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Intrachromosomal karyotype asymmetry in Orchidaceae Genet. Mol. Biol.
Medeiros-Neto,Enoque; Nollet,Felipe; Moraes,Ana Paula; Felix,Leonardo P..
Abstract The asymmetry indexes have helped cytotaxonomists to interpret and classify plant karyotypes for species delimitation efforts. However, there is no consensus about the best method to calculate the intrachromosomal asymmetry. The present study aimed to compare different intrachromosomal asymmetry indexes in order to indicate which are more efficient for the estimation of asymmetry in different groups of orchids. Besides, we aimed to compare our results with the Orchidaceae phylogenetic proposal to test the hypothesis of Stebbins (1971). Through a literature review, karyotypes were selected and analyzed comparatively with ideal karyotypes in a cluster analysis. All karyotypes showed some level of interchromosomal asymmetry, ranging from slightly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Asymmetry index; Karyotype symmetry; Chromosome; Cytogenetic; Evolution.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000400610
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