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Registros recuperados : 9 | |
9. | | EIRAS, M.; COLARICCIO, A.; CHAVES, A. L. R.; TAVARES, C. A. M.; HARAKAVA, R. Levantamento preliminar de geminivírus em tomateiros no Estado de São Paulo. Summa Phytopathologica, Botucatu, v. 28, n. 1, p. 97, jan./mar. 2002. Resumo. Biblioteca(s): Embrapa Hortaliças. |
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Registros recuperados : 9 | |
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Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
28/10/2013 |
Data da última atualização: |
15/04/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SANTOS, R. P.; AFFONSO, P. R. A. M.; DINIZ, D.; MEDRADO, A. S.; SILVA, K. de M.; CARNEIRO, P. L. S. |
Afiliação: |
Departamento de Ciências Biológicas, Universidade Estadual do Sudoeste da Bahia, Jequié, BA, Brasil.; Departamento de Ciências Biológicas, Universidade Estadual do Sudoeste da Bahia, Jequié, BA, Brasil; Departamento de Ciências Biológicas, Universidade Estadual do Sudoeste da Bahia, Jequié, BA, Brasil; Universidade Estadual de Santa Cruz, Campus Soane Nazaré de Andrade - Ilhéus, BA, Brasil; KLEIBE DE MORAES SILVA, CNPC; Departamento de Ciências Biológicas, Universidade Estadual do Sudoeste da Bahia, Jequié, BA, Brasil. |
Título: |
Identification of naturalized goat breeds under conservation from northeastern Brazil using chromosomal markers. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 12, n. 3, p. 3193-3200, 2013. |
DOI: |
10.4238/2013.August.29 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: In order to provide the first cytogenetic data of naturalized and threatened goat breeds from northeastern Brazil, cytogenetic analyses were carried out in individuals of Repartida and Moxotó breeds raised in Bahia and Ceará States. Males and females of both breeds had 2n = 60, with 29 autosomal acrocentric pairs plus the sex chromosome pair. The number of nucleolar organizer region (NOR)-bearing chromosomes ranged from 6 to 8 per metaphase in Moxotó and Repartida goats, respectively. The active NORs in Repartida individuals were located exclusively at the terminal regions of the long arms, as usually detected in Bovidae. Otherwise, Moxotó specimens presented a large autosomal pair with NORs on short arms. GC-rich heterochromatin was detected at the centromeres in both breeds, although polymorphic terminal C-bands were visualized on pair 25 in Moxotó. In addition, GC-rich regions were detected at the terminal regions of the long arms of a single pair in Repartida and of 20 chromosomes in Moxotó goats. The differences in both the number and/or position of Ag-NORs and GC-rich sites between Repartida and Moxotó breeds represent efficient cytogenetic markers that can be used in the identification and conservation of the genetic integrity of each lineage. In spite of the small effective population size of these breeds, chromosomal abnormalities related to drift or inbreeding effects were absent in the samples analyzed. |
Palavras-Chave: |
Bandeamento cromossômico; Brasil; Karyotypes; Raça Moxotó; Raça naturalizada; Região Nordeste. |
Thesagro: |
Caprino; Cariótipo; Citogenética animal; Conservação; Cromossoma; Genética animal; Melhoramento genético animal. |
Thesaurus NAL: |
Animal genetics; Brazil; Chromosome banding; Genetic improvement; Goats. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/91552/1/API-Identification-of-naturalized.pdf
|
Marc: |
LEADER 02645naa a2200409 a 4500 001 1969537 005 2015-04-15 008 2013 bl uuuu u00u1 u #d 024 7 $a10.4238/2013.August.29$2DOI 100 1 $aSANTOS, R. P. 245 $aIdentification of naturalized goat breeds under conservation from northeastern Brazil using chromosomal markers.$h[electronic resource] 260 $c2013 520 $aAbstract: In order to provide the first cytogenetic data of naturalized and threatened goat breeds from northeastern Brazil, cytogenetic analyses were carried out in individuals of Repartida and Moxotó breeds raised in Bahia and Ceará States. Males and females of both breeds had 2n = 60, with 29 autosomal acrocentric pairs plus the sex chromosome pair. The number of nucleolar organizer region (NOR)-bearing chromosomes ranged from 6 to 8 per metaphase in Moxotó and Repartida goats, respectively. The active NORs in Repartida individuals were located exclusively at the terminal regions of the long arms, as usually detected in Bovidae. Otherwise, Moxotó specimens presented a large autosomal pair with NORs on short arms. GC-rich heterochromatin was detected at the centromeres in both breeds, although polymorphic terminal C-bands were visualized on pair 25 in Moxotó. In addition, GC-rich regions were detected at the terminal regions of the long arms of a single pair in Repartida and of 20 chromosomes in Moxotó goats. The differences in both the number and/or position of Ag-NORs and GC-rich sites between Repartida and Moxotó breeds represent efficient cytogenetic markers that can be used in the identification and conservation of the genetic integrity of each lineage. In spite of the small effective population size of these breeds, chromosomal abnormalities related to drift or inbreeding effects were absent in the samples analyzed. 650 $aAnimal genetics 650 $aBrazil 650 $aChromosome banding 650 $aGenetic improvement 650 $aGoats 650 $aCaprino 650 $aCariótipo 650 $aCitogenética animal 650 $aConservação 650 $aCromossoma 650 $aGenética animal 650 $aMelhoramento genético animal 653 $aBandeamento cromossômico 653 $aBrasil 653 $aKaryotypes 653 $aRaça Moxotó 653 $aRaça naturalizada 653 $aRegião Nordeste 700 1 $aAFFONSO, P. R. A. M. 700 1 $aDINIZ, D. 700 1 $aMEDRADO, A. S. 700 1 $aSILVA, K. de M. 700 1 $aCARNEIRO, P. L. S. 773 $tGenetics and Molecular Research$gv. 12, n. 3, p. 3193-3200, 2013.
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