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An increment in the Duranta repens L. (Verbenaceae) knowledge: DNA content, karyology, meiosis and palynology

Sousa, Saulo M. ; Reis, Aryane C. ; Silva, Pâmela S. ; Viccini, Lyderson F.

Caryologia, 2011-01, Vol.64 (1), p.110-116 [Periódico revisado por pares]

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Título:
An increment in the Duranta repens L. (Verbenaceae) knowledge: DNA content, karyology, meiosis and palynology
Autor: Sousa, Saulo M. ; Reis, Aryane C. ; Silva, Pâmela S. ; Viccini, Lyderson F.
Assuntos: cytogenetics ; DNA content ; Duranta repens ; palynology ; Verbenaceae
É parte de: Caryologia, 2011-01, Vol.64 (1), p.110-116
Descrição: Meiotic behavior, pollen morphology, interphasic nucleus pattern and karyotype description for Duranta repens (Verbenaceae) are presented. The species had semi-reticulate interphasic nucleus and in mitotic metaphase, chromosome number was 2n = 34 (32 m + 2 sm), with secondary constriction in one chromosome pair. Additionally to the A complement, we observed B chromosomes, varying to 0-3 in some cells of several individuals. Meiotic behavior was regular and pollen grains were isopolar and tricolporate, being classified as prolate-spheroidal with psilate-perfurate exine ornamentation.
Editor: Taylor & Francis Group
Idioma: Inglês

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