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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
25/02/2005 |
Data da última atualização: |
19/04/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SANTOS, C. A. F.; SENALIK, D.; SIMON, P. W. |
Afiliação: |
CARLOS ANTONIO FERNANDES SANTOS, CPATSA. |
Título: |
Path analysis suggests phytoene accumulation is the key step limiting the carotenoid pathway in white carrot roots. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
Genetics and Molecular Biology, Ribeirão Preto, v. 28, n. 2, p. 287-293, 2005. |
Idioma: |
Inglês |
Conteúdo: |
Two F 2 carrot (Daucus carota L.) populations (orange rooted Brasilia x very dark orange rooted High Carotene Mass - HCM cross and the dark orange rooted cultivated variety B493 x white rooted wild carrot Queen Anne’s Lace - QAL cross) with very unrelated genetic backgrounds were used to investigate intrinsic factors limiting carotenoid accumulation in carrots by applying phenotypic correlation and path analysis to study the relationships between major root carotenes, root color and several other morphological traits. Most of the correlations between traits were close and agreed in sign between the two populations. Root weight had a moderate to highly significant positive correlation with leaf length, root length and top and middle root diameter. Although phenotypic correlations failed to identify the order of the substrates and products in the carotenoid pathway the correct order of substrates and products (phytoene zeta-carotene lycopene) was identified in the causal diagram of beta-carotene for the Brasilia x HCM population. Path analysis of beta-carotene synthesis in the B493 x QAL population suggested that selection for root carotenes had little effect on plant morphological traits. Causal model of beta-carotene and lycopene in the B493 x QAL population suggested that phytoene synthesis is the key step limiting the carotenoid pathway in white carrots. Path analysis, first presented by Sewall Wright to study quantitative traits, appears to be a powerful statistical approach for the identification of key compounds in complex pathways. MenosTwo F 2 carrot (Daucus carota L.) populations (orange rooted Brasilia x very dark orange rooted High Carotene Mass - HCM cross and the dark orange rooted cultivated variety B493 x white rooted wild carrot Queen Anne’s Lace - QAL cross) with very unrelated genetic backgrounds were used to investigate intrinsic factors limiting carotenoid accumulation in carrots by applying phenotypic correlation and path analysis to study the relationships between major root carotenes, root color and several other morphological traits. Most of the correlations between traits were close and agreed in sign between the two populations. Root weight had a moderate to highly significant positive correlation with leaf length, root length and top and middle root diameter. Although phenotypic correlations failed to identify the order of the substrates and products in the carotenoid pathway the correct order of substrates and products (phytoene zeta-carotene lycopene) was identified in the causal diagram of beta-carotene for the Brasilia x HCM population. Path analysis of beta-carotene synthesis in the B493 x QAL population suggested that selection for root carotenes had little effect on plant morphological traits. Causal model of beta-carotene and lycopene in the B493 x QAL population suggested that phytoene synthesis is the key step limiting the carotenoid pathway in white carrots. Path analysis, first presented by Sewall Wright to study quantitative traits, appears to be a powerful statistical appro... Mostrar Tudo |
Palavras-Chave: |
Carrot; Correlação; Diagramação; Path diagram. |
Thesagro: |
Cenoura; Daucus Carota; Engenharia Genética. |
Thesaurus Nal: |
Genetic engineering. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162452/1/Carlos.pdf
|
Marc: |
LEADER 02281naa a2200241 a 4500 001 1155473 005 2018-04-19 008 2005 bl uuuu u00u1 u #d 100 1 $aSANTOS, C. A. F. 245 $aPath analysis suggests phytoene accumulation is the key step limiting the carotenoid pathway in white carrot roots. 260 $c2005 520 $aTwo F 2 carrot (Daucus carota L.) populations (orange rooted Brasilia x very dark orange rooted High Carotene Mass - HCM cross and the dark orange rooted cultivated variety B493 x white rooted wild carrot Queen Anne’s Lace - QAL cross) with very unrelated genetic backgrounds were used to investigate intrinsic factors limiting carotenoid accumulation in carrots by applying phenotypic correlation and path analysis to study the relationships between major root carotenes, root color and several other morphological traits. Most of the correlations between traits were close and agreed in sign between the two populations. Root weight had a moderate to highly significant positive correlation with leaf length, root length and top and middle root diameter. Although phenotypic correlations failed to identify the order of the substrates and products in the carotenoid pathway the correct order of substrates and products (phytoene zeta-carotene lycopene) was identified in the causal diagram of beta-carotene for the Brasilia x HCM population. Path analysis of beta-carotene synthesis in the B493 x QAL population suggested that selection for root carotenes had little effect on plant morphological traits. Causal model of beta-carotene and lycopene in the B493 x QAL population suggested that phytoene synthesis is the key step limiting the carotenoid pathway in white carrots. Path analysis, first presented by Sewall Wright to study quantitative traits, appears to be a powerful statistical approach for the identification of key compounds in complex pathways. 650 $aGenetic engineering 650 $aCenoura 650 $aDaucus Carota 650 $aEngenharia Genética 653 $aCarrot 653 $aCorrelação 653 $aDiagramação 653 $aPath diagram 700 1 $aSENALIK, D. 700 1 $aSIMON, P. W. 773 $tGenetics and Molecular Biology, Ribeirão Preto$gv. 28, n. 2, p. 287-293, 2005.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
21/11/1996 |
Data da última atualização: |
16/09/2019 |
Tipo da produção científica: |
Circular Técnica |
Autoria: |
VALDEBENITO-SANHUEZA, R. M.; HERTER, F.; BERNARDI, J. |
Afiliação: |
Rosa Maria Valdebenito Sanhueza, CNPUV; FLÁVIO HERTER, CPACT (aposentado); JOÃO BERNARDI, CNPUV (aposentado). |
Título: |
Fogo bacteriano das pomáceas. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Bento Gonçalves: Embrapa Uva e Vinho, 1996. |
Páginas: |
12 p. |
Série: |
(Embrapa Uva e Vinho. Circular Técnica, 21). |
Idioma: |
Português |
Palavras-Chave: |
Bento Goncalves; Centro Nacional de Pesquisa de Uva e Vinho; Doença da planta; EMBRAPA. |
Thesagro: |
Doença; Fogo Bacteriano; Fruta de Clima Temperado; Fruticultura; Maçã; Pêra. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40813/1/cir21.pdf
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Marc: |
LEADER 00733nam a2200265 a 4500 001 1536106 005 2019-09-16 008 1996 bl uuuu u0uu1 u #d 100 1 $aVALDEBENITO-SANHUEZA, R. M. 245 $aFogo bacteriano das pomáceas. 260 $aBento Gonçalves: Embrapa Uva e Vinho$c1996 300 $a12 p. 490 $a(Embrapa Uva e Vinho. Circular Técnica, 21). 650 $aDoença 650 $aFogo Bacteriano 650 $aFruta de Clima Temperado 650 $aFruticultura 650 $aMaçã 650 $aPêra 653 $aBento Goncalves 653 $aCentro Nacional de Pesquisa de Uva e Vinho 653 $aDoença da planta 653 $aEMBRAPA 700 1 $aHERTER, F. 700 1 $aBERNARDI, J.
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