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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
01/08/2018 |
Data da última atualização: |
01/08/2018 |
Autoria: |
ISSA, E. C.; JORGE, W.; SERENO, J. R. B. |
Afiliação: |
Érica Cunha Issa, Universidade Estadual Paulista Júlio de Mesquita Filho, - Unesp; Wilham Jorge, Universidade Federal de Minas Gerais - UMFG/Departamento de Biologia Geral; JOSE ROBSON BEZERRA SERENO, SPD. |
Título: |
Cytogenetic and molecular analysis of the Pantaneiro cattle breed. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 11, p. 1609-1615, nov. 2006 |
Idioma: |
Inglês |
Notas: |
Título em português: Análise citogenética e molecular do bovino Pantaneiro. |
Conteúdo: |
The objective of this work was to characterize Pantaneiro cattle genetically through its paternal ancestry by the morphology of the Y chromosome, whether submetacentric or acrocentric, as well as to identify the maternal ancestry through mitochondrial DNA. The karyotype and mitochondrial DNA of 12 bulls of Pantaneiro breed were analyzed. The Y chromosome was analyzed in lymphocyte metaphases and the mitochondrial DNA by diagnosing its haplotype (Bos taurus and Bos indicus). Among Pantaneiro animals analyzed three had a taurine (submetacentric) Y and nine had a zebuine (acrocentric) Y chromosome, suggesting breed contamination by Zebu cattle, once Pantaneiro is considered to be of European origin. The mitochondrial DNA was exclusively of taurine origin, indicating that the participation of zebuines in the formation of the breed occurred entirely through the paternal line. |
Palavras-Chave: |
Bos taurus indicus; Bos taurus taurus. |
Thesagro: |
Bos Taurus. |
Thesaurus Nal: |
Mitochondrial DNA; Y chromosome. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180678/1/Cytogenetic-and-molecular-analysis.pdf
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Marc: |
LEADER 01572naa a2200217 a 4500 001 2093759 005 2018-08-01 008 2006 bl uuuu u00u1 u #d 100 1 $aISSA, E. C. 245 $aCytogenetic and molecular analysis of the Pantaneiro cattle breed. 260 $c2006 500 $aTítulo em português: Análise citogenética e molecular do bovino Pantaneiro. 520 $aThe objective of this work was to characterize Pantaneiro cattle genetically through its paternal ancestry by the morphology of the Y chromosome, whether submetacentric or acrocentric, as well as to identify the maternal ancestry through mitochondrial DNA. The karyotype and mitochondrial DNA of 12 bulls of Pantaneiro breed were analyzed. The Y chromosome was analyzed in lymphocyte metaphases and the mitochondrial DNA by diagnosing its haplotype (Bos taurus and Bos indicus). Among Pantaneiro animals analyzed three had a taurine (submetacentric) Y and nine had a zebuine (acrocentric) Y chromosome, suggesting breed contamination by Zebu cattle, once Pantaneiro is considered to be of European origin. The mitochondrial DNA was exclusively of taurine origin, indicating that the participation of zebuines in the formation of the breed occurred entirely through the paternal line. 650 $aMitochondrial DNA 650 $aY chromosome 650 $aBos Taurus 653 $aBos taurus indicus 653 $aBos taurus taurus 700 1 $aJORGE, W. 700 1 $aSERENO, J. R. B. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 41, n. 11, p. 1609-1615, nov. 2006
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Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
06/04/1999 |
Data da última atualização: |
06/04/1999 |
Autoria: |
DE SOUZA, F. A. de; BERBARA, R. L. L. |
Título: |
Ontogeny of Glomus clarum in Ri T-DNA transformed roots. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Mycologia, New York, v. 91, n .2, p. 343-350, 1999. |
Idioma: |
Inglês |
Conteúdo: |
The spore ontogeny of Glomus clarum was monitored during the nonsymtiotic growth phase and after the colonization in transformed roots of clover (Trifolium repens) and carrot (Daucus carota). The germinated spore in water agar produced spore-like vesicles during the nonsymbiotic phase. It has been shown that these structures were in fact juvenile spores, that after root colonization were able to form mature spores. G. clarum began the spore formation in its nonsymbiotic phase. However, the juvenile spore structures senesced without establishment of an effective symbiosis. Spores of the genus Glomus are assumed to form terminally from sporogenic hyphae, but the ontogeny of G. clarum in transformed roots demonstrates that sporogenesis can also involve intercalary sporelike vesicles formed along the sporogenic hyphae. Using root organ culture system, all steps of spore formation can be followed in vivo without disturbing the system. This technique provides a better way to visualise events that occur during the pre- and postcolonization phase of arbuscular mycorrhiza, allowing the comprehension of full life cycle of this fungi. There are morphological variations in the ontogeny of G. clarum spores which differentiate its pattern from other Glomus species. |
Thesagro: |
Micorriza Vesicular Arbuscular; Taxonomia. |
Thesaurus NAL: |
taxonomy; vesicular arbuscular mycorrhizae. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01788naa a2200181 a 4500 001 1623829 005 1999-04-06 008 1999 bl --- 0-- u #d 100 1 $aDE SOUZA, F. A. de 245 $aOntogeny of Glomus clarum in Ri T-DNA transformed roots. 260 $c1999 520 $aThe spore ontogeny of Glomus clarum was monitored during the nonsymtiotic growth phase and after the colonization in transformed roots of clover (Trifolium repens) and carrot (Daucus carota). The germinated spore in water agar produced spore-like vesicles during the nonsymbiotic phase. It has been shown that these structures were in fact juvenile spores, that after root colonization were able to form mature spores. G. clarum began the spore formation in its nonsymbiotic phase. However, the juvenile spore structures senesced without establishment of an effective symbiosis. Spores of the genus Glomus are assumed to form terminally from sporogenic hyphae, but the ontogeny of G. clarum in transformed roots demonstrates that sporogenesis can also involve intercalary sporelike vesicles formed along the sporogenic hyphae. Using root organ culture system, all steps of spore formation can be followed in vivo without disturbing the system. This technique provides a better way to visualise events that occur during the pre- and postcolonization phase of arbuscular mycorrhiza, allowing the comprehension of full life cycle of this fungi. There are morphological variations in the ontogeny of G. clarum spores which differentiate its pattern from other Glomus species. 650 $ataxonomy 650 $avesicular arbuscular mycorrhizae 650 $aMicorriza Vesicular Arbuscular 650 $aTaxonomia 700 1 $aBERBARA, R. L. L. 773 $tMycologia, New York$gv. 91, n .2, p. 343-350, 1999.
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