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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
18/08/2010 |
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Data da última atualização: |
17/08/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTANHOLE, M. M. U.; PEREIRA, L. L. V.; SOUZA, H. V. de; VALERIO, J. R.; BARBOSA, L. R.; ITOYAMA, M. M. |
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Afiliação: |
MÁRCIA MARIA URBANIN CASTANHOLE, UNESP; LUIS LÊNIN VICENTE PEREIRA, UNESP; HEDERSON VINICIUS DE SOUZA, UNESP; JOSE RAUL VALERIO, CNPGC; LEONARDO RODRIGUES BARBOSA, CNPF; MARY MASSUMI ITOYAMA, UNESP. |
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Título: |
Meiotic chromosomes and nucleolar behavior in testicular cellas of the grassland spittlebugs Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana (Hemiptera, Auschenorrhyncha). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Genetics and Molecular Biology, v. 33, n. 2, p. 244-252, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
Spittlebugs annually infest pastures and cause severe damage, representing a serious problem for the tropical American beef cattle industry. Spittlebugs are an important biotic constraint to forage production and there is a lack of cytogenetic data for this group of insects. For these reasons, we conducted this work, in which the spermatogenesis and nucleolar behavior of Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana were studied. The males possessed testes in the shape of a “bunch of grapes”; a variable number of testicular lobes per individual and polyploid nuclei composed of several heteropycnotic bodies. A heteropycnotic area was located in the periphery of the nucleus (prophase I); the chiasmata were terminal or interstitial; metaphases I were circular or linear and anaphase showed late migration of the sex chromosome. The chromosome complement had 2n = 19, except for N. entreriana (2n = 15); the spermatids were round with heteropycnotic material in the center and elongated with conspicuos chromatin. The analysis of testes after silver nitrate staining showed polyploid nuclei with three large and three smaller nucleolar bodies. Early prophase cells had an intensely stained nucleolar body located close to the chromatin and another less evident body located away from the chromatin. The nucleolar bodies disintegrated during diplotene. Silver staining occurred in two autosomes, in terminal and subterminal locations, the latter probably corresponding to the nucleolus organizer regions (NORs). The spermatids were round with a round nucleolar body and silver staining was observed in the medial and posterior region of the elongated part of the spermatid head. MenosSpittlebugs annually infest pastures and cause severe damage, representing a serious problem for the tropical American beef cattle industry. Spittlebugs are an important biotic constraint to forage production and there is a lack of cytogenetic data for this group of insects. For these reasons, we conducted this work, in which the spermatogenesis and nucleolar behavior of Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana were studied. The males possessed testes in the shape of a “bunch of grapes”; a variable number of testicular lobes per individual and polyploid nuclei composed of several heteropycnotic bodies. A heteropycnotic area was located in the periphery of the nucleus (prophase I); the chiasmata were terminal or interstitial; metaphases I were circular or linear and anaphase showed late migration of the sex chromosome. The chromosome complement had 2n = 19, except for N. entreriana (2n = 15); the spermatids were round with heteropycnotic material in the center and elongated with conspicuos chromatin. The analysis of testes after silver nitrate staining showed polyploid nuclei with three large and three smaller nucleolar bodies. Early prophase cells had an intensely stained nucleolar body located close to the chromatin and another less evident body located away from the chromatin. The nucleolar bodies disintegrated during diplotene. Silver staining occurred in two autosomes, in terminal and subterminal locations, the latter probably corresponding to the... Mostrar Tudo |
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Palavras-Chave: |
Caracterização cromossômica. |
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Thesagro: |
Citogenética; Pastagem; Praga. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/27251/1/2009-236.pdf
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Marc: |
LEADER 02493naa a2200229 a 4500
001 1860302
005 2015-08-17
008 2010 bl uuuu u00u1 u #d
100 1 $aCASTANHOLE, M. M. U.
245 $aMeiotic chromosomes and nucleolar behavior in testicular cellas of the grassland spittlebugs Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana (Hemiptera, Auschenorrhyncha).$h[electronic resource]
260 $c2010
520 $aSpittlebugs annually infest pastures and cause severe damage, representing a serious problem for the tropical American beef cattle industry. Spittlebugs are an important biotic constraint to forage production and there is a lack of cytogenetic data for this group of insects. For these reasons, we conducted this work, in which the spermatogenesis and nucleolar behavior of Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana were studied. The males possessed testes in the shape of a “bunch of grapes”; a variable number of testicular lobes per individual and polyploid nuclei composed of several heteropycnotic bodies. A heteropycnotic area was located in the periphery of the nucleus (prophase I); the chiasmata were terminal or interstitial; metaphases I were circular or linear and anaphase showed late migration of the sex chromosome. The chromosome complement had 2n = 19, except for N. entreriana (2n = 15); the spermatids were round with heteropycnotic material in the center and elongated with conspicuos chromatin. The analysis of testes after silver nitrate staining showed polyploid nuclei with three large and three smaller nucleolar bodies. Early prophase cells had an intensely stained nucleolar body located close to the chromatin and another less evident body located away from the chromatin. The nucleolar bodies disintegrated during diplotene. Silver staining occurred in two autosomes, in terminal and subterminal locations, the latter probably corresponding to the nucleolus organizer regions (NORs). The spermatids were round with a round nucleolar body and silver staining was observed in the medial and posterior region of the elongated part of the spermatid head.
650 $aCitogenética
650 $aPastagem
650 $aPraga
653 $aCaracterização cromossômica
700 1 $aPEREIRA, L. L. V.
700 1 $aSOUZA, H. V. de
700 1 $aVALERIO, J. R.
700 1 $aBARBOSA, L. R.
700 1 $aITOYAMA, M. M.
773 $tGenetics and Molecular Biology$gv. 33, n. 2, p. 244-252, 2010.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
26/02/2018 |
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Data da última atualização: |
17/05/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ARANDA, A. N.; SILVA, M. C.; SOUZA, L. H.; LONGO, M. L.; CANSIAN, K.; COSTA, J. A.; REIS, F. A.; BARBOSA-FERREIRA, M.; VARGAS JUNIOR, F. M.; GRISOLIA, A. B. |
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Afiliação: |
Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; FERNANDO ALVARENGA REIS, CNPC; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil; Universidade Federal da Grande Dourados (UFGD) - Dourados, MS, Brasil. |
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Título: |
Levantamento e validação de hipóteses relacionadas ao fenótipo de ovelhas pantaneiras: contribuições para o padrão racial. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPOSIO IBEROAMERICANO SOBRE CONSERVACIÓN Y UTILIZACIÓN DE RECURSOS ZOOGENÉTICOS, 18., 2017, Chiquimula, Guatemala. [Anais...]. São Carlos de Guatemala: Universidad de São Carlos de Guatemala, 2017. p. 24. |
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Idioma: |
Português |
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Palavras-Chave: |
Brasil; Etnozootecnia; Locally adapted breeds; Morfometria; Ovelha Pantaneira; Padrão racial; Raça localmente adaptada. |
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Thesagro: |
Conservação; Genética Animal; Ovino. |
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Thesaurus NAL: |
Animal genetics; Brazil; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/173162/1/CNPC-2017-Levantamento.pdf
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Marc: |
LEADER 01226nam a2200361 a 4500
001 2088169
005 2022-05-17
008 2017 bl uuuu u00u1 u #d
100 1 $aARANDA, A. N.
245 $aLevantamento e validação de hipóteses relacionadas ao fenótipo de ovelhas pantaneiras$bcontribuições para o padrão racial.$h[electronic resource]
260 $aIn: SIMPOSIO IBEROAMERICANO SOBRE CONSERVACIÓN Y UTILIZACIÓN DE RECURSOS ZOOGENÉTICOS, 18., 2017, Chiquimula, Guatemala. [Anais...]. São Carlos de Guatemala: Universidad de São Carlos de Guatemala, 2017. p. 24.$c2017
650 $aAnimal genetics
650 $aBrazil
650 $aSheep
650 $aConservação
650 $aGenética Animal
650 $aOvino
653 $aBrasil
653 $aEtnozootecnia
653 $aLocally adapted breeds
653 $aMorfometria
653 $aOvelha Pantaneira
653 $aPadrão racial
653 $aRaça localmente adaptada
700 1 $aSILVA, M. C.
700 1 $aSOUZA, L. H.
700 1 $aLONGO, M. L.
700 1 $aCANSIAN, K.
700 1 $aCOSTA, J. A.
700 1 $aREIS, F. A.
700 1 $aBARBOSA-FERREIRA, M.
700 1 $aVARGAS JUNIOR, F. M.
700 1 $aGRISOLIA, A. B.
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Embrapa Caprinos e Ovinos (CNPC) |
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