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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
15/10/2020 |
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Data da última atualização: |
15/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, R. A.; ZAMBOLIM, L.; CASTRO, I. S. L.; RODRIGUES, H. S.; CRUZ, C. D.; CAIXETA, E. T. |
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Afiliação: |
R. A. Silva, Universidade Federal de Viçosa; L. Zambolim, Universidade Federal de Viçosa; I. S. L. Castro, Universidade Federal de Viçosa; H. S. Rodrigues, Universidade Federal de Viçosa; C. D. Cruz, Universidade Federal de Viçosa; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa. |
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Título: |
The Híbrido de Timor germplasm: identification of molecular diversity and resistance sources to coffee berry disease and leaf rust. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Euphytica, v. 214, n. 9, 2018. |
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DOI: |
https://doi.org/10.1007/s10681-018-2231-2 |
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Idioma: |
Inglês |
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Conteúdo: |
The main phytosanitary problems affecting global coffee production are the fungal diseases known as rust, caused by Hemileia vastatrix Berkeley and Broome, and coffee berry disease (CBD), induced by Colletotrichum kahawae Waller and Bridge. The main disease control strategy is the use of resistant coffee cultivars. Híbrido de Timor is the most important source of resistant varieties used in breeding programs worldwide. The objective of this work was to characterize the diversity and disease resistance of 152 HdT genotypes from the germplasm collection at the Universidade Federal de Viçosa (UFV). Accessions were phenotyped with H. vastatrix races II and XXXIII. Molecular analysis was carried out with 29 random microsatellite markers or single sequence repeats (SSRs), and two SSRs associated with the CBD resistance gene Ck-1. All accessions in the germplasm collection were resistant to H. vastatrix race II, and 141 were resistant to H. vastatrix race XXXIII. Based on the presence of markers, there were 106 accessions containing the CBD resistance gene Ck-1. In the diversity study, the 152 accessions clustered into 21 different groups. A unique molecular profile (fingerprint) was determined for each individual, using 52 alleles from 22 SSR markers. The HdT germplasm of UFV was highly diverse, and included 99 accessions with multiple disease resistance genes, including the CBD resistance gene Ck-1, and others conferring resistance to H. vastatrix races II and XXXIII. |
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Palavras-Chave: |
Coffee breeding; Durable resistance; Fingerprinting. |
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Thesagro: |
Hemileia Vastatrix. |
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Thesaurus Nal: |
Colletotrichum kahawae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02286naa a2200253 a 4500
001 2125516
005 2020-10-15
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10681-018-2231-2$2DOI
100 1 $aSILVA, R. A.
245 $aThe Híbrido de Timor germplasm$bidentification of molecular diversity and resistance sources to coffee berry disease and leaf rust.$h[electronic resource]
260 $c2018
520 $aThe main phytosanitary problems affecting global coffee production are the fungal diseases known as rust, caused by Hemileia vastatrix Berkeley and Broome, and coffee berry disease (CBD), induced by Colletotrichum kahawae Waller and Bridge. The main disease control strategy is the use of resistant coffee cultivars. Híbrido de Timor is the most important source of resistant varieties used in breeding programs worldwide. The objective of this work was to characterize the diversity and disease resistance of 152 HdT genotypes from the germplasm collection at the Universidade Federal de Viçosa (UFV). Accessions were phenotyped with H. vastatrix races II and XXXIII. Molecular analysis was carried out with 29 random microsatellite markers or single sequence repeats (SSRs), and two SSRs associated with the CBD resistance gene Ck-1. All accessions in the germplasm collection were resistant to H. vastatrix race II, and 141 were resistant to H. vastatrix race XXXIII. Based on the presence of markers, there were 106 accessions containing the CBD resistance gene Ck-1. In the diversity study, the 152 accessions clustered into 21 different groups. A unique molecular profile (fingerprint) was determined for each individual, using 52 alleles from 22 SSR markers. The HdT germplasm of UFV was highly diverse, and included 99 accessions with multiple disease resistance genes, including the CBD resistance gene Ck-1, and others conferring resistance to H. vastatrix races II and XXXIII.
650 $aColletotrichum kahawae
650 $aHemileia Vastatrix
653 $aCoffee breeding
653 $aDurable resistance
653 $aFingerprinting
700 1 $aZAMBOLIM, L.
700 1 $aCASTRO, I. S. L.
700 1 $aRODRIGUES, H. S.
700 1 $aCRUZ, C. D.
700 1 $aCAIXETA, E. T.
773 $tEuphytica$gv. 214, n. 9, 2018.
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Registro original: |
Embrapa Café (CNPCa) |
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