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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
14/10/2010 |
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Data da última atualização: |
03/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROSADO, T. B.; LAVIOLA, B. G.; FARIA, D. A.; PAPPAS, M. de C. R.; BHERING, L. L.; QUIRINO, B. F.; GRATTAPAGLIA, D. |
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Afiliação: |
TATIANA BARBOSA ROSADO, CNPAE; BRUNO GALVEAS LAVIOLA, CNPAE; DANIELLE A. FARIA, CENARGEN; MARILIA DE CASTRO RODRIGUES PAPPAS, CENARGEN; LEONARDO LOPES BHERING, CNAPE; BETANIA FERRAZ QUIRINO, CNPAE; DARIO GRATTAPAGLIA, CENARGEN. |
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Título: |
Molecular markers reveal limited genetic diversity in a large germplasm collection of the biofuel crop Jatropha curcas L. in Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Crop Science, v. 50, p. 2372-2382, nov./dec. 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
The genetic diversity of a comprehensive germplasm collection involving 192 Jatropha curcas L. accessions collected throughout Brazil, spanning a wide latitudinal range from the states of Maranhão (1°49' S, 44°52' W) to Rio Grande do Sul (29°33' S, 55°07' W), was studied with 96 random amplified polymorphic DNA (RAPD) primers and six selected microsatellite markers. Only 23 of the 381 replicated RAPD markers and one microsatellite were polymorphic. Surprisingly, all accessions were homozygous at all but one microsatellite, in contrast with the outcrossing mating system reported for the species, suggesting that J. curcas not only supports selfing but possibly breeds by geitonogamy. Similarity based clustering revealed only 43 unique multilocus profiles in the 192 accessions. The probabilities of accessions with indistinguishable multilocus profiles being true duplicates varied between 83 and 99%. No relationship between clustering of accessions and geographic origin was observed, suggesting that J. curcas has experienced a widespread dispersion across regions by seeds and possibly vegetative propagules. The narrow genetic base and extent of potentially duplicated accessions likely reflects a recent common ancestry, drift, and intensive selection of the currently cultivated materials since the time of introduction. This result highlights an urgent need for the introduction of new and diverse accessions to this germplasm collection if Brazil is to drive and sustain successful breeding programs. MenosThe genetic diversity of a comprehensive germplasm collection involving 192 Jatropha curcas L. accessions collected throughout Brazil, spanning a wide latitudinal range from the states of Maranhão (1°49' S, 44°52' W) to Rio Grande do Sul (29°33' S, 55°07' W), was studied with 96 random amplified polymorphic DNA (RAPD) primers and six selected microsatellite markers. Only 23 of the 381 replicated RAPD markers and one microsatellite were polymorphic. Surprisingly, all accessions were homozygous at all but one microsatellite, in contrast with the outcrossing mating system reported for the species, suggesting that J. curcas not only supports selfing but possibly breeds by geitonogamy. Similarity based clustering revealed only 43 unique multilocus profiles in the 192 accessions. The probabilities of accessions with indistinguishable multilocus profiles being true duplicates varied between 83 and 99%. No relationship between clustering of accessions and geographic origin was observed, suggesting that J. curcas has experienced a widespread dispersion across regions by seeds and possibly vegetative propagules. The narrow genetic base and extent of potentially duplicated accessions likely reflects a recent common ancestry, drift, and intensive selection of the currently cultivated materials since the time of introduction. This result highlights an urgent need for the introduction of new and diverse accessions to this germplasm collection if Brazil is to drive and sustain successful b... Mostrar Tudo |
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Palavras-Chave: |
Melhoramento genético; Pinhão manso. |
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Thesagro: |
Banco de Germoplasma; Biologia Molecular; Marcador Molecular. |
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Thesaurus Nal: |
biodiesel. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/23554/1/Id-1004-A-2.pdf
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Marc: |
LEADER 02320naa a2200265 a 4500
001 1871434
005 2023-02-03
008 2010 bl uuuu u00u1 u #d
100 1 $aROSADO, T. B.
245 $aMolecular markers reveal limited genetic diversity in a large germplasm collection of the biofuel crop Jatropha curcas L. in Brazil.
260 $c2010
520 $aThe genetic diversity of a comprehensive germplasm collection involving 192 Jatropha curcas L. accessions collected throughout Brazil, spanning a wide latitudinal range from the states of Maranhão (1°49' S, 44°52' W) to Rio Grande do Sul (29°33' S, 55°07' W), was studied with 96 random amplified polymorphic DNA (RAPD) primers and six selected microsatellite markers. Only 23 of the 381 replicated RAPD markers and one microsatellite were polymorphic. Surprisingly, all accessions were homozygous at all but one microsatellite, in contrast with the outcrossing mating system reported for the species, suggesting that J. curcas not only supports selfing but possibly breeds by geitonogamy. Similarity based clustering revealed only 43 unique multilocus profiles in the 192 accessions. The probabilities of accessions with indistinguishable multilocus profiles being true duplicates varied between 83 and 99%. No relationship between clustering of accessions and geographic origin was observed, suggesting that J. curcas has experienced a widespread dispersion across regions by seeds and possibly vegetative propagules. The narrow genetic base and extent of potentially duplicated accessions likely reflects a recent common ancestry, drift, and intensive selection of the currently cultivated materials since the time of introduction. This result highlights an urgent need for the introduction of new and diverse accessions to this germplasm collection if Brazil is to drive and sustain successful breeding programs.
650 $abiodiesel
650 $aBanco de Germoplasma
650 $aBiologia Molecular
650 $aMarcador Molecular
653 $aMelhoramento genético
653 $aPinhão manso
700 1 $aLAVIOLA, B. G.
700 1 $aFARIA, D. A.
700 1 $aPAPPAS, M. de C. R.
700 1 $aBHERING, L. L.
700 1 $aQUIRINO, B. F.
700 1 $aGRATTAPAGLIA, D.
773 $tCrop Science$gv. 50, p. 2372-2382, nov./dec. 2010.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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