Nuclear DNA content and karyotype of Rosewood (Aniba rosaeodora)

Rosewood (Aniba rosaeodora Ducke, Lauraceae) is ecologically and economically important to the Amazon region. As a consequence of its economic importance, rosewood populations have been decimated in the Amazon forest. Species of nine genera of the Lauraceae family have characterized karyotypes with n = x = 12 chromosomes in the gametophytic phase but the genus Aniba is one of the least studied Lauraceae genera with a previously undescribed genome. We used cytogenetic techniques to determine that the A. rosaeodora karyotype contained 12 pairs (2n = 24) of relatively small submetacentric chromosomes with lengths ranging from 1.34 to 2.25 mum and a nucleolar organizer region (NOR) in the short arm of chromosome 7. Flow cytometry gave 2C = 2.32 pg of DNA, equivalent to approximately 2.24 x 10(9) base pairs.

Bibliographic Details

Main Authors:	Contim,Luis Antônio Serrão, Carvalho,Carlos Roberto de, Martins,Franciele Alline, Freitas,Danival Vieira de
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Genética 2005
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500017
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