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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
13/08/2021 |
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Data da última atualização: |
13/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHAVES, A. L. A.; CHIAVEGATTO, R. B.; FERREIRA, M. T. M.; ROCHA, L. C.; AZEVEDO, A. L. S.; BENITES, F. R. G.; TECHIO, V. H. |
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Afiliação: |
ANA LUISA ARANTES CHAVES, Universidade Federal de Lavras; RAQUEL BEZERRA CHIAVEGATTO, Universidade Federal de Lavras; MARCO TULIO MENDES FERREIRA, Universidade Federal de Lavras; LAIANE CORSINI ROCHA, Universidade Federal de Lavras; ANA LUISA SOUSA AZEVEDO, CNPGL; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; VÂNIA HELENA TECHIO, Universidade Federal de Lavras. |
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Título: |
Karyotype and leaf epidermis histology traits of Digitaria abyssinica (Hochst. Ex A. Rich.) (Poaceae). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v. 72, n. 4, p. 1093-1101, 2020. |
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DOI: |
https://doi.org/10.2478/s11756-020-00630-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Digitaria abyssinica (African couchgrass) has economic potential as forage. This species is taxonomically complex, with a high number of synonyms, basic chromosome number x = 9, and diploid and tetraploid cytotypes. Anatomical, histological, and cytotaxonomic studies may contribute to the taxonomic description of this species and reveal its polyploidization and hybridization events. To this end, this study aimed to characterize the karyotype and leaf epidermis histology of two D. abyssinica genotypes. Chromosome characterization was performed based on chromosome banding using chromomycin A (CMA) and 4,6-diamidino-2-phenylindole (DAPI) and identification of 35S and 5S rDNA sites by fluorescent in situ hybridization. Nuclear DNA quantification was performed by flow cytometry. Paradermal sections were obtained for the leaf epidermis study by light and electron microscopy. The results confirmed that both genotypes are tetraploid (2n = 36). The number and distribution of 35S and 5S rDNA sites suggest the occurrence of postpolyploidization structural chromosomal changes or hybridization processes. Despite intraspecific variation in the number of 5S rDNA sites and CMA+/DAPI+ bands, no changes were identified in karyotypical symmetry or genome size. Leaf epidermis histology traits and cytogenetic data can support breeding programs and germplasm banks in identifying species or cultivars. |
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Palavras-Chave: |
Caracterização cromossômica; Chromosomal polymorphism; Heterocromatina; Polimorfismo cromossômico. |
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Thesagro: |
Citotaxonomia; Forragem; Grama; Poliploidia. |
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Thesaurus Nal: |
Heterochromatin; Polyploidy. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225178/1/Karyotype-leaf.pdf
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Marc: |
LEADER 02430naa a2200325 a 4500
001 2133568
005 2021-08-13
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.2478/s11756-020-00630-8$2DOI
100 1 $aCHAVES, A. L. A.
245 $aKaryotype and leaf epidermis histology traits of Digitaria abyssinica (Hochst. Ex A. Rich.) (Poaceae).$h[electronic resource]
260 $c2020
520 $aDigitaria abyssinica (African couchgrass) has economic potential as forage. This species is taxonomically complex, with a high number of synonyms, basic chromosome number x = 9, and diploid and tetraploid cytotypes. Anatomical, histological, and cytotaxonomic studies may contribute to the taxonomic description of this species and reveal its polyploidization and hybridization events. To this end, this study aimed to characterize the karyotype and leaf epidermis histology of two D. abyssinica genotypes. Chromosome characterization was performed based on chromosome banding using chromomycin A (CMA) and 4,6-diamidino-2-phenylindole (DAPI) and identification of 35S and 5S rDNA sites by fluorescent in situ hybridization. Nuclear DNA quantification was performed by flow cytometry. Paradermal sections were obtained for the leaf epidermis study by light and electron microscopy. The results confirmed that both genotypes are tetraploid (2n = 36). The number and distribution of 35S and 5S rDNA sites suggest the occurrence of postpolyploidization structural chromosomal changes or hybridization processes. Despite intraspecific variation in the number of 5S rDNA sites and CMA+/DAPI+ bands, no changes were identified in karyotypical symmetry or genome size. Leaf epidermis histology traits and cytogenetic data can support breeding programs and germplasm banks in identifying species or cultivars.
650 $aHeterochromatin
650 $aPolyploidy
650 $aCitotaxonomia
650 $aForragem
650 $aGrama
650 $aPoliploidia
653 $aCaracterização cromossômica
653 $aChromosomal polymorphism
653 $aHeterocromatina
653 $aPolimorfismo cromossômico
700 1 $aCHIAVEGATTO, R. B.
700 1 $aFERREIRA, M. T. M.
700 1 $aROCHA, L. C.
700 1 $aAZEVEDO, A. L. S.
700 1 $aBENITES, F. R. G.
700 1 $aTECHIO, V. H.
773 $tArquivo Brasileiro de Medicina Veterinária e Zootecnia$gv. 72, n. 4, p. 1093-1101, 2020.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Unidades Centrais. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Unidades Centrais. |
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Data corrente: |
24/07/2019 |
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Data da última atualização: |
11/12/2019 |
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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: |
JESUS, K. R. E. de; TORQUATO, S. A.; MACHADO, P. G.; ZORZO, C. R. B.; CARDOSO, B. O.; LEAL, M. R. L. V.; PICOLI, M. C. A.; RAMOS, R. C.; DALMAGO, G. A.; CAPITANI, D. H. D.; DUFT, D. G.; SUÁREZ, J. G.; PIEROZZI JUNIOR, I.; TREVELIN, L. C.; MOREIRA, D. A. |
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Afiliação: |
KATIA REGINA EVARISTO DE JESUS, SIRE; SÉRGIO ALVES TORQUATO, Apta; PEDRO GERBER MACHADO, Unicamp; CATIANA REGINA BRUMATTI ZORZO, Embrapa; BRUNO OLIVEIRA CARDOSO, Embrapa; MANOEL REGIS LIMA VERDE LEAL, Nipe/Unicamp; MICHELLE CRISTINA ARAUJO PICOLI, Inpe; REJANE CECILIA RAMOS, Apta; GENEI ANTONIO DALMAGO, CNPT; DANIEL HENRIQUE DARIO CAPITANI, FCA/Unicamp; DANIEL GARBELLINI DUFT, CTBE, CNPEM; JOHN GARAVITO SUÁREZ, ICMC/USP; IVO PIEROZZI JUNIOR, CNPTIA; LUIS CARLOS TREVELIN, UFSCar; DILVAN A. MOREIRA, ICMC/USP. |
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Título: |
Sustainability assessment of sugarcane production systems: SustenAgro Decision Support System. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Environmental Development, v. 32, p. 1-16, Dec. 2019. Article 100444 |
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DOI: |
https://doi.org/10.1016/j.envdev.2019.05.003 |
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Idioma: |
Inglês |
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Conteúdo: |
The concept of agricultural sustainability could be summarized as the ability of agricultural systems to maintain their production in the long term without depleting the available resources for future uses. This study proposes a decision support system for assessing the sustainability of the agricultural production and industrial processing of sugarcane in south-central Brazil by providing information structured according to criteria and indicators in the environmental, economic, and social dimensions. The information is organized using three tools: i) spreadsheets for evaluating technological efficiency, production efficiency and costs (Sugarcane Agro-industrial System Efficiency Index); ii) spreadsheet for evaluating sustainability indicators and generating the Sustainability Index; and iii) a combination of both indexes to construct the Sustainability Matrix and Semaphore, and to provide recommendations for sustainability management. The proposed decision support system contains a software (version 1.0, wherein all the information is available in electronic format, which helps to maximize assessment accuracy). Therefore, strategies such as the SustenAgro system, which helps to manage and to guide public policies, can improve the sector and enable suppliers and mills to ensure sustainable growth. |
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Palavras-Chave: |
Agricultural production system; Avaliação de sustentabilidade; Avaliação tecnológica; Processamento industrial da cana-de-açúcar; Sistema de produção agrícola; Sistema de suporte à decisão; Sustainability assessment; Sustentabilidade agrícola; Technological efficiency. |
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Thesagro: |
Cana de Açúcar. |
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Thesaurus NAL: |
Decision support systems; Sugarcane. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02763naa a2200445 a 4500
001 2110858
005 2019-12-11
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.envdev.2019.05.003$2DOI
100 1 $aJESUS, K. R. E. de
245 $aSustainability assessment of sugarcane production systems$bSustenAgro Decision Support System.$h[electronic resource]
260 $c2019
520 $aThe concept of agricultural sustainability could be summarized as the ability of agricultural systems to maintain their production in the long term without depleting the available resources for future uses. This study proposes a decision support system for assessing the sustainability of the agricultural production and industrial processing of sugarcane in south-central Brazil by providing information structured according to criteria and indicators in the environmental, economic, and social dimensions. The information is organized using three tools: i) spreadsheets for evaluating technological efficiency, production efficiency and costs (Sugarcane Agro-industrial System Efficiency Index); ii) spreadsheet for evaluating sustainability indicators and generating the Sustainability Index; and iii) a combination of both indexes to construct the Sustainability Matrix and Semaphore, and to provide recommendations for sustainability management. The proposed decision support system contains a software (version 1.0, wherein all the information is available in electronic format, which helps to maximize assessment accuracy). Therefore, strategies such as the SustenAgro system, which helps to manage and to guide public policies, can improve the sector and enable suppliers and mills to ensure sustainable growth.
650 $aDecision support systems
650 $aSugarcane
650 $aCana de Açúcar
653 $aAgricultural production system
653 $aAvaliação de sustentabilidade
653 $aAvaliação tecnológica
653 $aProcessamento industrial da cana-de-açúcar
653 $aSistema de produção agrícola
653 $aSistema de suporte à decisão
653 $aSustainability assessment
653 $aSustentabilidade agrícola
653 $aTechnological efficiency
700 1 $aTORQUATO, S. A.
700 1 $aMACHADO, P. G.
700 1 $aZORZO, C. R. B.
700 1 $aCARDOSO, B. O.
700 1 $aLEAL, M. R. L. V.
700 1 $aPICOLI, M. C. A.
700 1 $aRAMOS, R. C.
700 1 $aDALMAGO, G. A.
700 1 $aCAPITANI, D. H. D.
700 1 $aDUFT, D. G.
700 1 $aSUÁREZ, J. G.
700 1 $aPIEROZZI JUNIOR, I.
700 1 $aTREVELIN, L. C.
700 1 $aMOREIRA, D. A.
773 $tEnvironmental Development$gv. 32, p. 1-16, Dec. 2019. Article 100444
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