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Registros recuperados: 11
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Contemporary pollen and seed dispersal in natural populations of Bertholletia excelsa (Bonpl.) Repositório Alice
BALDONI, A. B.; WADT, L. H. O.; CAMPOS, T.; SILVA, V. S.; AZEVEDO, V. C. R.; MATA, L. R.; BOTIN, A. A.; MENDES, N. O.; TARDIN, F. D.; TONINI, H.; HOOGERHEIDE, E. S. S.; SEBBENN, A. M..
Due to the nutritional content and commercial value of its seeds, Bertholletia excelsa is one of the most important species exploited in the Amazon region. The species is hermaphroditic, insect pollinated, and its seeds are dispersed by barochory and animals. Because the fruit set is dependent on natural pollinator activity, gene flow plays a key role in fruit production. However, to date, there have been no studies on pollen and seed flow in natural populations of B. excelsa. Herein, we used microsatellite loci and parentage analysis to investigate the spatial genetic structure (SGS), realized pollen and seed dispersal, and effective pollen dispersal for two B. excelsa populations in the Brazilian Amazon forest. Two plots were established in natural...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Conservation genetics; Genética de conservação; Genética populacional; Fluxo de genes; Árvore tropical; Endogamia; Método de melhoramento; Polinização; Dispersão de semente; Population genetics; Gene flow.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1076089
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Genetic characterization of the Moxotó goat breed using RAPD markers. Repositório Alice
OLIVEIRA, R.R. de; EGITO, A.A. do; RIBEIRO, M.N.; PAIVA, S.R.; ALBUQUERQUE, M. do S.M.; CASTRO, S.R.; MARIANTE, A. da S.; ADRIÃO, M..
The objective of this study was to verify the genetic diversity between and within seven populations of Moxotó goat (n = 264) from the States of Pernambuco, Paraíba and Rio Grande do Norte, using RAPD (Random Amplified Polymorphic DNA). Moxotó, as well as other naturalized breeds, suffers genetic losses due to the indiscriminate miscegenation with breeds raised in the Northeast Region of Brazil. The genetic characterization of these genetic resources is essential to conservation and breeding programs. DNA was extracted from lymphocytes using a non-organic protocol. The 16 primers used were selected from 120 decamer oligonucleotide primers and generated 56 polymorphic bands. The analysis of molecular variance (AMOVA) showed that the greater part of total...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Capra hircus; Native breeds; Population structure; Conservation genetics; Raças nativas; Estrutura de populações; Conservação genética.
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/handle/doc/113875
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Genetic differentiation in Aspidosperma polyneuron (Apocynaceae) over a short geographic distance as assessed by AFLP markers. Repositório Alice
DAMASCENO, J. O; RUAS, E. A.; RODRIGUES, L. A.; RUAS, C. F.; BIANCHINI, E.; PIMENTA, J. A.; RUAS, P. M..
Studies on intraspecific variation can contribute to the development of conservation strategies by identifying units of conservation for threatened species. Aspidosperma polyneuron is a tropical tree of seasonal semideciduous forests that is currently endangered and protected because it has been heavily logged for lumber, although it was once common in Brazil and neighboring countries. We investigated genetic structure in two samples of A. polyneuron collected from steep hillsides and from flat areas of a natural forest fragment in northern Paraná State, Brazil.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Genética da conservação; AFLPs; Variabilidade genética; Fragmento de floresta tropical; Conservation genetics; Genetic variability; Tropical forest fragment.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/950260
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Genetic variability in local Brazilian horse lines using microsatellite markers. Repositório Alice
SILVA, A. C. M.; PAIVA, S. R.; ALBUQUERQUE, M. S. M.; EGITO, A. A. do; SANTOS, S. A.; LIMA, F. C.; CASTRO, S. T.; MARIANTE, A. da S.; CORREA, P. S.; MCMANUS, C. M..
Genetic variability at 11 microsatellite markers was analyzed in five naturalized/local Brazilian horse breeds or genetic groups. Blood samples were collected from 328 animals of the breeds Campeira (Santa Catarina State), Lavradeira (Roraima State), Pantaneira (Pantanal Mato-Grossense), Mangalarga Marchador (Minas Gerais State), as well as the genetic group Baixadeiro (Maranhão State), and the exotic breeds English Thoroughbred and Arab. We found significant genetic variability within evaluated microsatellite loci, with observed heterozygosis varying between 0.426 and 0.768 and polymorphism information content values of 0.751 to 0.914. All breeds showed high inbreeding coefficients and were not in Hardy-Weinberg equilibrium. The smallest genetic distance...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Animal genetic resources; Conservation genetics; Equus caballus; Livestock; Molecular markers.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/931531
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Genetic variability of the Brazilian hair sheep breeds. Repositório Alice
PAIVA, S.R.; SILVÉRIO, V.C.; EGITO, A.A.; McMANUS, C.; FARIA, D.A.; MARIANTE, A. da S.; CASTRO, S.R.; ALBUQUERQUE, M. do S.M.; DERGAM, J.A..
The objectives of this work were to investigate the genetic structure of the Brazilian hair sheep breeds and to determine the origin of the Santa Inês breed. Molecular similarity was determined using Randomly Amplified Polymorphic DNA - Polymerase Chain Reaction markers in 238 individuals from five naturalized sheep breeds: Santa Inês (48 animals), Rabo Largo (48), Somali (48), Morada Nova (48) and Bergamasca (46), collected in Goiás, Sergipe, Bahia, and Ceará States as well as in the Federal District. Fifty-four loci were selected from 19 primers, after a pilot test using 140 primers. Qualitative analyses indicate diagnostic markers for all breeds. All breeds were significantly different from each other. Interbreed differences were explained by 14.92% of...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Ovis aries; Conservation genetics; Domestic animal diversity; Molecular markers; RAPD; Genética da conservação; Diversidade de animais domésticos; Marcadores moleculares.
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/handle/doc/116472
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Iberian origin of Brazilian local pig breeds based on Cytochrome b (MT-CYB) sequence. Repositório Alice
SOUZA, C. A.; PAIVA, S. R.; PEREIRA, R. W.; GUIMARÃES, S. E. F.; DUTRA JUNIOR, W. M.; MURATA, L. S.; MARIANTE, A. da S..
bitstream/item/178629/1/SP-19910-ID-32667.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Conservation genetics; Livestock evolution; MtDNA; Sus scrofa; Genetic resources.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/783701
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Landscape genomic approach to detect selection signatures in locally adapted Brazilian swine genetic groups. Repositório Alice
CESCONETO, R. J.; JOOST, S.; MCMANUS, C. M.; PAIVA, S. R.; COBUCI, J. A.; BRACCINI, J..
bitstream/item/171097/1/ECE3-7-9544.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Animal genetic resources; Conservation genetics; Molecular markers; Population structure; Sus scrofa.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085451
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Situação atual do banco de DNA de recursos genéticos animais no Brasil. Repositório Alice
EGITO, A. A.; ALBUQUERQUE, M. S. M.; CASTRO, S. T. R.; PAIVA, S. R.; MARQUES, J. R. F.; MCMANUS, C.; MARIANTE, A. S.; ABREU, U. P. G.; SANTOS, S. A.; SERENO, J. R.; FIORAVANTI, M. C. S.; VAZ, C. M.; NOBRE, F. V.; OLIVEIRA, J. V.; CARVALHO, J. H. de; COSTA, M. R.; RIBEIRO, M. N.; LARA, M. A..
2005
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Banco de DNA; Genética da conservação; DNA bank; Conservation genetics; Brasil; Brazil..
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/handle/doc/576867
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Situação atual do banco de DNA de recursos genéticos animais no Brasil. Repositório Alice
EGITO, A. A.; ALBUQUERQUE, M. S. M.; CASTRO, S. T. R.; PAIVA, S. R.; MARQUES, J. R. F.; MCMANUS, C.; MARIANTE, A. S.; ABREU, U. P. G.; SANTOS, S. A.; SERENO, J. R.; FIORAVANTI, M. C. S.; VAZ, C. M.; NOBRE, F. V.; OLIVEIRA, J. V.; CARVALHO, J. H. de; COSTA, M. R.; RIBEIRO, M. N.; LARA, M. A..
bitstream/item/178072/1/ID-27800-1.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Banco de DNA; Genética da conservação; DNA bank; Conservation genetics; Brasil; Brazil.
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/188258
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The Influence of the Academic Conservation Biology Literature on Endangered Species Recovery Planning Ecology and Society
Stinchcombe, John; Brown University; John_Stinchcombe@brown.edu; Moyle, Leonie C; Duke University, Biology Department; lcm6@duke.edu; Hudgens, Brian R; Duke University, Biology Department;; Bloch, Philip L; ;; Chinnadurai, Sathya; ;; Morris, William F; ;.
Despite the volume of the academic conservation biology literature, there is little evidence as to what effect this work is having on endangered species recovery efforts. Using data collected from a national review of 136 endangered and threatened species recovery plans, we evaluated whether recovery plans were changing in response to publication trends in four areas of the academic conservation biology literature: metapopulation dynamics, population viability analysis, conservation corridors, and conservation genetics. We detected several changes in recovery plans in apparent response to publication trends in these areas (e.g., the number of tasks designed to promote the recovery of an endangered species shifted, although these tasks were rarely assigned...
Tipo: Peer-Reviewed Reports Palavras-chave: Conservation biology; Conservation corridors; Conservation genetics; Endangered species; Endangered Species Act; Influential papers; Population Viability Analysis; PVA; Recovery plans.
Ano: 2002
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When physical oceanography meets population genetics: The case study of the genetic/evolutionary discontinuity in the endangered goliath grouper (Epinephelus itajara, Perciformes: Epinephelidae) with comments on the conservation of the species ArchiMer
Benevides, E. A.; Vallinoto, M. N. S.; Fetter Filho, A. F. H.; De Souza, J. R. B.; Silva-oliveira, G.; Freitas, M. O.; Ferreira, B. P.; Hostim-silva, M.; Bertoncini, A. A.; Blanchard, Fabian; Torres, R. A..
Epinephelus itajara is one of the marine fish species most threatened for extinction and it is considered to be "critically endangered" by the IUCN. The present study evaluated the genetic diversity of the species and the genetic/evolutionary relationships of its populations along the Atlantic coast of South America. The results indicate relatively reduced genetic variation, re-emphasizing the low adaptive potential of the species. One of the populations presented relatively high degrees of genetic diversity and it is evolutionary isolated from the all other populations. The evidences indicate the existence of two Evolutionarily Significant Units comprising E. itajara in the Atlantic coast of South America and the conservation prospects for the species...
Tipo: Text Palavras-chave: Epinephelus itajara; ISSRs; Population genetics; Conservation genetics.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00230/34100/34465.pdf
Registros recuperados: 11
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