| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
20/04/2010 |
|
Data da última atualização: |
24/03/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ASSIS, J. B. de; LAAT, D. M. de; PEIXOTO, M. G. C. D.; BERGMANN, J. A. G.; FONSECA, C. G.; CARVALHO, M. R. S. |
|
Afiliação: |
J. B. DE ASSIS, UFMG; D. M. DE LAAT, UFMG; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; JOSÉ AURÉLIO GARCIA BERGMANN, UFMG; C. G. FONSECA, UFMG; M. R. S. CARVALHO, UFMG. |
|
Título: |
Genetic diversity and population structure in Brazilian Mangalarga Marchador horses. |
|
Ano de publicação: |
2009 |
|
Fonte/Imprenta: |
Genetics and Molecular Research, v. 8, n. 4, p. 1519-1524, 2009. |
|
DOI: |
https://doi.org/10.4238/vol8-4gmr647 |
|
Idioma: |
Inglês |
|
Conteúdo: |
One hundred and fifteen unrelated Mangalarga Marchador horses were sampled from three geographically distinct regions of Minas Gerais State, Brazil (South, Southeast, and Northeast) and tested for 10 microsatellite loci. Genetic diversity and population structure parameters were estimated with ARLEQUIN 3.0, CERVUS 2.0, POPGENE 1.31, GENEPOP on the web, STRUCTURE 2.0, and SPAGEDI 1.2 software packages. Under Hardy-Weinberg assumptions, seven markers were at equilibrium (LEX014, LEX017, LEX019, SGCV23, TKY321, VHL20, and VIASH39), while two (ASB3 and LEX031) presented significant homozygote excess. Seventy-four alleles were identified in these nine markers, with a mean of 8.22 alleles. Mean heterozygosity was 0.637 and polymorphism information content was 0.662. Markers ASB3, LEX019, SGCV23, TKY321, and VHL20 were highly informative (PIC >0.7) and may be useful for eventual expansion of parentage test panels. The F(ST) value (0.0562) indicated relatively little geographical structure. However, based on a Bayesian-based cluster analysis under a three-cluster model, 94% of the 115 individuals were correctly assigned to the subpopulations from where they were sampled. Mean pairwise f was relatively high (0.11), and in spite of the efforts towards non-consanguineous sampling, 1% of the pairs of individuals shared over 50% of the alleles. These results strongly suggest that the population is genetically structured. Under a conservation genetics approach, two strategies are recommended: avoidance of crosses between highly endogamic individuals and stimulation of crosses between individuals from those regions for which low genetic flow was identified. MenosOne hundred and fifteen unrelated Mangalarga Marchador horses were sampled from three geographically distinct regions of Minas Gerais State, Brazil (South, Southeast, and Northeast) and tested for 10 microsatellite loci. Genetic diversity and population structure parameters were estimated with ARLEQUIN 3.0, CERVUS 2.0, POPGENE 1.31, GENEPOP on the web, STRUCTURE 2.0, and SPAGEDI 1.2 software packages. Under Hardy-Weinberg assumptions, seven markers were at equilibrium (LEX014, LEX017, LEX019, SGCV23, TKY321, VHL20, and VIASH39), while two (ASB3 and LEX031) presented significant homozygote excess. Seventy-four alleles were identified in these nine markers, with a mean of 8.22 alleles. Mean heterozygosity was 0.637 and polymorphism information content was 0.662. Markers ASB3, LEX019, SGCV23, TKY321, and VHL20 were highly informative (PIC >0.7) and may be useful for eventual expansion of parentage test panels. The F(ST) value (0.0562) indicated relatively little geographical structure. However, based on a Bayesian-based cluster analysis under a three-cluster model, 94% of the 115 individuals were correctly assigned to the subpopulations from where they were sampled. Mean pairwise f was relatively high (0.11), and in spite of the efforts towards non-consanguineous sampling, 1% of the pairs of individuals shared over 50% of the alleles. These results strongly suggest that the population is genetically structured. Under a conservation genetics approach, two strategies are recommen... Mostrar Tudo |
|
Palavras-Chave: |
Genetic diversity; Mangalarga Marhador horse; Popular genetic structure. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/697088/1/Genetic-diversity-and-population.pdf
|
|
Marc: |
LEADER 02414naa a2200229 a 4500
001 1697088
005 2023-03-24
008 2009 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.4238/vol8-4gmr647$2DOI
100 1 $aASSIS, J. B. de
245 $aGenetic diversity and population structure in Brazilian Mangalarga Marchador horses.$h[electronic resource]
260 $c2009
520 $aOne hundred and fifteen unrelated Mangalarga Marchador horses were sampled from three geographically distinct regions of Minas Gerais State, Brazil (South, Southeast, and Northeast) and tested for 10 microsatellite loci. Genetic diversity and population structure parameters were estimated with ARLEQUIN 3.0, CERVUS 2.0, POPGENE 1.31, GENEPOP on the web, STRUCTURE 2.0, and SPAGEDI 1.2 software packages. Under Hardy-Weinberg assumptions, seven markers were at equilibrium (LEX014, LEX017, LEX019, SGCV23, TKY321, VHL20, and VIASH39), while two (ASB3 and LEX031) presented significant homozygote excess. Seventy-four alleles were identified in these nine markers, with a mean of 8.22 alleles. Mean heterozygosity was 0.637 and polymorphism information content was 0.662. Markers ASB3, LEX019, SGCV23, TKY321, and VHL20 were highly informative (PIC >0.7) and may be useful for eventual expansion of parentage test panels. The F(ST) value (0.0562) indicated relatively little geographical structure. However, based on a Bayesian-based cluster analysis under a three-cluster model, 94% of the 115 individuals were correctly assigned to the subpopulations from where they were sampled. Mean pairwise f was relatively high (0.11), and in spite of the efforts towards non-consanguineous sampling, 1% of the pairs of individuals shared over 50% of the alleles. These results strongly suggest that the population is genetically structured. Under a conservation genetics approach, two strategies are recommended: avoidance of crosses between highly endogamic individuals and stimulation of crosses between individuals from those regions for which low genetic flow was identified.
653 $aGenetic diversity
653 $aMangalarga Marhador horse
653 $aPopular genetic structure
700 1 $aLAAT, D. M. de
700 1 $aPEIXOTO, M. G. C. D.
700 1 $aBERGMANN, J. A. G.
700 1 $aFONSECA, C. G.
700 1 $aCARVALHO, M. R. S.
773 $tGenetics and Molecular Research$gv. 8, n. 4, p. 1519-1524, 2009.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
24/02/2015 |
|
Data da última atualização: |
11/09/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
MORAES, M. T. de; SILVA, V. R. da; CHERUBIN, M. R.; CARLESSO, R.; DEBIASI, H.; LEVIEN, R. |
|
Afiliação: |
MOACIR TUZZIN DE MORAES, UFRGS; Vanderlei Rodrigues da Silva, UFSM; Maurício Roberto Cherubin, UNESP; Reimar Carlesso, UFMS; HENRIQUE DEBIASI, CNPSO; Renato Levien, UFRGS. |
|
Título: |
Charges in a rhodic hapludox under no-tillage and urban wast compost in the northwest of Rio Grande do Sul, Brazil. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 38, N. 4, p. 1327-1336, Jul./Aug. 2014. |
|
ISSN: |
0100-0683 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The use of urban waste compost as nutrient source in agriculture has been a subject of investigation in Brazil and elsewhere, although the effects on soil physical and chemical properties and processes are still poorly known. The aim of this study was to evaluate the effect of application of urban waste compost and mineral fertilizer on soil aggregate stability and organic carbon and total nitrogen content of a Rhodic Hapludox under no-tillage in the northwestern region of Rio Grande do Sul, Brazil, in the 2009/2010 and 2010/2011 growing seasons. The experiment was arranged in a 2 × 6 (seasons and fertilization) factorial in a randomized complete block design with four replications. The factor time consisted of two growing seasons (sunflower in 2009/10 and maize in 2010/11) and the factor fertilization of five rates of urban waste compost (0, 25, 50, 75 and 100 m3 ha-1), and mineral fertilizer. Soil samples were collected from the 0.0-0.10 m layer to determine aggregate stability (mean weight and geometric diameter), soil organic carbon (SOC) and total nitrogen (TN). Rates of up to 75 m3 ha-1 of urban waste compost, after two years of application to no-tillage maize and sunflower, improved aggregation compared to mineral fertilization in a Rhodic Hapludox. After the second crop, the SOC and TN contents increased linearly with the levels of urban waste compost. |
|
Palavras-Chave: |
Brasil. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118596/1/28.pdf
|
|
Marc: |
LEADER 02040naa a2200205 a 4500
001 2009630
005 2017-09-11
008 2014 bl uuuu u00u1 u #d
022 $a0100-0683
100 1 $aMORAES, M. T. de
245 $aCharges in a rhodic hapludox under no-tillage and urban wast compost in the northwest of Rio Grande do Sul, Brazil.$h[electronic resource]
260 $c2014
520 $aThe use of urban waste compost as nutrient source in agriculture has been a subject of investigation in Brazil and elsewhere, although the effects on soil physical and chemical properties and processes are still poorly known. The aim of this study was to evaluate the effect of application of urban waste compost and mineral fertilizer on soil aggregate stability and organic carbon and total nitrogen content of a Rhodic Hapludox under no-tillage in the northwestern region of Rio Grande do Sul, Brazil, in the 2009/2010 and 2010/2011 growing seasons. The experiment was arranged in a 2 × 6 (seasons and fertilization) factorial in a randomized complete block design with four replications. The factor time consisted of two growing seasons (sunflower in 2009/10 and maize in 2010/11) and the factor fertilization of five rates of urban waste compost (0, 25, 50, 75 and 100 m3 ha-1), and mineral fertilizer. Soil samples were collected from the 0.0-0.10 m layer to determine aggregate stability (mean weight and geometric diameter), soil organic carbon (SOC) and total nitrogen (TN). Rates of up to 75 m3 ha-1 of urban waste compost, after two years of application to no-tillage maize and sunflower, improved aggregation compared to mineral fertilization in a Rhodic Hapludox. After the second crop, the SOC and TN contents increased linearly with the levels of urban waste compost.
653 $aBrasil
700 1 $aSILVA, V. R. da
700 1 $aCHERUBIN, M. R.
700 1 $aCARLESSO, R.
700 1 $aDEBIASI, H.
700 1 $aLEVIEN, R.
773 $tRevista Brasileira de Ciência do Solo, Viçosa, MG$gv. 38, N. 4, p. 1327-1336, Jul./Aug. 2014.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
