protection Society, v. 42, p. 95-96, 1995. |
Idioma: |
Japonês |
Palavras-Chave: |
Brasil. |
Thesagro: |
Controle Químico; Crinipellis Perniciosa; Cupuaçu; Doença; Fruta; Fungo; Theobroma Grandiflorum; Vassoura de Bruxa. |
Thesaurus NAL: |
Amazonia; chemical control; disease control; fruits; fungi. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00860naa a2200289 a 4500 001 1397645 005 2022-12-06 008 1995 bl uuuu u00u1 u #d 100 1 $aYONEMA, S. 245 $aThe ecology anal control of witches'in cupuacu trees in Brazil. 2. Inhibition of basidiocarps formation by chemical spraying.$h[electronic resource] 260 $c1995 650 $aAmazonia 650 $achemical control 650 $adisease control 650 $afruits 650 $afungi 650 $aControle Químico 650 $aCrinipellis Perniciosa 650 $aCupuaçu 650 $aDoença 650 $aFruta 650 $aFungo 650 $aTheobroma Grandiflorum 650 $aVassoura de Bruxa 653 $aBrasil 700 1 $aSTEIN, R. L. B. 773 $tProceedings of the Kanto-Tosan Plant Protection Society$gv. 42, p. 95-96, 1995.
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