2017
DOI: 10.21829/abm118.2017.1199
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Números cromosómicos para tres especies de Cosmos sección Discopoda (Asteraceae, Coreopsideae), con notas citogeográficas

Abstract: Antecedentes y Objetivos: Cosmos secc. Discopoda (Asteraceae, Coreopsideae) es un modelo de estudio sobre poliploidía y aneuploidía. La sección es monofilética, agrupa 24 especies herbáceas perennes y existen especies poliploides y aneuploides. Sin embargo, no se conocen los números cromosómicos para todas las especies y su citogeografía no ha sido estudiada. El propósito de la presente comunicación es dar a conocer conteos cromosómicos para tres especies y discutir sobre el nivel de ploidía ancestral y patron… Show more

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Cited by 3 publications
(1 citation statement)
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“…Like phylogeography but much less explored, citogeography has allowed studying the correlation between ploidy levels or chromosomic numbers and the geographic ranges of the populations. In their study of 3 species of the plant genus Cosmos, Castro-Castro et al (2017) did not find an apparent correlation between the ploidy levels and geographical ranges of the species but found an increase in ploidy levels from south to north, with a concentration of polyploids in the northern Sierra Madre Occidental.…”
Section: Content Analysismentioning
confidence: 88%
“…Like phylogeography but much less explored, citogeography has allowed studying the correlation between ploidy levels or chromosomic numbers and the geographic ranges of the populations. In their study of 3 species of the plant genus Cosmos, Castro-Castro et al (2017) did not find an apparent correlation between the ploidy levels and geographical ranges of the species but found an increase in ploidy levels from south to north, with a concentration of polyploids in the northern Sierra Madre Occidental.…”
Section: Content Analysismentioning
confidence: 88%