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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
06/10/2017 |
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Data da última atualização: |
15/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, E. H. de; VERSIEUX, L. M.; SOUZA, F. V. D.; ROSSI, M. L.; COSTA, M. A. P. de C.; MARTINELLI, A. P. |
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Afiliação: |
EVERTON HILO DE SOUZA, USP; LEONARDO M. VERSIEUX, UFRN; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; MONICA LANZONI ROSSI, USP; MARIA ANGÉLICA PEREIRA DE CARVALHO COSTA, UFRB; ADRIANA PINHEIRO MARTINELLI, USP. |
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Título: |
Interspecific and intergeneric hybridization in Bromeliaceae and their relationships to breeding systems. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Scientia Horticulturae, N.223, p.53-61, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Plant hybridization allows for the creation of new genotypes playing a strategic role in the development of new cultivars of interest for the horticultural trade, and is a central phenomenon in plant speciation processes. We worked with a plant family known as a case of Neotropical adaptive radiation, characterizing the reproductive systems selected species. This study aimed to identify the reproductive systems of sixteen bromeliad species, and to evaluate potential reproductive barriers in interspecific and intergeneric crosses. A total of 931 interspecific and intergeneric hybridization crosses were conducted in 80 different combinations involving 16 species belonging to five genera Aechmea, Ananas, Pseudananas, Alcantarea, and Vriesea. Reproductive systems were determined by controlled pollinations, and autogamy or self-incompatibility indexes. Fluorescence microscopy was used to evaluate pollen tube growth in the pistil. Seed germination was evaluated for each treatment. Over half of the species showed evidences of self-incompatibility: Aechmea bicolor, Ae. fasciata, Ae. nudicaulis, Ananas ananassoides, An. bracteatus, An. lucidus, An. parguazensis, Vriesea carinata, and V. paraibica. Among the selfcompatible species, Ae. bromeliifolia, Ae. distichantha, and Pseudananas sagenarius presented autogamy. Alcantarea nahoumii, V. friburgensis, V. michaelii, and V. simplex exhibited no autogamy thus requiring pollinators. Agamospermy was observed in Ae. bromeliifolia, and Ae. distichantha. Crosses were successful in 43% of the attempts, corresponding to 32% of the species of the Ananas genus. Among the intergeneric crosses, only V. michaelii x Al. nahoumii and V. simplex x Al. nahoumii succeeded. Possible causes of self-incompatibility and incongruity in these crosses are related to different impediments to the pollen tube growth, such as an irregular deposition of callose on pollen tube; curling and arrest of pollen tube growth in the style, among others. It is suggested that the self-incompatibility is gametophytic, avoiding self-fertilization. MenosPlant hybridization allows for the creation of new genotypes playing a strategic role in the development of new cultivars of interest for the horticultural trade, and is a central phenomenon in plant speciation processes. We worked with a plant family known as a case of Neotropical adaptive radiation, characterizing the reproductive systems selected species. This study aimed to identify the reproductive systems of sixteen bromeliad species, and to evaluate potential reproductive barriers in interspecific and intergeneric crosses. A total of 931 interspecific and intergeneric hybridization crosses were conducted in 80 different combinations involving 16 species belonging to five genera Aechmea, Ananas, Pseudananas, Alcantarea, and Vriesea. Reproductive systems were determined by controlled pollinations, and autogamy or self-incompatibility indexes. Fluorescence microscopy was used to evaluate pollen tube growth in the pistil. Seed germination was evaluated for each treatment. Over half of the species showed evidences of self-incompatibility: Aechmea bicolor, Ae. fasciata, Ae. nudicaulis, Ananas ananassoides, An. bracteatus, An. lucidus, An. parguazensis, Vriesea carinata, and V. paraibica. Among the selfcompatible species, Ae. bromeliifolia, Ae. distichantha, and Pseudananas sagenarius presented autogamy. Alcantarea nahoumii, V. friburgensis, V. michaelii, and V. simplex exhibited no autogamy thus requiring pollinators. Agamospermy was observed in Ae. bromeliifolia, and Ae. d... Mostrar Tudo |
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Thesagro: |
Bromélia; Bromeliaceae. |
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Categoria do assunto: |
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Marc: |
LEADER 02698naa a2200205 a 4500
001 2076828
005 2017-11-15
008 2017 bl uuuu u00u1 u #d
100 1 $aSOUZA, E. H. de
245 $aInterspecific and intergeneric hybridization in Bromeliaceae and their relationships to breeding systems.$h[electronic resource]
260 $c2017
520 $aPlant hybridization allows for the creation of new genotypes playing a strategic role in the development of new cultivars of interest for the horticultural trade, and is a central phenomenon in plant speciation processes. We worked with a plant family known as a case of Neotropical adaptive radiation, characterizing the reproductive systems selected species. This study aimed to identify the reproductive systems of sixteen bromeliad species, and to evaluate potential reproductive barriers in interspecific and intergeneric crosses. A total of 931 interspecific and intergeneric hybridization crosses were conducted in 80 different combinations involving 16 species belonging to five genera Aechmea, Ananas, Pseudananas, Alcantarea, and Vriesea. Reproductive systems were determined by controlled pollinations, and autogamy or self-incompatibility indexes. Fluorescence microscopy was used to evaluate pollen tube growth in the pistil. Seed germination was evaluated for each treatment. Over half of the species showed evidences of self-incompatibility: Aechmea bicolor, Ae. fasciata, Ae. nudicaulis, Ananas ananassoides, An. bracteatus, An. lucidus, An. parguazensis, Vriesea carinata, and V. paraibica. Among the selfcompatible species, Ae. bromeliifolia, Ae. distichantha, and Pseudananas sagenarius presented autogamy. Alcantarea nahoumii, V. friburgensis, V. michaelii, and V. simplex exhibited no autogamy thus requiring pollinators. Agamospermy was observed in Ae. bromeliifolia, and Ae. distichantha. Crosses were successful in 43% of the attempts, corresponding to 32% of the species of the Ananas genus. Among the intergeneric crosses, only V. michaelii x Al. nahoumii and V. simplex x Al. nahoumii succeeded. Possible causes of self-incompatibility and incongruity in these crosses are related to different impediments to the pollen tube growth, such as an irregular deposition of callose on pollen tube; curling and arrest of pollen tube growth in the style, among others. It is suggested that the self-incompatibility is gametophytic, avoiding self-fertilization.
650 $aBromélia
650 $aBromeliaceae
700 1 $aVERSIEUX, L. M.
700 1 $aSOUZA, F. V. D.
700 1 $aROSSI, M. L.
700 1 $aCOSTA, M. A. P. de C.
700 1 $aMARTINELLI, A. P.
773 $tScientia Horticulturae, N.223, p.53-61, 2017.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
30/11/2000 |
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Data da última atualização: |
24/09/2008 |
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Autoria: |
FOSTER, R. B.; POTT, V. J.; SALIS, S. M. de. |
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Afiliação: |
Field Museu. Botany Department (Chigago, IL); EMBRAPA. Centro de Pesquisa Agropecuária do Pantanal (Corumba, MS). |
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Título: |
Description of the vegetation of the Rio Negro, Pantanal, Mato Grosso do Sul, Brasil. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: WILLINK, P.W.; CHERNOFF, B.; ALONSO, L.E.; MONTAMBAULT, J.R.; LOURIVAL, R., ed. A Biological assessment of the aquatic ecosystem of the Pantanal, Mato Grosso do Sul, Brasil. Washington, DC: Conservation International, 2000. capitulo 3, |
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Páginas: |
p.44-48. |
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Série: |
(Conservation International. RAP Bulletin of Biological Assessement, 18). |
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ISBN: |
1-881173-35-6 |
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Idioma: |
Inglês |
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Notas: |
Titulo em portugues: Descricao da vegetacao do Rio Negro, Pantanal: Mato Grosso do sul, Brasil. AQUARAP 1998. |
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Conteúdo: |
Thirty sites along the Rio Negro and Rio Taboco were sampled. The Upper Rio Negro region has a typical 20 meter strip of evergreen gallery forest (mata ciliar) growing along the river, while plants more closely associated with cloud forests grow around permanent waterfalls. The distribution and conservation status of these plants - including Begoniaceae, Gesneriaceae, Centropogon (Campanulaceae), Peperomia (Piperaceae), Pitcairnea (Bromeliaceae), and numerous ferns and mosses - should be studied. Althouth the active rivers harbor very little aquatic vegetation, in the backwaters the aquatic plant species proliferate into huge mats dominated by any of a dozen different emergent species, and (in the deeper water) by the floating plant species. The backwaters of the floodplain of the Middle Rio Negro (excluding the vazantes and baias) with high-density stands of aquatic plants, are also of special importance as breeding grounds for the fishes and macrocrustaceans. With respect to woody plants, the Cambara - probably the most important timber species of the Pantanal, which also has medicinal properties - can be seen in abundance colonizing the flooded savanna terraces. However, its regeneration on the floodplain is very spotty. Most of the large Cambara individuals on the floodplain (based on several hundred trees checked) seem to be recently dead or very unhealthy, with many dead small branches. This is probably caused by a natural die-off which may be hastened by a large quantity of guano left by birds using the dead branches as roosts. The formation of cordilheiras, baias and salinas seems to be unique to the Nhecolandia region of the southern Pantanal, between the Rio Negro and the Rio Taquari to the north. No other area of the Pantanal - or of the world - has such topographic or ecological systems. The baias harbor great concentrations of aquatic plants, and are remarkable in the radical difference in aquatic vegetation from one baia to the next. Physical and chemical factors clearly play a role, as evidenced by the dominance of Paspalum vaginatum, a plant of ocean beaches, on the sandy shores of the salinas. Aquatic plants were rare in the upper sites sampled, except for the few amphibious species on the tiny beaches, but they were common in the lowest sites, on narrow, backwater arms of the river, which were covered with floating mats (but no emergents). In contrast, both sites sampled on the Rio Negrinho - a backwater flooded pasture and a swamp - had extensive mats of floating and emergent aquatic plants. MenosThirty sites along the Rio Negro and Rio Taboco were sampled. The Upper Rio Negro region has a typical 20 meter strip of evergreen gallery forest (mata ciliar) growing along the river, while plants more closely associated with cloud forests grow around permanent waterfalls. The distribution and conservation status of these plants - including Begoniaceae, Gesneriaceae, Centropogon (Campanulaceae), Peperomia (Piperaceae), Pitcairnea (Bromeliaceae), and numerous ferns and mosses - should be studied. Althouth the active rivers harbor very little aquatic vegetation, in the backwaters the aquatic plant species proliferate into huge mats dominated by any of a dozen different emergent species, and (in the deeper water) by the floating plant species. The backwaters of the floodplain of the Middle Rio Negro (excluding the vazantes and baias) with high-density stands of aquatic plants, are also of special importance as breeding grounds for the fishes and macrocrustaceans. With respect to woody plants, the Cambara - probably the most important timber species of the Pantanal, which also has medicinal properties - can be seen in abundance colonizing the flooded savanna terraces. However, its regeneration on the floodplain is very spotty. Most of the large Cambara individuals on the floodplain (based on several hundred trees checked) seem to be recently dead or very unhealthy, with many dead small branches. This is probably caused by a natural die-off which may be hastened by a large quant... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Conservation; Descricao; Description; Mato Grosso do Sul; Rio Negro. |
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Thesagro: |
Botânica; Cambara; Conservação; Drenagem; Flora; Pesquisa; Planta Aquatica; Planta Lenhosa; Vegetação. |
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Thesaurus NAL: |
aquatic plants; botany; Brazil; drainage; Pantanal; research; vegetation; woody plants. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04051naa a2200469 a 4500
001 1804354
005 2008-09-24
008 2000 bl uuuu u00u1 u #d
020 $a1-881173-35-6
100 1 $aFOSTER, R. B.
245 $aDescription of the vegetation of the Rio Negro, Pantanal, Mato Grosso do Sul, Brasil.
260 $c2000
300 $ap.44-48.
490 $a(Conservation International. RAP Bulletin of Biological Assessement, 18).
500 $aTitulo em portugues: Descricao da vegetacao do Rio Negro, Pantanal: Mato Grosso do sul, Brasil. AQUARAP 1998.
520 $aThirty sites along the Rio Negro and Rio Taboco were sampled. The Upper Rio Negro region has a typical 20 meter strip of evergreen gallery forest (mata ciliar) growing along the river, while plants more closely associated with cloud forests grow around permanent waterfalls. The distribution and conservation status of these plants - including Begoniaceae, Gesneriaceae, Centropogon (Campanulaceae), Peperomia (Piperaceae), Pitcairnea (Bromeliaceae), and numerous ferns and mosses - should be studied. Althouth the active rivers harbor very little aquatic vegetation, in the backwaters the aquatic plant species proliferate into huge mats dominated by any of a dozen different emergent species, and (in the deeper water) by the floating plant species. The backwaters of the floodplain of the Middle Rio Negro (excluding the vazantes and baias) with high-density stands of aquatic plants, are also of special importance as breeding grounds for the fishes and macrocrustaceans. With respect to woody plants, the Cambara - probably the most important timber species of the Pantanal, which also has medicinal properties - can be seen in abundance colonizing the flooded savanna terraces. However, its regeneration on the floodplain is very spotty. Most of the large Cambara individuals on the floodplain (based on several hundred trees checked) seem to be recently dead or very unhealthy, with many dead small branches. This is probably caused by a natural die-off which may be hastened by a large quantity of guano left by birds using the dead branches as roosts. The formation of cordilheiras, baias and salinas seems to be unique to the Nhecolandia region of the southern Pantanal, between the Rio Negro and the Rio Taquari to the north. No other area of the Pantanal - or of the world - has such topographic or ecological systems. The baias harbor great concentrations of aquatic plants, and are remarkable in the radical difference in aquatic vegetation from one baia to the next. Physical and chemical factors clearly play a role, as evidenced by the dominance of Paspalum vaginatum, a plant of ocean beaches, on the sandy shores of the salinas. Aquatic plants were rare in the upper sites sampled, except for the few amphibious species on the tiny beaches, but they were common in the lowest sites, on narrow, backwater arms of the river, which were covered with floating mats (but no emergents). In contrast, both sites sampled on the Rio Negrinho - a backwater flooded pasture and a swamp - had extensive mats of floating and emergent aquatic plants.
650 $aaquatic plants
650 $abotany
650 $aBrazil
650 $adrainage
650 $aPantanal
650 $aresearch
650 $avegetation
650 $awoody plants
650 $aBotânica
650 $aCambara
650 $aConservação
650 $aDrenagem
650 $aFlora
650 $aPesquisa
650 $aPlanta Aquatica
650 $aPlanta Lenhosa
650 $aVegetação
653 $aBrasil
653 $aConservation
653 $aDescricao
653 $aDescription
653 $aMato Grosso do Sul
653 $aRio Negro
700 1 $aPOTT, V. J.
700 1 $aSALIS, S. M. de
773 $tIn: WILLINK, P.W.; CHERNOFF, B.; ALONSO, L.E.; MONTAMBAULT, J.R.; LOURIVAL, R., ed. A Biological assessment of the aquatic ecosystem of the Pantanal, Mato Grosso do Sul, Brasil. Washington, DC: Conservation International, 2000. capitulo 3
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