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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
09/04/1999 |
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Data da última atualização: |
09/04/1999 |
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Autoria: |
MIAN, M. A. R.; BAILEY, M. A.; ASHLEY, D. A.; WELLS, R.; CARTER JUNIOR, T. E.; PARROTT, W. A.; BOERMA, H. R. |
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Afiliação: |
Dep. of Crop and Soil Sciences. of Georgia, Athens, GA 30602-7272. |
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Título: |
Molecular markers associated with water use efficiency and leaf ash insoybean |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Published in crop Sci. v.36, p.1252-1257, 1996 |
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Idioma: |
Inglês |
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Conteúdo: |
Water use efficiency (WUE) is an important trait thhat has been associated with drought tolerance of crop plants, and leaf ash (LASH) is generally related to WUE. A restriction fragment length poly morphism (RFLP) map was constructed from a soybean [Glycine max )L.) Merr.] population of 120 F4-derived lines from a cross of `Young' x PI 416937. The purpose of this research was to identify quantitative trait loci (QTL) associated with WUE and LASH in 36-d-old, greenhhouse-grown plants. The experimental design was a randomized complete block with six replications. Significant (P < 0.01) phenotypic differences were detected among the lines for both traits. A total of four and six independent RFLP markers were associated with WUE and LASH and if combined each group of markers would explain 38 and 53% of the variability in the respective traits. One marker locus (cr497-1), on USDA Linkage Group J, explained 13.2% of the variation in WUE indicating the presence of a major QTL. The LASH was negatively correlated with WUE (r = - 0.40**), and two QTL were associated with both WUE and LASH. For each of these QTL, the allele for increased WUE was associated with reduced LASH. |
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Palavras-Chave: |
Beaf ash; Cinza foliar; Mareaclores; Molecular markes; Moleculares; Soybean; Tolerancia a area; Wue. |
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Thesaurus Nal: |
drought tolerance; Raja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01993naa a2200313 a 4500
001 1648086
005 1999-04-09
008 1996 bl --- 0-- u #d
100 1 $aMIAN, M. A. R.
245 $aMolecular markers associated with water use efficiency and leaf ash insoybean
260 $c1996
520 $aWater use efficiency (WUE) is an important trait thhat has been associated with drought tolerance of crop plants, and leaf ash (LASH) is generally related to WUE. A restriction fragment length poly morphism (RFLP) map was constructed from a soybean [Glycine max )L.) Merr.] population of 120 F4-derived lines from a cross of `Young' x PI 416937. The purpose of this research was to identify quantitative trait loci (QTL) associated with WUE and LASH in 36-d-old, greenhhouse-grown plants. The experimental design was a randomized complete block with six replications. Significant (P < 0.01) phenotypic differences were detected among the lines for both traits. A total of four and six independent RFLP markers were associated with WUE and LASH and if combined each group of markers would explain 38 and 53% of the variability in the respective traits. One marker locus (cr497-1), on USDA Linkage Group J, explained 13.2% of the variation in WUE indicating the presence of a major QTL. The LASH was negatively correlated with WUE (r = - 0.40**), and two QTL were associated with both WUE and LASH. For each of these QTL, the allele for increased WUE was associated with reduced LASH.
650 $adrought tolerance
650 $aRaja
653 $aBeaf ash
653 $aCinza foliar
653 $aMareaclores
653 $aMolecular markes
653 $aMoleculares
653 $aSoybean
653 $aTolerancia a area
653 $aWue
700 1 $aBAILEY, M. A.
700 1 $aASHLEY, D. A.
700 1 $aWELLS, R.
700 1 $aCARTER JUNIOR, T. E.
700 1 $aPARROTT, W. A.
700 1 $aBOERMA, H. R.
773 $tPublished in crop Sci.$gv.36, p.1252-1257, 1996
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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