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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
13/03/2018 |
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Data da última atualização: |
13/03/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MORAES, M. S.; TEIXEIRA, A. L.; RAMALHO, A. R.; ESPÍNDULA, M. C.; FERRÃO, M. A. G.; ROCHA, R. B. |
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Afiliação: |
Universidade Federal de Rondônia; EMBRAPA; EMBRAPA; EMBRAPA; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; EMBRAPA. |
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Título: |
Characterization of gametophytic self-incompatibility of superior clones of Coffea canephora |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 17, n. 1, p. 1-11, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
The ability to avoid self-pollination is a trait that evolved as a manner of reducing the deleterious effects of inbreeding in various allogamous plant species, including Coffea canephora. The aim of this study was to perform directed hybridizations to characterize the compatibility groups of superior C. canephora clones, since plant selection can reduce variability for this trait. For that purpose, directed hybridizations were carried out in cross arrangements using a balanced diallel without self-fertilization and without reciprocals. The genotypes evaluated were derived from open pollination and from directed hybridizations using Encapa03 as a male parent donor of pollen grains and Robusta640, Robusta 2258, and Robusta1675 as female parent receptors of pollen grains. To control the occurrence of type I and type II errors, the likelihood ratio test was used. Compatible crosses were predominant (73.7%). Compatible crosses exhibited a mean rate of fruit set of 44%, with amplitude from 26% to 77%. Of the total of 80 crosses performed, three crosses exhibited unexpected results according to the grouping proposed (P08 x P16, P09 x P15, P09 x P16). From the degree of kinship, the genealogy of the S gene and the segregation of the alleles from one generation to another was estimated. The genotypes P12, P14, and P10 exhibited the highest estimates of LOD score associated with their clustering in groups I, II, and III. These genotypes may be used as tester plants of their compatibility groups MenosThe ability to avoid self-pollination is a trait that evolved as a manner of reducing the deleterious effects of inbreeding in various allogamous plant species, including Coffea canephora. The aim of this study was to perform directed hybridizations to characterize the compatibility groups of superior C. canephora clones, since plant selection can reduce variability for this trait. For that purpose, directed hybridizations were carried out in cross arrangements using a balanced diallel without self-fertilization and without reciprocals. The genotypes evaluated were derived from open pollination and from directed hybridizations using Encapa03 as a male parent donor of pollen grains and Robusta640, Robusta 2258, and Robusta1675 as female parent receptors of pollen grains. To control the occurrence of type I and type II errors, the likelihood ratio test was used. Compatible crosses were predominant (73.7%). Compatible crosses exhibited a mean rate of fruit set of 44%, with amplitude from 26% to 77%. Of the total of 80 crosses performed, three crosses exhibited unexpected results according to the grouping proposed (P08 x P16, P09 x P15, P09 x P16). From the degree of kinship, the genealogy of the S gene and the segregation of the alleles from one generation to another was estimated. The genotypes P12, P14, and P10 exhibited the highest estimates of LOD score associated with their clustering in groups I, II, and III. These genotypes may be used as tester plants of their compatibi... Mostrar Tudo |
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Thesaurus NAL: |
Coffea canephora; EMCAPA; Gametophytic self-incompatibility; Plant breeding; ROBUSTA; Selection. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/3013/1/BRT-Artigocharacterization-of-gametophytic-selfincompatibility-of-superior-clones-of-coffea-canephora-ferrao.pdf
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Marc: |
LEADER 02256naa a2200253 a 4500
001 1019314
005 2018-03-13
008 2018 bl uuuu u00u1 u #d
100 1 $aMORAES, M. S.
245 $aCharacterization of gametophytic self-incompatibility of superior clones of Coffea canephora$h[electronic resource]
260 $c2018
520 $aThe ability to avoid self-pollination is a trait that evolved as a manner of reducing the deleterious effects of inbreeding in various allogamous plant species, including Coffea canephora. The aim of this study was to perform directed hybridizations to characterize the compatibility groups of superior C. canephora clones, since plant selection can reduce variability for this trait. For that purpose, directed hybridizations were carried out in cross arrangements using a balanced diallel without self-fertilization and without reciprocals. The genotypes evaluated were derived from open pollination and from directed hybridizations using Encapa03 as a male parent donor of pollen grains and Robusta640, Robusta 2258, and Robusta1675 as female parent receptors of pollen grains. To control the occurrence of type I and type II errors, the likelihood ratio test was used. Compatible crosses were predominant (73.7%). Compatible crosses exhibited a mean rate of fruit set of 44%, with amplitude from 26% to 77%. Of the total of 80 crosses performed, three crosses exhibited unexpected results according to the grouping proposed (P08 x P16, P09 x P15, P09 x P16). From the degree of kinship, the genealogy of the S gene and the segregation of the alleles from one generation to another was estimated. The genotypes P12, P14, and P10 exhibited the highest estimates of LOD score associated with their clustering in groups I, II, and III. These genotypes may be used as tester plants of their compatibility groups
650 $aCoffea canephora
650 $aEMCAPA
650 $aGametophytic self-incompatibility
650 $aPlant breeding
650 $aROBUSTA
650 $aSelection
700 1 $aTEIXEIRA, A. L.
700 1 $aRAMALHO, A. R.
700 1 $aESPÍNDULA, M. C.
700 1 $aFERRÃO, M. A. G.
700 1 $aROCHA, R. B.
773 $tGenetics and Molecular Research$gv. 17, n. 1, p. 1-11, 2018.
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
13/07/2020 |
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Data da última atualização: |
13/07/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RODRIGUES, W. R.; TOMAZ, M. A.; FERRÃO, M. A. G.; MARTINS, L. D.; COLODETTI, T.V.; BRINATE, S. V. B.; AMARAL, J. F. T.; SOBREIRA, F. M.; APOSTÓLICO, M. A. |
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Afiliação: |
W.N. Rodrigues; M.A. Tomaz; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; L.D. Martins; T. V. Colodetti; S.V.B. Brinate; J.F.T. Amaral; F.M. Sobreira; M.A. Apostólico. |
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Título: |
Biometry and diversity of Arabica coffee genotypes cultivated in a high density plant system. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 15, n. 1, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The present study was developed to respond to the need for an increase in crop yield in the mountain region of Caparaó (southern Espírito Santo State, Brazil), an area of traditional coffee production. This study aimed to analyze the diversity and characterize the crop yield of genotypes of Coffea arabica L. with potential for cultivation in high plant density systems. In addition, it also aimed to quantify the expression of agronomic traits in this cultivation system and provide information on the genotypes with the highest cultivation potential in the studied region. The experiment followed a randomized block design with 16 genotypes, four repetitions, and six plants per experimental plot. Plant spacing was 2.00 x 0.60 m, with a total of 8333 plants per hectare, representing a high-density cultivation system. Coffee plants were cultivated until the start of their reproductive phenological cycles and were evaluated along four complete reproductive cycles. Genotypes with high crop yield and beverage quality, short canopy, and rust resistance were selected. C. arabica genotypes showed variability in almost all characteristics. It was possible to identify different responses among genotypes grown in a high plant density cultivation system. Although the chlorophyll a content was similar among genotypes, the genotypes Acauã, Araponga MG1, Sacramento MG1, Tupi, and Catuaí IAC 44 showed a higher chlorophyll b content than the other genotypes. Among these, Sacramento MG1 also showed high leafiness and growth of vegetative structures, whereas Araponga MG1, Pau-Brasil MG1, and Tupi showed high fruit production. In addition, Araponga MG1 had also a higher and more stable crop yield over the years. MenosThe present study was developed to respond to the need for an increase in crop yield in the mountain region of Caparaó (southern Espírito Santo State, Brazil), an area of traditional coffee production. This study aimed to analyze the diversity and characterize the crop yield of genotypes of Coffea arabica L. with potential for cultivation in high plant density systems. In addition, it also aimed to quantify the expression of agronomic traits in this cultivation system and provide information on the genotypes with the highest cultivation potential in the studied region. The experiment followed a randomized block design with 16 genotypes, four repetitions, and six plants per experimental plot. Plant spacing was 2.00 x 0.60 m, with a total of 8333 plants per hectare, representing a high-density cultivation system. Coffee plants were cultivated until the start of their reproductive phenological cycles and were evaluated along four complete reproductive cycles. Genotypes with high crop yield and beverage quality, short canopy, and rust resistance were selected. C. arabica genotypes showed variability in almost all characteristics. It was possible to identify different responses among genotypes grown in a high plant density cultivation system. Although the chlorophyll a content was similar among genotypes, the genotypes Acauã, Araponga MG1, Sacramento MG1, Tupi, and Catuaí IAC 44 showed a higher chlorophyll b content than the other genotypes. Among these, Sacramento MG1 also showe... Mostrar Tudo |
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Palavras-Chave: |
Café; Caparaó; Espírito Santo (Estado); Produção agrícola. |
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Thesagro: |
Café; Coffea arabica; Genética. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/4046/1/biomety-ferrao.pdf
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Marc: |
LEADER 02578naa a2200301 a 4500
001 1022240
005 2020-07-13
008 2016 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, W. R.
245 $aBiometry and diversity of Arabica coffee genotypes cultivated in a high density plant system.$h[electronic resource]
260 $c2016
520 $aThe present study was developed to respond to the need for an increase in crop yield in the mountain region of Caparaó (southern Espírito Santo State, Brazil), an area of traditional coffee production. This study aimed to analyze the diversity and characterize the crop yield of genotypes of Coffea arabica L. with potential for cultivation in high plant density systems. In addition, it also aimed to quantify the expression of agronomic traits in this cultivation system and provide information on the genotypes with the highest cultivation potential in the studied region. The experiment followed a randomized block design with 16 genotypes, four repetitions, and six plants per experimental plot. Plant spacing was 2.00 x 0.60 m, with a total of 8333 plants per hectare, representing a high-density cultivation system. Coffee plants were cultivated until the start of their reproductive phenological cycles and were evaluated along four complete reproductive cycles. Genotypes with high crop yield and beverage quality, short canopy, and rust resistance were selected. C. arabica genotypes showed variability in almost all characteristics. It was possible to identify different responses among genotypes grown in a high plant density cultivation system. Although the chlorophyll a content was similar among genotypes, the genotypes Acauã, Araponga MG1, Sacramento MG1, Tupi, and Catuaí IAC 44 showed a higher chlorophyll b content than the other genotypes. Among these, Sacramento MG1 also showed high leafiness and growth of vegetative structures, whereas Araponga MG1, Pau-Brasil MG1, and Tupi showed high fruit production. In addition, Araponga MG1 had also a higher and more stable crop yield over the years.
650 $aCafé
650 $aCoffea arabica
650 $aGenética
653 $aCafé
653 $aCaparaó
653 $aEspírito Santo (Estado)
653 $aProdução agrícola
700 1 $aTOMAZ, M. A.
700 1 $aFERRÃO, M. A. G.
700 1 $aMARTINS, L. D.
700 1 $aCOLODETTI, T.V.
700 1 $aBRINATE, S. V. B.
700 1 $aAMARAL, J. F. T.
700 1 $aSOBREIRA, F. M.
700 1 $aAPOSTÓLICO, M. A.
773 $tGenetics and Molecular Research$gv. 15, n. 1, 2016.
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Biblioteca Rui Tendinha (BRT) |
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