Data/hora: 01/06/2024 17:36:07

Provedor de dados: | 94
País: | Brazil
Título: | Chromosome characterization of two varieties of Mangifera indica L.¹
Autores: | Pierozzi,Neiva Izabel; Rossetto,Carlos Jorge.
Data: | 2011-10-01
Ano: | 2011
Palavras-chave: | Mango; Mitotic chromosomes; Persistent nucleolus; NOR-banding; M. indica.
Resumo: | Chromosome studies were performed in two varieties of Mangifera indica L. (mango), 'IAC-140 Espadona' and in its progenitor 'Espada Stahl'. Both varieties showed 2n=40 chromosomes though the karyotype formulae were 8m + 10sm + 2sm s for 'Stahl' and 7m + 11sm + 2sm s for 'IAC-140'. The varieties showed moderate karyotype asymmetry which was estimated according to four different indices. Both varieties exhibited three chromosome pairs with silver impregnation after NOR-banding. The number of nucleoli within interphase cells varied from one, the commonest, to eight. The nucleolus persistent phenomenon was observed in more than 22% of metaphase cells of both varieties, seeing that in 'Stahl', up to two nucleoli were evidenced. This variety also showed one nucleolus in several anaphase cells. The studies were suitable for evidencing diversity at chromosomal level between these two varieties.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000500074
Editor: | Sociedade Brasileira de Fruticultura
Relação: | 10.1590/S0100-29452011000500074
Formato: | text/html
Fonte: | Revista Brasileira de Fruticultura  v.33 n.spe1 2011
Fonte: | info:eu-repo/semantics/openAccess