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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
26/10/2004 |
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Data da última atualização: |
27/10/2004 |
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Autoria: |
CARVALHO, V. P.; RUAS, P. M.; FERREIRA, J. M.; MOREIRA, R. M. P. |
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Título: |
Assessment of genetic diversity in maize (Zea mays L.) landraces using inter simple sequence repeat (ISSR) markers. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 4, p. 557-568, Dec. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Inter Simple Sequence Repeat (ISSR) markers were used to assess the genetic relationships among 79 landraces and two improved varieties of maize cultivated in Brazil. Nine primers comprising dinucleotides (GA)9, (AT)9, trinucleotides (GTG)6, (TAG)6, and the tetranucleotides (GATA)4, (GACA)4, (CCTA)4, and (GGTA)4 were used for PCR amplifications. From a total of 153 DNA fragments produced, 116 (75.8%) were found to be polymorphics. The dinucleotide motifs (GA)9 C combined with other di-, tri- and tetra-nucleotides produced a greater number of DNA fragments, which suggests a high frequency of the poly GA microsatellite motifs in the maize genome. The UPGMA clustering algorithm associated the varieties into three major groups that were correlated to the endosperm colors and fourteen sub clusters that were mostly related to the flowering time. The results revealed that ISSR markers could be efficiently used to quickly access the genetic variation available in the maize germplasm. The information on genetic similarity among varieties will be useful for selecting the accessions to establish a germplasm bank of maize landraces and to develop breeding programs. |
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Palavras-Chave: |
Diversidade genética; Genetic diversity; ISSR markers; Maize; Maize landraces; Varieade Crioula. |
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Thesagro: |
Milho; Zea Mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01926naa a2200253 a 4500
001 1212608
005 2004-10-27
008 2002 bl uuuu u00u1 u #d
100 1 $aCARVALHO, V. P.
245 $aAssessment of genetic diversity in maize (Zea mays L.) landraces using inter simple sequence repeat (ISSR) markers.
260 $c2002
520 $aInter Simple Sequence Repeat (ISSR) markers were used to assess the genetic relationships among 79 landraces and two improved varieties of maize cultivated in Brazil. Nine primers comprising dinucleotides (GA)9, (AT)9, trinucleotides (GTG)6, (TAG)6, and the tetranucleotides (GATA)4, (GACA)4, (CCTA)4, and (GGTA)4 were used for PCR amplifications. From a total of 153 DNA fragments produced, 116 (75.8%) were found to be polymorphics. The dinucleotide motifs (GA)9 C combined with other di-, tri- and tetra-nucleotides produced a greater number of DNA fragments, which suggests a high frequency of the poly GA microsatellite motifs in the maize genome. The UPGMA clustering algorithm associated the varieties into three major groups that were correlated to the endosperm colors and fourteen sub clusters that were mostly related to the flowering time. The results revealed that ISSR markers could be efficiently used to quickly access the genetic variation available in the maize germplasm. The information on genetic similarity among varieties will be useful for selecting the accessions to establish a germplasm bank of maize landraces and to develop breeding programs.
650 $aMilho
650 $aZea Mays
653 $aDiversidade genética
653 $aGenetic diversity
653 $aISSR markers
653 $aMaize
653 $aMaize landraces
653 $aVarieade Crioula
700 1 $aRUAS, P. M.
700 1 $aFERREIRA, J. M.
700 1 $aMOREIRA, R. M. P.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 4, p. 557-568, Dec. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
08/07/2022 |
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Data da última atualização: |
15/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RAMOS-GONZÁLEZ, P. L.; KONDO, H.; MOROZOV, S.; VASILAKIS, N.; VARSANI, A.; CAO, M.; ASTUA, J. de F. |
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Afiliação: |
PEDRO LUIS RAMOS-GONZÁLEZ; HIDEKI KONDO; SERGEY MOROZOV; NIKOLAOS VASILAKIS; ARVIND VARSANI; MENGJI CAO; JULIANA DE FREITAS ASTUA, CNPMF. |
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Título: |
The Border between kitavirids and nege-like viruses: tracking the evolutionary pace of plant- and arthropod-infecting viruses. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v.3, 932523, May, 2022. doi: |
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Descrição Física: |
il. PDF. |
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DOI: |
10.3389/fpls.2022.932523 |
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Idioma: |
Inglês |
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Thesagro: |
Planta; Vírus. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1144535/1/editorial.pdf
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Marc: |
LEADER 00706naa a2200229 a 4500
001 2144535
005 2022-11-15
008 2022 bl uuuu u00u1 u #d
024 7 $a10.3389/fpls.2022.932523$2DOI
100 1 $aRAMOS-GONZÁLEZ, P. L.
245 $aThe Border between kitavirids and nege-like viruses$btracking the evolutionary pace of plant- and arthropod-infecting viruses.$h[electronic resource]
260 $c2022
300 $cil. PDF.
650 $aPlanta
650 $aVírus
700 1 $aKONDO, H.
700 1 $aMOROZOV, S.
700 1 $aVASILAKIS, N.
700 1 $aVARSANI, A.
700 1 $aCAO, M.
700 1 $aASTUA, J. de F.
773 $tFrontiers in Plant Science$gv.3, 932523, May, 2022. doi:
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Embrapa Mandioca e Fruticultura (CNPMF) |
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