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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
02/12/2021 |
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Data da última atualização: |
02/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUSA, M. B. e; ANDRADE, L. R. B. de; SOUZA, E. H. de; ALVES, A. A. C.; OLIVEIRA, E. J. de. |
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Afiliação: |
MASSAINE BANDEIRA E SOUSA; LUCIANO ROGERIO BRAATZ DE ANDRADE; EVERTON HILO DE SOUZA, UFRB; ALFREDO AUGUSTO CUNHA ALVES, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Reproductive barriers in cassava: factors and implications for genetic improvement. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Plos One, November, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava breeding is hampered by high flower abortion rates that prevent efficient recombination among promising clones. To better understand the factors causing flower abortion and propose strategies to overcome them, we 1) analyzed the reproductive barriers to intraspecific crossing, 2) evaluated pollen-pistil interactions to maximize hand pollination efficiency, and 3) identified the population structure of elite parental clones. From 2016 to 2018, the abortion and fertilization rates of 5,748 hand crossings involving 91 parents and 157 progenies were estimated. We used 16,300 single nucleotide polymorphism markers to study the parents' population structure via discriminant analysis of principal components, and three clusters were identified. To test for male and female effects, we used a mixed model in which the environment (month and year) was fixed, while female and male (nested to female) were random effects. Regardless of the population structure, significant parental effects were identified for abortion and fertilization rates, suggesting the existence of reproductive barriers among certain cassava clones. Matching ability between cassava parents was significant for pollen grains that adhered to the stigma surface, germinated pollen grains, and the number of fertilized ovules. Non-additive genetic effects were important to the inheritance of these traits. Pollen viability and pollen-pistil interactions in cross- and self-pollination were also investigated to characterize pollen-stigma compatibility. Various events related to pollen tube growth dynamics indicated fertilization abnormalities. These abnormalities included the reticulated deposition of callose in the pollen tube, pollen tube growth cessation in a specific region of the stylet, and low pollen grain germination rate. Generally, pollen viability and stigma receptivity varied depending on the clone and flowering stage and were lost during flowering. This study provides novel insights into cassava reproduction that can assist in practical crossing and maximize the recombination of contrasting clones. MenosCassava breeding is hampered by high flower abortion rates that prevent efficient recombination among promising clones. To better understand the factors causing flower abortion and propose strategies to overcome them, we 1) analyzed the reproductive barriers to intraspecific crossing, 2) evaluated pollen-pistil interactions to maximize hand pollination efficiency, and 3) identified the population structure of elite parental clones. From 2016 to 2018, the abortion and fertilization rates of 5,748 hand crossings involving 91 parents and 157 progenies were estimated. We used 16,300 single nucleotide polymorphism markers to study the parents' population structure via discriminant analysis of principal components, and three clusters were identified. To test for male and female effects, we used a mixed model in which the environment (month and year) was fixed, while female and male (nested to female) were random effects. Regardless of the population structure, significant parental effects were identified for abortion and fertilization rates, suggesting the existence of reproductive barriers among certain cassava clones. Matching ability between cassava parents was significant for pollen grains that adhered to the stigma surface, germinated pollen grains, and the number of fertilized ovules. Non-additive genetic effects were important to the inheritance of these traits. Pollen viability and pollen-pistil interactions in cross- and self-pollination were also investigated to characte... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228421/1/Souza-et-al-PlosOne-2021-1.pdf
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Marc: |
LEADER 02619naa a2200181 a 4500
001 2137018
005 2021-12-02
008 2021 bl uuuu u00u1 u #d
100 1 $aSOUSA, M. B. e
245 $aReproductive barriers in cassava$bfactors and implications for genetic improvement.$h[electronic resource]
260 $c2021
520 $aCassava breeding is hampered by high flower abortion rates that prevent efficient recombination among promising clones. To better understand the factors causing flower abortion and propose strategies to overcome them, we 1) analyzed the reproductive barriers to intraspecific crossing, 2) evaluated pollen-pistil interactions to maximize hand pollination efficiency, and 3) identified the population structure of elite parental clones. From 2016 to 2018, the abortion and fertilization rates of 5,748 hand crossings involving 91 parents and 157 progenies were estimated. We used 16,300 single nucleotide polymorphism markers to study the parents' population structure via discriminant analysis of principal components, and three clusters were identified. To test for male and female effects, we used a mixed model in which the environment (month and year) was fixed, while female and male (nested to female) were random effects. Regardless of the population structure, significant parental effects were identified for abortion and fertilization rates, suggesting the existence of reproductive barriers among certain cassava clones. Matching ability between cassava parents was significant for pollen grains that adhered to the stigma surface, germinated pollen grains, and the number of fertilized ovules. Non-additive genetic effects were important to the inheritance of these traits. Pollen viability and pollen-pistil interactions in cross- and self-pollination were also investigated to characterize pollen-stigma compatibility. Various events related to pollen tube growth dynamics indicated fertilization abnormalities. These abnormalities included the reticulated deposition of callose in the pollen tube, pollen tube growth cessation in a specific region of the stylet, and low pollen grain germination rate. Generally, pollen viability and stigma receptivity varied depending on the clone and flowering stage and were lost during flowering. This study provides novel insights into cassava reproduction that can assist in practical crossing and maximize the recombination of contrasting clones.
650 $aMandioca
700 1 $aANDRADE, L. R. B. de
700 1 $aSOUZA, E. H. de
700 1 $aALVES, A. A. C.
700 1 $aOLIVEIRA, E. J. de
773 $tPlos One, November, 2021.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
08/02/2019 |
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Data da última atualização: |
12/02/2020 |
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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: |
BATISTA, C. de S.; SANTOS, J. P. dos; DITTGEN, C. L.; COLUSSI, R.; BASSINELLO, P. Z.; ELIAS, M. C.; VANIER, N. L. |
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Afiliação: |
CHRISTIN DE SOUZA BATISTA, UFPel; JAQUELINE POZZADA DOS SANTOS, UFPel; CAROLINE LAMBRECHT DITTGEN, UFPel; ROSANA COLUSSI, UFPel; PRISCILA ZACZUK BASSINELLO, CNPAF; MOACIR CARDOSO ELIAS, UFPel; NATHAN LEVIEN VANIER, UFPel. |
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Título: |
Impact of cooking temperature on the quality of quick cooking brown rice. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Food Chemistry, v. 286, p. 98-105, July 2019. |
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ISSN: |
0308-8146 |
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DOI: |
10.1016/j.foodchem.2019.01.187 |
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Idioma: |
Inglês |
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Conteúdo: |
Three cooking temperatures (72, 80, and 88 °C) were applied to two rice genotypes (Puitá Inta CL and INOV CL) for preparing quick cooking brown rice. Samples were analyzed for cooking time, color, scanning electron microscopy (SEM), damaged grains, amylose, protein content and extractability, differential scanning calorimetry (DSC), X-ray diffraction (XRD), sensory properties, and in vitro digestion. Cooking time was reduced from 23.0-23.6 to 5.5-6.9 min when the highest temperature was applied, depending on genotype. The greatest grain deformation was observed for treatments from Puitá Inta CL. XRD showed greater ability of brown rice from Puitá Inta CL to gelatinize at 88 °C. Appearance, texture, and flavor of quick cooking brown rice prepared at 88 °C was inferior to its brown rice counterparts. Starch digestibility decreased by around 20-22% in 88 °C-prepared-quick cooking brown rice. Lower digestibility values were determined for 88°C-treated-INOV CL, and were associated with grain integrity. |
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Thesagro: |
Arroz; Temperatura. |
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Thesaurus NAL: |
Cooking; In vitro digestion; Instant foods; Rice; Temperature. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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Marc: |
LEADER 01841naa a2200301 a 4500
001 2105746
005 2020-02-12
008 2019 bl uuuu u00u1 u #d
022 $a0308-8146
024 7 $a10.1016/j.foodchem.2019.01.187$2DOI
100 1 $aBATISTA, C. de S.
245 $aImpact of cooking temperature on the quality of quick cooking brown rice.$h[electronic resource]
260 $c2019
520 $aThree cooking temperatures (72, 80, and 88 °C) were applied to two rice genotypes (Puitá Inta CL and INOV CL) for preparing quick cooking brown rice. Samples were analyzed for cooking time, color, scanning electron microscopy (SEM), damaged grains, amylose, protein content and extractability, differential scanning calorimetry (DSC), X-ray diffraction (XRD), sensory properties, and in vitro digestion. Cooking time was reduced from 23.0-23.6 to 5.5-6.9 min when the highest temperature was applied, depending on genotype. The greatest grain deformation was observed for treatments from Puitá Inta CL. XRD showed greater ability of brown rice from Puitá Inta CL to gelatinize at 88 °C. Appearance, texture, and flavor of quick cooking brown rice prepared at 88 °C was inferior to its brown rice counterparts. Starch digestibility decreased by around 20-22% in 88 °C-prepared-quick cooking brown rice. Lower digestibility values were determined for 88°C-treated-INOV CL, and were associated with grain integrity.
650 $aCooking
650 $aIn vitro digestion
650 $aInstant foods
650 $aRice
650 $aTemperature
650 $aArroz
650 $aTemperatura
700 1 $aSANTOS, J. P. dos
700 1 $aDITTGEN, C. L.
700 1 $aCOLUSSI, R.
700 1 $aBASSINELLO, P. Z.
700 1 $aELIAS, M. C.
700 1 $aVANIER, N. L.
773 $tFood Chemistry$gv. 286, p. 98-105, July 2019.
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Embrapa Arroz e Feijão (CNPAF) |
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