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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
06/10/2011 |
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Data da última atualização: |
13/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DIOLA, V.; BRITO, G. G. de; CAIXETA, E. T.; MACIEL-ZAMBOLIM, E.; SAKIYAMA, N. S.; LOUREIRO, M. E. |
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Afiliação: |
Universidade Federal Rural do Rio de Janeiro; GIOVANI GREIGH DE BRITO, CNPA; EVELINE TEIXEIRA CAIXETA, SAPC; BIOCAFÉ/BIOAGRO; BIOCAFÉ/BIOAGRO; Universidade Federal de Viçosa. |
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Título: |
High-density genetic mapping for coffee leaf rust resistance. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Tree Genetics & Genomes, v. 7, n. 6, p. 1199-1208, Dec. 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee leaf rust caused by the fungus Hemileia vastatrix causes considerable economic losses for coffee producers. Although agrochemical products can provide sufficient disease control, the use of resistant cultivars is a safer alternative. This resistance may be constrained by one or a few genetic factors, mainly those found in material originating from interspecific hybrids. In this study, the genetic analysis of an F2 population consisting of 224 plants derived from a crossing of Híbrido de Timor UFV 427-15 (resistant) with Catuaí Amarelo IAC 30 (susceptible) showed that a dominant gene confers the resistance of coffee to race II of H. vastatrix. From a genetic map saturated with 25 amplified fragment length polymorphism (AFLP) markers linked to the resistance gene, we developed a high-density genetic map with six sequence-characterized amplified region (SCAR) markers delimiting a chromosomal region of 9.45 cM and flanking the dominant gene at 0.7 and 0.9 cM. This is the first saturated and high-density genetic map obtained from this region containing the resistance gene. The results of this study are of great importance for the introduction of molecular markers for marker-assisted selection; they will also facilitate studies related to the cloning, structure, and function of race-specific genes involved in the resistance of coffee trees to H. vastatrix. |
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Palavras-Chave: |
Dominant resistance gene; High-density genetic map. |
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Thesagro: |
Coffea Arábica; Hemileia Vastatrix. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42966/1/High-density-genetic.pdf
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Marc: |
LEADER 02058naa a2200229 a 4500
001 1902620
005 2016-10-13
008 2011 bl uuuu u00u1 u #d
100 1 $aDIOLA, V.
245 $aHigh-density genetic mapping for coffee leaf rust resistance.$h[electronic resource]
260 $c2011
520 $aCoffee leaf rust caused by the fungus Hemileia vastatrix causes considerable economic losses for coffee producers. Although agrochemical products can provide sufficient disease control, the use of resistant cultivars is a safer alternative. This resistance may be constrained by one or a few genetic factors, mainly those found in material originating from interspecific hybrids. In this study, the genetic analysis of an F2 population consisting of 224 plants derived from a crossing of Híbrido de Timor UFV 427-15 (resistant) with Catuaí Amarelo IAC 30 (susceptible) showed that a dominant gene confers the resistance of coffee to race II of H. vastatrix. From a genetic map saturated with 25 amplified fragment length polymorphism (AFLP) markers linked to the resistance gene, we developed a high-density genetic map with six sequence-characterized amplified region (SCAR) markers delimiting a chromosomal region of 9.45 cM and flanking the dominant gene at 0.7 and 0.9 cM. This is the first saturated and high-density genetic map obtained from this region containing the resistance gene. The results of this study are of great importance for the introduction of molecular markers for marker-assisted selection; they will also facilitate studies related to the cloning, structure, and function of race-specific genes involved in the resistance of coffee trees to H. vastatrix.
650 $aCoffea Arábica
650 $aHemileia Vastatrix
653 $aDominant resistance gene
653 $aHigh-density genetic map
700 1 $aBRITO, G. G. de
700 1 $aCAIXETA, E. T.
700 1 $aMACIEL-ZAMBOLIM, E.
700 1 $aSAKIYAMA, N. S.
700 1 $aLOUREIRO, M. E.
773 $tTree Genetics & Genomes$gv. 7, n. 6, p. 1199-1208, Dec. 2011.
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Registro original: |
Embrapa Café (CNPCa) |
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| 1. |  | DIOLA, V.; BRITO, G. G. de; CAIXETA, E. T.; MACIEL-ZAMBOLIM, E.; SAKIYAMA, N. S.; LOUREIRO, M. E. High-density genetic mapping for coffee leaf rust resistance. Tree Genetics & Genomes, v. 7, n. 6, p. 1199-1208, Dec. 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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