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| Registros recuperados : 31 | |
| Registros recuperados : 31 | |
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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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Circulação/Nível: |
B - 2 |
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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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