| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
06/12/2012 |
|
Data da última atualização: |
29/01/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SILVA, L. A. C.; PAGLIARINI, M. S.; SANTOS, S. A.; SILVA, N.; SOUZA, V. F. |
|
Afiliação: |
UEM; UEM; SANDRA APARECIDA SANTOS, CPAP; UEM; UEM. |
|
Título: |
Chromosome number, microsporogenesis, microgametogenesis, and pollen viability in the Brazilian native grass Mesosetum chaseae (Poaceae). |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
Genetics and Molecular Research, v. 11, n. 4, p. 4100-410-, 2012. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The genus Mesosetum is a primarily South American genus with 42 species. Mesosetum chaseae, regionally known as ?grama-do-cerrado?, is abundant in the Pantanal Matogrossense (Brazil); it is a valuable resource for livestock and for environmental conservation. We collected specimens from the Nhecolandia sub-region of the Brazilian Pantanal, located in Corumbá, Mato Grosso do Sul, Brazil. We examined chromosome number, ploidy level, meiotic behavior, microgametogenesis, and pollen viability of 10 accessions. All the accessions were diploid, derived from x = 8, presenting 2n = 2x = 16 chromosomes. Chromosomes paired as bivalents showing, predominantly, two terminal chiasmata. Interstitial chiasmata were rare. Meiosis was quite normal producing only a few abnormal tetrads in some accessions. Microgametogenesis, after two mitotic divisions, produced three-celled pollen grains. Pollen viability was variable among plant and accessions and was not correlated with meiotic abnormalities. |
|
Palavras-Chave: |
'Grama-do-cerrado'; Mesosetum chaseae; Microgametogenesis; Pollen viability. |
|
Thesaurus Nal: |
chromosome number; meiosis. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/171784/1/Chromosome-santos.pdf
|
|
Marc: |
LEADER 01758naa a2200241 a 4500
001 1941635
005 2018-01-29
008 2012 bl uuuu u00u1 u #d
100 1 $aSILVA, L. A. C.
245 $aChromosome number, microsporogenesis, microgametogenesis, and pollen viability in the Brazilian native grass Mesosetum chaseae (Poaceae).$h[electronic resource]
260 $c2012
520 $aThe genus Mesosetum is a primarily South American genus with 42 species. Mesosetum chaseae, regionally known as ?grama-do-cerrado?, is abundant in the Pantanal Matogrossense (Brazil); it is a valuable resource for livestock and for environmental conservation. We collected specimens from the Nhecolandia sub-region of the Brazilian Pantanal, located in Corumbá, Mato Grosso do Sul, Brazil. We examined chromosome number, ploidy level, meiotic behavior, microgametogenesis, and pollen viability of 10 accessions. All the accessions were diploid, derived from x = 8, presenting 2n = 2x = 16 chromosomes. Chromosomes paired as bivalents showing, predominantly, two terminal chiasmata. Interstitial chiasmata were rare. Meiosis was quite normal producing only a few abnormal tetrads in some accessions. Microgametogenesis, after two mitotic divisions, produced three-celled pollen grains. Pollen viability was variable among plant and accessions and was not correlated with meiotic abnormalities.
650 $achromosome number
650 $ameiosis
653 $a'Grama-do-cerrado'
653 $aMesosetum chaseae
653 $aMicrogametogenesis
653 $aPollen viability
700 1 $aPAGLIARINI, M. S.
700 1 $aSANTOS, S. A.
700 1 $aSILVA, N.
700 1 $aSOUZA, V. F.
773 $tGenetics and Molecular Research$gv. 11, n. 4, p. 4100-410-, 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 1 | |
| 1. |  | SILVA, L. A. C.; PAGLIARINI, M. S.; SANTOS, S. A.; SILVA, N.; SOUZA, V. F. Chromosome number, microsporogenesis, microgametogenesis, and pollen viability in the Brazilian native grass Mesosetum chaseae (Poaceae). Genetics and Molecular Research, v. 11, n. 4, p. 4100-410-, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pantanal. |
|    |
| Registros recuperados : 1 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
