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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
31/08/2021 |
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Data da última atualização: |
31/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SENRA, J. F. de B.; FERRÃO, M. A. G.; MENDONÇA, R. F. de; FONSECA, A. F. A. da.; FERRÃO, R. G.; VOLPI, P. S.; VERDIN FILHO, A. C.; COMÉRIO, M.; SILVA, M. W. da |
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Afiliação: |
Joao Felipe de Brites Senra, Incaper; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Rodolfo Ferreira de Mendonça, CNPQ/Incaper; Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; Romário Gava Ferrão, Multivix; Paulo Sérgio Volpi, Incaper; Abraão Carlos Verdin Filho, Incaper; Marcone Comério, Incaper; Matheus Wandermurem da Silva, Incaper. |
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Título: |
Genetic Variability of Access of the Active Germplasm Bank of Coffea canephora of Incaper in Southern Espírito Santo. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Genetic Resources v. 6, n. 2, p. 172-184, 2020. |
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Idioma: |
Inglês |
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Notas: |
Projeto: 10.18.20.019.00.06 |
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Conteúdo: |
This study aimed to analyze the genetic variability of 323 accessions of the Active Germplasm Bank (BAG) of Coffea canephora of the Institute for Research, Technical Assistance and Rural Extension of Espírito Santo (Incaper) using 38 quantitative phenotypic characters. The standardized average Euclidean distance between the accessions was estimated to generate a statistical distance matrix and, from this, the groupings were performed using the Tocher and UPGMA. Concerning the studied accessions, the amplitude of the data set for each characteristic, and the possibility of selection were visualized. The accuracy of data collection was verified by the Variation Index with values below 10% for most of the characters, except for characters such as number of rosettes in the upper plagiotropic branch, number of grains in the smallest orthotropic branch, and number of grains per rosette on the upper plagiotropic branch. Using the Tocher method, 25 groups were recognized, 10 of which were formed by only one accession. The hierarchical grouping highlighted the lack of duplicates and accessions 173 (ES 1-B) as the most genetically distant. The analysis of the relative contribution of each character distinguished fresh matter and dry matter of orthotropic branches thrown by plants susceptible to pruning as fundamental for the differentiation of accessions and important in future studies of diversity as they are responsible for about 83% of the phenotypic variability of the study. There were no duplicates among the evaluated accessions and there are heterotic groups and distinct accessions in the BAG that can be used in hybridization programs or per se to obtain new cultivars. The pairs of the most similar and dissimilar accessions were 45 (148/86) and 320 (IAC37) with a statistical distance of 0.0713 and 173 (ES 1-B) and 270 (403-Marilândia) with a distance of 0.4765, respectively. MenosThis study aimed to analyze the genetic variability of 323 accessions of the Active Germplasm Bank (BAG) of Coffea canephora of the Institute for Research, Technical Assistance and Rural Extension of Espírito Santo (Incaper) using 38 quantitative phenotypic characters. The standardized average Euclidean distance between the accessions was estimated to generate a statistical distance matrix and, from this, the groupings were performed using the Tocher and UPGMA. Concerning the studied accessions, the amplitude of the data set for each characteristic, and the possibility of selection were visualized. The accuracy of data collection was verified by the Variation Index with values below 10% for most of the characters, except for characters such as number of rosettes in the upper plagiotropic branch, number of grains in the smallest orthotropic branch, and number of grains per rosette on the upper plagiotropic branch. Using the Tocher method, 25 groups were recognized, 10 of which were formed by only one accession. The hierarchical grouping highlighted the lack of duplicates and accessions 173 (ES 1-B) as the most genetically distant. The analysis of the relative contribution of each character distinguished fresh matter and dry matter of orthotropic branches thrown by plants susceptible to pruning as fundamental for the differentiation of accessions and important in future studies of diversity as they are respons... Mostrar Tudo |
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Thesagro: |
Cluster analysis; Coffea Canephora; Multivariate analysis; Species diversity. |
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Categoria do assunto: |
-- |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/4231/1/GeneticVariability-ferrao.pdf
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Marc: |
LEADER 02917naa a2200277 a 4500
001 1023704
005 2021-08-31
008 2020 bl uuuu u00u1 u #d
100 1 $aSENRA, J. F. de B.
245 $aGenetic Variability of Access of the Active Germplasm Bank of Coffea canephora of Incaper in Southern Espírito Santo.$h[electronic resource]
260 $c2020
500 $aProjeto: 10.18.20.019.00.06
520 $aThis study aimed to analyze the genetic variability of 323 accessions of the Active Germplasm Bank (BAG) of Coffea canephora of the Institute for Research, Technical Assistance and Rural Extension of Espírito Santo (Incaper) using 38 quantitative phenotypic characters. The standardized average Euclidean distance between the accessions was estimated to generate a statistical distance matrix and, from this, the groupings were performed using the Tocher and UPGMA. Concerning the studied accessions, the amplitude of the data set for each characteristic, and the possibility of selection were visualized. The accuracy of data collection was verified by the Variation Index with values below 10% for most of the characters, except for characters such as number of rosettes in the upper plagiotropic branch, number of grains in the smallest orthotropic branch, and number of grains per rosette on the upper plagiotropic branch. Using the Tocher method, 25 groups were recognized, 10 of which were formed by only one accession. The hierarchical grouping highlighted the lack of duplicates and accessions 173 (ES 1-B) as the most genetically distant. The analysis of the relative contribution of each character distinguished fresh matter and dry matter of orthotropic branches thrown by plants susceptible to pruning as fundamental for the differentiation of accessions and important in future studies of diversity as they are responsible for about 83% of the phenotypic variability of the study. There were no duplicates among the evaluated accessions and there are heterotic groups and distinct accessions in the BAG that can be used in hybridization programs or per se to obtain new cultivars. The pairs of the most similar and dissimilar accessions were 45 (148/86) and 320 (IAC37) with a statistical distance of 0.0713 and 173 (ES 1-B) and 270 (403-Marilândia) with a distance of 0.4765, respectively.
650 $aCluster analysis
650 $aCoffea Canephora
650 $aMultivariate analysis
650 $aSpecies diversity
700 1 $aFERRÃO, M. A. G.
700 1 $aMENDONÇA, R. F. de
700 1 $aFONSECA, A. F. A. da.
700 1 $aFERRÃO, R. G.
700 1 $aVOLPI, P. S.
700 1 $aVERDIN FILHO, A. C.
700 1 $aCOMÉRIO, M.
700 1 $aSILVA, M. W. da
773 $tJournal of Genetic Resources$gv. 6, n. 2, p. 172-184, 2020.
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
28/06/2016 |
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Data da última atualização: |
28/06/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
- - - |
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Autoria: |
ZAMBOLIM, L.; SOUZA NETO, P. N. de.; ZAMBOLIM, E. M.; CAIXETA, E. T.; SAKIYAMA, N. S.; FERRÃO, R. G. |
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Afiliação: |
Laércio Zambolim, UFV; Pedro Nery de Souza Neto, UFV; Eunize Maciel Zambolim, UFV; Eveline Teixeira Caixeta, EMBRAPA; Ney Sussumo Sakiyama, UFV; Romário Gava Ferrão, Incaper. |
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Título: |
Components of resistance of conilon coffee that reduce the rate of leaf rust development. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Australasian Plant Pathology, p. 1-12, june 2016. |
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ISSN: |
1448-6032 |
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DOI: |
10.1007/s13313-016-0425-4 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to quantify the levels of resistance of 39 hybrids ?Clone 83 × Clone 02?of Coffea canephora var. conilon to the races II (v5) and XXXIII (v5,7,9) of H. vastatrix. To study the resistance of the genotypes, leaf discs were removed from the plants and spreaded on the top of a stainless steel screen inside gerbox as a moist chamber. The gerboxes were mantained at 22 ± 2 °C in the dark for 48 h and under 12 h of photoperiod, respectively. The hybrids were classified into four levels: resistant (R), moderately resistant (MR), moderately susceptible (MS) and susceptible (S). Leaf discs (%) containing sporulated lesions was the resistance component that had the greatest absolute correlation (0.95). The level of resistance of the hybrids varyied according to the race of the pathogen. The percentage of R, MR, MS and S of the hybrids to race II and XXXIII were 25 %, 25 %, 38 %, and 11 %, and 13 %, 37 %, 42 %, and 8 %, respectively. Nine (25 %) and five (13 %) hybrids were R to race II and XXXIII, respectively. Four hybrids (21, 30, 48 and 66) showed vertical resistance to races II and XXXIII. Possibly these hybrids have the resistance factor SH6, because they were resistant to race XXXIII v5,7,9. Leaf discs (%) with sporulating lesions can be used as a reference in future studyies of screening genotypes with horizontal resistance to C. canephora genotypes to leaf rust. |
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Palavras-Chave: |
Café Conilon. |
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Thesaurus NAL: |
Coffea canephora; Hemileia vastatrix; Horizontal resistance; Physiological races. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
http://link.springer.com/article/10.1007/s13313-016-0425-4
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Marc: |
LEADER 02257nam a2200253 a 4500
001 1011126
005 2016-06-28
008 2016 bl uuuu u0uu1 u #d
022 $a1448-6032
024 7 $a10.1007/s13313-016-0425-4$2DOI
100 1 $aZAMBOLIM, L.
245 $aComponents of resistance of conilon coffee that reduce the rate of leaf rust development.
260 $aAustralasian Plant Pathology, p. 1-12, june 2016.$c2016
520 $aThis study aimed to quantify the levels of resistance of 39 hybrids ?Clone 83 × Clone 02?of Coffea canephora var. conilon to the races II (v5) and XXXIII (v5,7,9) of H. vastatrix. To study the resistance of the genotypes, leaf discs were removed from the plants and spreaded on the top of a stainless steel screen inside gerbox as a moist chamber. The gerboxes were mantained at 22 ± 2 °C in the dark for 48 h and under 12 h of photoperiod, respectively. The hybrids were classified into four levels: resistant (R), moderately resistant (MR), moderately susceptible (MS) and susceptible (S). Leaf discs (%) containing sporulated lesions was the resistance component that had the greatest absolute correlation (0.95). The level of resistance of the hybrids varyied according to the race of the pathogen. The percentage of R, MR, MS and S of the hybrids to race II and XXXIII were 25 %, 25 %, 38 %, and 11 %, and 13 %, 37 %, 42 %, and 8 %, respectively. Nine (25 %) and five (13 %) hybrids were R to race II and XXXIII, respectively. Four hybrids (21, 30, 48 and 66) showed vertical resistance to races II and XXXIII. Possibly these hybrids have the resistance factor SH6, because they were resistant to race XXXIII v5,7,9. Leaf discs (%) with sporulating lesions can be used as a reference in future studyies of screening genotypes with horizontal resistance to C. canephora genotypes to leaf rust.
650 $aCoffea canephora
650 $aHemileia vastatrix
650 $aHorizontal resistance
650 $aPhysiological races
653 $aCafé Conilon
700 1 $aSOUZA NETO, P. N. de.
700 1 $aZAMBOLIM, E. M.
700 1 $aCAIXETA, E. T.
700 1 $aSAKIYAMA, N. S.
700 1 $aFERRÃO, R. G.
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