| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
|
Data corrente: |
30/06/2010 |
|
Data da última atualização: |
18/11/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
FERREIRA, C. R.; BURGSTALLER, J. P.; PERECIN, F.; GARCIA, J. M.; CHIARATTI, M. R.; MÉO, S. C.; MULLER, M.; SMITH, L. C.; MEIRELLES, F. V.; STEINBORN, R. |
|
Afiliação: |
CHRISTINA RAMIRES FERREIRA, UNESP-JABOTICABAL; JORG PATRICK BURGSTALLER, UNIVERSTIY OF VETERINARY MEDICINE - VIENNA; FELIPE PERECIN, UNESP - JABOTICABAL; JOAQUIM MANSANO GARCIA, UNESP - JABOTICABAL; MARCOS ROBERTO CHIARATTI, USP - PIRASSUNUNGA; SIMONE CRISTINA MÉO, CPPSE; MATHIAS MULLER, UNIVERSITY OF VETERINARY MEDICINE - VIENNA; LAWRENCE CHARLES SMITH, UNIVERSITE DE MONTREAL - QUEBEC; FLÁVIO VIEIRA MEIRELLES, USP - PIRASSUNUNGA; RALF STEINBORN, UNIVERSITY OF VETERINARY MEDICINE - VIENNA. |
|
Título: |
Pronounced segregation of donor mitochondria introduced by bovine Ooplasmic tranfer to the female germ-line. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
Biology of Reproduction, v. 82, n. 03, p. 563-571, mar. 2010. |
|
DOI: |
https://doi.org/10.1095/biolreprod.109.080564 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Ooplasmic transfer (01) has been used in basic mouse research for studying lhe segregation of mtDNA, as well as in human assisted reproduction for improving embryo development in cases of persistent developmental failure. Using cattle as a large-animal model, we demonstrate that lhe moderate amount of mitochondria introduced by OT is transmitted to lhe offspring's oocytes; e.g., modifies lhe germ fine. The danar mtDNA was detectable in 25% and 65% of oocytes collected from two females. Its high variation in heteroplasmic oocytes, ranging from 1.1% to 33.5% and from 0.4% to 15.5%, can be explained by random genetic drift in lhe female germ line. Centrifugation-mediated enrichment of mitochondria il1 lhe pole zone of lhe recipient zygote's ooplasm and its substitution by danar ooplasm led to elevated proportions of danar mtDNA in reconstructed zygotes compared with zygotes produced by standard OT (23.6% :!: 9.6% versus 12.1% :!: 4.5%; P <0.0001). We also characterized lhe proliferation of mitochondria from lhe OT parents-the recipient zygote (Bos primigenius taurus type) and lhe danar ooplasm (B. primigenius indicus type). Regression analysis performed for 57 tissue samples collected from lhe seven OT fetuses at different points during fetal development found a decreasing proportion of donor mt DNA (r2=0.78). This indicates a preferred proliferation of recipient of the OT recipeint expressinf a B. primigenius indicus phenotype. |
|
Palavras-Chave: |
Bovine; Developmental biology; Embryo; Gamete biology; Ooplasmic. |
|
Thesagro: |
DNA. |
|
Categoria do assunto: |
G Melhoramento Genético |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28805/1/PROCISCMN2010.00002.pdf
|
|
Marc: |
LEADER 02370naa a2200313 a 4500
001 1856388
005 2022-11-18
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1095/biolreprod.109.080564$2DOI
100 1 $aFERREIRA, C. R.
245 $aPronounced segregation of donor mitochondria introduced by bovine Ooplasmic tranfer to the female germ-line.$h[electronic resource]
260 $c2010
520 $aOoplasmic transfer (01) has been used in basic mouse research for studying lhe segregation of mtDNA, as well as in human assisted reproduction for improving embryo development in cases of persistent developmental failure. Using cattle as a large-animal model, we demonstrate that lhe moderate amount of mitochondria introduced by OT is transmitted to lhe offspring's oocytes; e.g., modifies lhe germ fine. The danar mtDNA was detectable in 25% and 65% of oocytes collected from two females. Its high variation in heteroplasmic oocytes, ranging from 1.1% to 33.5% and from 0.4% to 15.5%, can be explained by random genetic drift in lhe female germ line. Centrifugation-mediated enrichment of mitochondria il1 lhe pole zone of lhe recipient zygote's ooplasm and its substitution by danar ooplasm led to elevated proportions of danar mtDNA in reconstructed zygotes compared with zygotes produced by standard OT (23.6% :!: 9.6% versus 12.1% :!: 4.5%; P <0.0001). We also characterized lhe proliferation of mitochondria from lhe OT parents-the recipient zygote (Bos primigenius taurus type) and lhe danar ooplasm (B. primigenius indicus type). Regression analysis performed for 57 tissue samples collected from lhe seven OT fetuses at different points during fetal development found a decreasing proportion of donor mt DNA (r2=0.78). This indicates a preferred proliferation of recipient of the OT recipeint expressinf a B. primigenius indicus phenotype.
650 $aDNA
653 $aBovine
653 $aDevelopmental biology
653 $aEmbryo
653 $aGamete biology
653 $aOoplasmic
700 1 $aBURGSTALLER, J. P.
700 1 $aPERECIN, F.
700 1 $aGARCIA, J. M.
700 1 $aCHIARATTI, M. R.
700 1 $aMÉO, S. C.
700 1 $aMULLER, M.
700 1 $aSMITH, L. C.
700 1 $aMEIRELLES, F. V.
700 1 $aSTEINBORN, R.
773 $tBiology of Reproduction$gv. 82, n. 03, p. 563-571, mar. 2010.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Café. |
|
Data corrente: |
23/05/2022 |
|
Data da última atualização: |
23/05/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
VIANA, M. T. R.; AZEVEDO, H. P. A. de; PEREIRA, F. A. C.; CARVALHO, M. A. de F.; GUIMARÃES, R. J. |
|
Afiliação: |
MARIANA THEREZA RODRIGUES VIANA, UFLA; HARIANNA PAULA ALVES DE AZEVEDO, UFLA; FERNANDA APARECIDA CASTRO PEREIRA, UFLA; MILENE ALVES DE FIGUEIREDO CARVALHO, CNPCa; RUBENS JOSÉ GUIMARÃES, UFLA. |
|
Título: |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Coffee Science, v. 16, e161949, 2021. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coffee genotypes based on morphophysiological characteristics. MenosThe identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coff... Mostrar Tudo |
|
Palavras-Chave: |
Estresse biótico. |
|
Thesagro: |
Café; Ferrugem; Folha; Genótipo; Morfologia Vegetal. |
|
Thesaurus NAL: |
Coffea arabica var. arabica. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143372/1/Coffee-genotypes-morphophysiological.pdf
|
|
Marc: |
LEADER 02279naa a2200253 a 4500
001 2143372
005 2022-05-23
008 2021 bl uuuu u00u1 u #d
100 1 $aVIANA, M. T. R.
245 $aCoffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress.$h[electronic resource]
260 $c2021
520 $aThe identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coffee genotypes based on morphophysiological characteristics.
650 $aCoffea arabica var. arabica
650 $aCafé
650 $aFerrugem
650 $aFolha
650 $aGenótipo
650 $aMorfologia Vegetal
653 $aEstresse biótico
700 1 $aAZEVEDO, H. P. A. de
700 1 $aPEREIRA, F. A. C.
700 1 $aCARVALHO, M. A. de F.
700 1 $aGUIMARÃES, R. J.
773 $tCoffee Science$gv. 16, e161949, 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Café (CNPCa) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
