B chromosomes in popcorn (Zea mays L. )
Genet. mol. res. (Online)
;
6(1): 137-143, 2007. tab, ilus
Artigo
em Inglês
| LILACS
| ID: lil-456759
ABSTRACT
Cytological analysis of microsporogenesis in 72 popcorn plants, comprising nine from the original population (CMS-43, S0) and 63 from seven cycles of self-fertilization (S1 to S7), one plant of S0 generation (plant 2) was identified with B chromosomes. The number of B chromosomes varied from two to three in the same anther. The pattern of chromosome pairing and meiotic behavior of Bs were similar to those found in other plant species. The presence of B chromosomes did not affect chiasma frequency and chiasma distribution in A chromosomes. This is the first report of B chromosomes in popcorn
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Genoma de Planta
/
Zea mays
/
Troca Genética
/
Cromossomos de Plantas
/
Meiose
Idioma:
Inglês
Revista:
Genet. mol. res. (Online)
Assunto da revista:
Biologia Molecular
/
Genética
Ano de publicação:
2007
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estadual de Maringá/BR
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