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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
02/01/2019 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NEGAWO, A. T.; JORGE, A.; HANSON, J.; TESHOME, A.; MUKTAR, M. S.; AZEVEDO, A. L. S.; LEDO, F. J. da S.; MACHADO, J. C.; JONES, C. S. |
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Afiliação: |
ALEMAYEHU T. NEGAWO; ALEXANDRA JORGE; JEAN HANSON; ABEL TESHOME; MEKI S. MUKTAR; ANA LUISA SOUSA AZEVEDO, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; JUAREZ CAMPOLINA MACHADO, CNPGL; CHRIS S. JONES. |
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Título: |
Molecular markers as a tool for germplasm acquisition to enhance the genetic diversity of a Napier grass (Cenchrus purpureus syn. Pennisetum purpureum) collection. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Tropical Grasslands - Forrajes Tropicales, v. 6, n. 2, p. 58-69, 2018. |
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DOI: |
doi.org/10.17138/tgft(6)58-69 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract At the International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia, 171 germplasm accessions of Napier grass were studied using 20 SSR markers with the objective of assessing the allelic richness and genetic diversity of the collections held at ILRI and the Brazilian Agricultural Research Corporation (EMBRAPA), and to determine distinct accessions to be introduced to enhance the diversity in each of the genebank collections. A total of 148 alleles were observed in the whole collection, of which 140 and 93 alleles were observed in the ILRI and EMBRAPA collections, respectively. Fifty-five and 8 alleles were found to be unique to the ILRI and EMBRAPA collections, respectively, while 85 alleles were shared between the collections. The number of alleles per marker ranged from 1 to 23 with an average value of 7.4 across both collections. The heterozygosity per locus ranged from 0.000 to 0.808 with an average value of 0.463. A principal coordinate analysis grouped accessions into 3 main groups, whereas a hierarchical cluster analysis indicated 4 main clusters. From a genebank management and conservation perspective, the marker profile of the accessions was used in the process of selecting and acquiring distinct lines to be added to the ILRI and EMBRAPA collections. Accordingly, 54 accessions and elite lines were selected and introduced from EMBRAPA to the ILRI collection, while 8 distinct accessions from ILRI were added to the EMBRAPA collection. In general, a useful marker profile of an expanded Napier grass collection has been generated which could be used to enhance the conservation, use and management of the available genetic resources of this important forage crop. MenosAbstract At the International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia, 171 germplasm accessions of Napier grass were studied using 20 SSR markers with the objective of assessing the allelic richness and genetic diversity of the collections held at ILRI and the Brazilian Agricultural Research Corporation (EMBRAPA), and to determine distinct accessions to be introduced to enhance the diversity in each of the genebank collections. A total of 148 alleles were observed in the whole collection, of which 140 and 93 alleles were observed in the ILRI and EMBRAPA collections, respectively. Fifty-five and 8 alleles were found to be unique to the ILRI and EMBRAPA collections, respectively, while 85 alleles were shared between the collections. The number of alleles per marker ranged from 1 to 23 with an average value of 7.4 across both collections. The heterozygosity per locus ranged from 0.000 to 0.808 with an average value of 0.463. A principal coordinate analysis grouped accessions into 3 main groups, whereas a hierarchical cluster analysis indicated 4 main clusters. From a genebank management and conservation perspective, the marker profile of the accessions was used in the process of selecting and acquiring distinct lines to be added to the ILRI and EMBRAPA collections. Accordingly, 54 accessions and elite lines were selected and introduced from EMBRAPA to the ILRI collection, while 8 distinct accessions from ILRI were added to the EMBRAPA collection. In general, ... Mostrar Tudo |
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Palavras-Chave: |
Conservation; Elephant grass; SSR. |
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Thesaurus Nal: |
Genetic resources. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189567/1/Artigo-TropGrassl-AnaLuisa-Molecular.pdf
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Marc: |
LEADER 02598naa a2200277 a 4500
001 2102745
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $adoi.org/10.17138/tgft(6)58-69$2DOI
100 1 $aNEGAWO, A. T.
245 $aMolecular markers as a tool for germplasm acquisition to enhance the genetic diversity of a Napier grass (Cenchrus purpureus syn. Pennisetum purpureum) collection.$h[electronic resource]
260 $c2018
520 $aAbstract At the International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia, 171 germplasm accessions of Napier grass were studied using 20 SSR markers with the objective of assessing the allelic richness and genetic diversity of the collections held at ILRI and the Brazilian Agricultural Research Corporation (EMBRAPA), and to determine distinct accessions to be introduced to enhance the diversity in each of the genebank collections. A total of 148 alleles were observed in the whole collection, of which 140 and 93 alleles were observed in the ILRI and EMBRAPA collections, respectively. Fifty-five and 8 alleles were found to be unique to the ILRI and EMBRAPA collections, respectively, while 85 alleles were shared between the collections. The number of alleles per marker ranged from 1 to 23 with an average value of 7.4 across both collections. The heterozygosity per locus ranged from 0.000 to 0.808 with an average value of 0.463. A principal coordinate analysis grouped accessions into 3 main groups, whereas a hierarchical cluster analysis indicated 4 main clusters. From a genebank management and conservation perspective, the marker profile of the accessions was used in the process of selecting and acquiring distinct lines to be added to the ILRI and EMBRAPA collections. Accordingly, 54 accessions and elite lines were selected and introduced from EMBRAPA to the ILRI collection, while 8 distinct accessions from ILRI were added to the EMBRAPA collection. In general, a useful marker profile of an expanded Napier grass collection has been generated which could be used to enhance the conservation, use and management of the available genetic resources of this important forage crop.
650 $aGenetic resources
653 $aConservation
653 $aElephant grass
653 $aSSR
700 1 $aJORGE, A.
700 1 $aHANSON, J.
700 1 $aTESHOME, A.
700 1 $aMUKTAR, M. S.
700 1 $aAZEVEDO, A. L. S.
700 1 $aLEDO, F. J. da S.
700 1 $aMACHADO, J. C.
700 1 $aJONES, C. S.
773 $tTropical Grasslands - Forrajes Tropicales$gv. 6, n. 2, p. 58-69, 2018.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
31/03/2011 |
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Data da última atualização: |
04/04/2011 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CASTRO, C. de; OLIVEIRA JUNIOR, A. de; OLIVEIRA, F. A. de; LEITE, R. M. V. B. de C.; MOREIRA, A.; ZOBIOLE, L. H. S. |
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Afiliação: |
CESAR DE CASTRO, CNPSO; ADILSON DE OLIVEIRA JUNIOR, CNPSO; FABIO ALVARES DE OLIVEIRA, CNPSO; REGINA MARIA VILLAS BOAS DE C LEITE, CNPSO; ADONIS MOREIRA, CNPSO; LUIZ HENRIQUE SAES ZOBIOLE, UEM. |
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Título: |
Macronutrient uptake rate of sunflower crop (Helianthus annuus L.). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: INTERNATIONAL ANNUAL MEETINGS, ASA, CSSA, and SSSA, 2010, Long Beach, CA. Abstracts... Madison: ASA: CSSA: SSSA, 2010. Green Revolution 2.0: Food + Energy and Environmental Security. |
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Páginas: |
Paper 61763 |
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Idioma: |
Inglês |
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Conteúdo: |
The study aimed to establish curves of macronutrients accumulation in sunflower crop. Thus, an experiment was conducted in field on Typic Hapludox, located at the experimental farm of Embrapa Soja in Londrina/PR. The plots consisted of 14 lines with 25 m length and 0.70 m width, resulting in a total area of 245 m2. Each plot was replicated four times. The fertilization seeding was 300 kg ha-1 of 05-20-20, before sowing. Fertilization was split in two applications of 25 + 1 kg ha-1 N and B, respectively, which the first application was applied at 21 and the second at 35 days after sowing. It was used the hybrid BRS-191 and the final plant density was 40.000 plants ha-1. Plant samples were collected at each interval of 14 days after emergence and share in different parts as petioles, leaves, stems and, when applicable, chapter and achenes. After drying, each plant part was weighed and ground in order to determine the content of N, P, K, Ca, Mg and S. From the levels of these nutrients and dry mass of each plant, it was obtained the curves of accumulation. It was found that for obtaining yield higher than 3000 kg ha-1, the hybrid BRS 191 drew about 150, 24, 286, 116, 42 and 24 kg ha-1 of N, P, K, Ca, Mg and S, respectively, showing a following order of extraction: K> N> Ca> P = S. In addition the relation to the exportation, the nutrients order was: N> P = K> S = Mg> Ca. Therefore, special attention should be given to keep adequate supply of N, K and Ca, due to high demand of these elements by sunflower crop. MenosThe study aimed to establish curves of macronutrients accumulation in sunflower crop. Thus, an experiment was conducted in field on Typic Hapludox, located at the experimental farm of Embrapa Soja in Londrina/PR. The plots consisted of 14 lines with 25 m length and 0.70 m width, resulting in a total area of 245 m2. Each plot was replicated four times. The fertilization seeding was 300 kg ha-1 of 05-20-20, before sowing. Fertilization was split in two applications of 25 + 1 kg ha-1 N and B, respectively, which the first application was applied at 21 and the second at 35 days after sowing. It was used the hybrid BRS-191 and the final plant density was 40.000 plants ha-1. Plant samples were collected at each interval of 14 days after emergence and share in different parts as petioles, leaves, stems and, when applicable, chapter and achenes. After drying, each plant part was weighed and ground in order to determine the content of N, P, K, Ca, Mg and S. From the levels of these nutrients and dry mass of each plant, it was obtained the curves of accumulation. It was found that for obtaining yield higher than 3000 kg ha-1, the hybrid BRS 191 drew about 150, 24, 286, 116, 42 and 24 kg ha-1 of N, P, K, Ca, Mg and S, respectively, showing a following order of extraction: K> N> Ca> P = S. In addition the relation to the exportation, the nutrients order was: N> P = K> S = Mg> Ca. Therefore, special attention should be given to keep adequate supply of N, K and Ca, due to high demand of t... Mostrar Tudo |
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Thesagro: |
Girassol. |
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Categoria do assunto: |
-- |
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URL: |
https://a-c-s.confex.com/crops/2010am/webprogram/Paper61763.html
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Marc: |
LEADER 02250naa a2200205 a 4500
001 1884364
005 2011-04-04
008 2010 bl uuuu u00u1 u #d
100 1 $aCASTRO, C. de
245 $aMacronutrient uptake rate of sunflower crop (Helianthus annuus L.).
260 $c2010
300 $aPaper 61763
520 $aThe study aimed to establish curves of macronutrients accumulation in sunflower crop. Thus, an experiment was conducted in field on Typic Hapludox, located at the experimental farm of Embrapa Soja in Londrina/PR. The plots consisted of 14 lines with 25 m length and 0.70 m width, resulting in a total area of 245 m2. Each plot was replicated four times. The fertilization seeding was 300 kg ha-1 of 05-20-20, before sowing. Fertilization was split in two applications of 25 + 1 kg ha-1 N and B, respectively, which the first application was applied at 21 and the second at 35 days after sowing. It was used the hybrid BRS-191 and the final plant density was 40.000 plants ha-1. Plant samples were collected at each interval of 14 days after emergence and share in different parts as petioles, leaves, stems and, when applicable, chapter and achenes. After drying, each plant part was weighed and ground in order to determine the content of N, P, K, Ca, Mg and S. From the levels of these nutrients and dry mass of each plant, it was obtained the curves of accumulation. It was found that for obtaining yield higher than 3000 kg ha-1, the hybrid BRS 191 drew about 150, 24, 286, 116, 42 and 24 kg ha-1 of N, P, K, Ca, Mg and S, respectively, showing a following order of extraction: K> N> Ca> P = S. In addition the relation to the exportation, the nutrients order was: N> P = K> S = Mg> Ca. Therefore, special attention should be given to keep adequate supply of N, K and Ca, due to high demand of these elements by sunflower crop.
650 $aGirassol
700 1 $aOLIVEIRA JUNIOR, A. de
700 1 $aOLIVEIRA, F. A. de
700 1 $aLEITE, R. M. V. B. de C.
700 1 $aMOREIRA, A.
700 1 $aZOBIOLE, L. H. S.
773 $tIn: INTERNATIONAL ANNUAL MEETINGS, ASA, CSSA, and SSSA, 2010, Long Beach, CA. Abstracts... Madison: ASA: CSSA: SSSA, 2010. Green Revolution 2.0: Food + Energy and Environmental Security.
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Embrapa Soja (CNPSO) |
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