Data/hora: 17/06/2024 10:00:38

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 07/12/2010
Data da última atualização: | 06/02/2024
Autoria: | FAJARDO, C. G.; DAVIDE, L. C.; PEREIRA, A. V.
Afiliação: | CRISTIANE GOUVÊA FAJARDO, UFLA; LISETE CHAMA DAVIDE, UFLA; ANTONIO VANDER PEREIRA, CNPGL.
Título: | Characterization of interphase nuclei from triploid hybrids between Pennisetum purpureum Schumach and Pennisetum glaucum (L.) R. Br.
Ano de publicação: | 2010
Fonte/Imprenta: | Ciência e Agrotecnologia, v. 34, n. 5, p. 1124-1128, set./out. 2010.
DOI: | https://doi.org/10.1590/S1413-70542010000500007
Idioma: | Inglês
Conteúdo: | This study evaluated the structure and the volume of interphase nuclei from root meristems of the genotypes of napier grass (Pennisetum purpureum), pearl millet (Pennisetum glaucum) and hybrids resultant of such breeding. In napier grass, nuclei were areticulate. Both pearl millet and the triploid hybrid had semi-reticulate nuclei; also, the hybrid presented a small proportion (6%) of areticulate nuclei. Pearl millet had the highest averages of nuclear dimensions, such as volume, diameter and radius, followed by the interspecific hybrid and napier grass. There was no intraspecific variation for the type of nuclear structure, which indicates this feature is important for cytotaxonomic studies involving the genus Pennisetum. Results demonstrated that chromatin organization in these nuclei was influenced by the number and size of chromosomes, affecting the nucleus volume in the analyzed taxa.
Palavras-Chave: | Interphase chromatin; Napier grass; Nuclear volume; Pearl millet.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/23928/1/Vander-2010-Cienc-Agrotec-2.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (17629-1) - UPC - AP - DD -  -  -  - DIS