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Taxonomic and evolutionary implications of intraspecific variability in chromosome numbers of species of Leucaena Benth. (Leguminosae)

Cardoso, M ; Schifino-Wittmann, M ; Bodanese-Zanettini, M

Botanical journal of the Linnean Society, 2000-12, Vol.134 (4), p.549-556 [Periódico revisado por pares]

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Título:
Taxonomic and evolutionary implications of intraspecific variability in chromosome numbers of species of Leucaena Benth. (Leguminosae)
Autor: Cardoso, M ; Schifino-Wittmann, M ; Bodanese-Zanettini, M
Assuntos: Fabaceae ; Leucaena
É parte de: Botanical journal of the Linnean Society, 2000-12, Vol.134 (4), p.549-556
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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Descrição: Chromosome numbers were determined in 52 individuals of 14 taxa of Leucaena Benth. from 22 populations. For L. cuspidata and L. lempirana these are the first published chromosome counts. Intraspecific variability was found for L. lempirana, L. macrophylla and L. shanonii, and one diploid population of the tetraploid species L. pallida was identified. Comparison of our data with those in the literature showed that forL. collinsii and L. macrophylla there is a relationship between chromosome number and subspecies delimitation. The variability detected in chromosome numbers shows the complexity of the diploid and tetraploid species evolution, and suggests multiple origins for some of the polyploid taxa. Copyright 2000 The Linnean Society of London
Idioma: Inglês

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