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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
06/12/2021 |
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Data da última atualização: |
15/12/2021 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GONÇALVES, A. A.; GARCIA, A. R.; CRUZ, G. S. DA; SANTOS, S. DO S. D.; OHASHI, O. M. |
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Afiliação: |
ARNALDO ALGARANHAR GONÇALVES, UFPA; ALEXANDRE ROSSETTO GARCIA, CPPSE; GABRIELA SANTOS DA CRUZ, UFPA; SIMONE DO SOCORRO DAMASCENO SANTOS, UFPA; OTÁVIO MITIO OHASHI, UFPA. |
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Título: |
Cronologia da incidência de anomalias morfológicas espermáticas em touros búfalos (Bubalus bubalis) sob estresse térmico de curta duração. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA ABRAA, 5., 2021, Campo Grande, MS. Anais... Campo Grande, MS: UFMS, 2021. |
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Páginas: |
p.190-193. |
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ISBN: |
978-65-86943-44-3 |
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Idioma: |
Português |
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Conteúdo: |
The study aimed to evaluate the effect of short-term heat stress on sperm morphology, relating them to the stages of spermatogenesis. Adult buffalo bulls underwent scrotal insulation (day 0; 48 hours). Semen samples were collected every 7 days (day -7 to day 49) and analyzed. Heat stress destabilized scrotal thermoregulation (36.1±0.3 °C and 35.5±2.3 °C, after 24 and 48 hours of insulation) and returned to baseline five days after removal of the stressor stimulus (33.2±0.6°C). The sequential expression of the morphological defects showed tail defects (days 7 to 14), cytoplasmic droplets (days 14 to 28) and sperm head defects (day 28). Hyperthermia more severely damaged sperm in epididymal transit, elongated sperm and secondary spermatocytes. Thus, buffalo bulls presented a peculiar manifestation of sperm morphological defects after short-term stress, indicating an important difference regarding the bovine species. Therefore, during the andrological evaluation, allometric extrapolation between these species should be avoided. |
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Palavras-Chave: |
Defeitos espermáticos; Espermiograma; Insulação escrotal; Scrotal insulation; Sperm defects; Spermiogram. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228542/1/CronologiaIncidenciaAnomalias.pdf
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Marc: |
LEADER 01902nam a2200253 a 4500
001 2137146
005 2021-12-15
008 2021 bl uuuu u00u1 u #d
020 $a978-65-86943-44-3
100 1 $aGONÇALVES, A. A.
245 $aCronologia da incidência de anomalias morfológicas espermáticas em touros búfalos (Bubalus bubalis) sob estresse térmico de curta duração.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA ABRAA, 5., 2021, Campo Grande, MS. Anais... Campo Grande, MS: UFMS$c2021
300 $ap.190-193.
520 $aThe study aimed to evaluate the effect of short-term heat stress on sperm morphology, relating them to the stages of spermatogenesis. Adult buffalo bulls underwent scrotal insulation (day 0; 48 hours). Semen samples were collected every 7 days (day -7 to day 49) and analyzed. Heat stress destabilized scrotal thermoregulation (36.1±0.3 °C and 35.5±2.3 °C, after 24 and 48 hours of insulation) and returned to baseline five days after removal of the stressor stimulus (33.2±0.6°C). The sequential expression of the morphological defects showed tail defects (days 7 to 14), cytoplasmic droplets (days 14 to 28) and sperm head defects (day 28). Hyperthermia more severely damaged sperm in epididymal transit, elongated sperm and secondary spermatocytes. Thus, buffalo bulls presented a peculiar manifestation of sperm morphological defects after short-term stress, indicating an important difference regarding the bovine species. Therefore, during the andrological evaluation, allometric extrapolation between these species should be avoided.
653 $aDefeitos espermáticos
653 $aEspermiograma
653 $aInsulação escrotal
653 $aScrotal insulation
653 $aSperm defects
653 $aSpermiogram
700 1 $aGARCIA, A. R.
700 1 $aCRUZ, G. S. DA
700 1 $aSANTOS, S. DO S. D.
700 1 $aOHASHI, O. M.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
27/12/2001 |
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Data da última atualização: |
07/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PARENTONI, S. N.; MAGALHAES, J. V.; PACHECO, C. A. P.; SANTOS, M. X.; ABADIE, T.; GAMA, E. E. G.; GUIMARAES, P. E. O.; MEIRELLES, W. F.; LOPES, M. A.; VASCONCELOS, M. J. V.; PAIVA, E. |
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Afiliação: |
SIDNEY NETTO PARENTONI, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS; CLESO ANTONIO PATTO PACHECO, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS; WALTER FERNANDES MEIRELLES, CNPMS; MARIA JOSE VILACA DE VASCONCELOS, CNPMS. |
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Título: |
Heterotic groups based on yield-specific combining ability data and phylogenetic relationship determined by RAPD markers for 28 tropical maize open pollinated varieties. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Euphytica, Wageningen, v. 121, p.197-208, 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
Twenty eight maize open pollinated varieties (OPVs) were crossed in a diallel scheme and the 378 F1's were evaluated in 10 environments in Brazil. Based on yield-specific combining ability data (SCA), these varieties were classified in four heterotic groups. The consistence of the proposed heterotic groups was confirmed comparing intra-and inter-groups F1 values and midparent heterosis. Superior OPVs combinations for use as a source of inbreds in hybrid breeding programs were determined. RAPD markers were used to genotype these varieties. A UPGMA dendogram, based on marker data from 50 primers and 178 polymorphic bands, was obtained. Phylogeny obtained with RAPD markers agreed with known pedigree data. Dent germplasm tended to group separately from flint germplasm. Multidimensional Scaling Analysis on marker data and morphological data showed a higher degree of genetic divergence among the dent germplasm than among the flint germplasm used in this study. Correlation between RAPD marker estimated genetic distance and SCA for yield was low and positive (r=0,16**). |
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Palavras-Chave: |
Heterose; Maize; Marcadores; Markers; Phylogem; RAPD. |
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Thesagro: |
Filogenia; Milho; Zea Mays. |
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Thesaurus NAL: |
heterosis. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02104naa a2200361 a 4500
001 1485171
005 2018-06-07
008 2001 bl uuuu u00u1 u #d
100 1 $aPARENTONI, S. N.
245 $aHeterotic groups based on yield-specific combining ability data and phylogenetic relationship determined by RAPD markers for 28 tropical maize open pollinated varieties.$h[electronic resource]
260 $c2001
520 $aTwenty eight maize open pollinated varieties (OPVs) were crossed in a diallel scheme and the 378 F1's were evaluated in 10 environments in Brazil. Based on yield-specific combining ability data (SCA), these varieties were classified in four heterotic groups. The consistence of the proposed heterotic groups was confirmed comparing intra-and inter-groups F1 values and midparent heterosis. Superior OPVs combinations for use as a source of inbreds in hybrid breeding programs were determined. RAPD markers were used to genotype these varieties. A UPGMA dendogram, based on marker data from 50 primers and 178 polymorphic bands, was obtained. Phylogeny obtained with RAPD markers agreed with known pedigree data. Dent germplasm tended to group separately from flint germplasm. Multidimensional Scaling Analysis on marker data and morphological data showed a higher degree of genetic divergence among the dent germplasm than among the flint germplasm used in this study. Correlation between RAPD marker estimated genetic distance and SCA for yield was low and positive (r=0,16**).
650 $aheterosis
650 $aFilogenia
650 $aMilho
650 $aZea Mays
653 $aHeterose
653 $aMaize
653 $aMarcadores
653 $aMarkers
653 $aPhylogem
653 $aRAPD
700 1 $aMAGALHAES, J. V.
700 1 $aPACHECO, C. A. P.
700 1 $aSANTOS, M. X.
700 1 $aABADIE, T.
700 1 $aGAMA, E. E. G.
700 1 $aGUIMARAES, P. E. O.
700 1 $aMEIRELLES, W. F.
700 1 $aLOPES, M. A.
700 1 $aVASCONCELOS, M. J. V.
700 1 $aPAIVA, E.
773 $tEuphytica, Wageningen$gv. 121, p.197-208, 2001.
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Embrapa Milho e Sorgo (CNPMS) |
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