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Boletín de la Sociedad Argentina de Botánica
Article . 2016 . Peer-reviewed
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Análisis Citogeográfico En Turnera Krapovickasii (Passifloraceae).

Authors: Lazaroff, Yanina Ayelen; Moreno, Ercilia Maria Sara; Fernandez, Aveliano; Solis Neffa, Viviana Griselda;

Análisis Citogeográfico En Turnera Krapovickasii (Passifloraceae).

Abstract

Turnera krapovickasii se distribuye en el noroeste argentino, sur de Bolivia y oeste de Paraguay. Presenta citotipos diploide (2n= 2x= 10) y autotetraploide (2n= 4x= 20). A fin de interpretar el papel de la autopoliploidía en la evolución de esta especie, se analizaron la frecuencia y distribución espacial de los citotipos. Se detectaron iguales frecuencias de poblaciones diploides y tetraploides, mayormente constituidas por un solo citotipo, aunque algunas poblaciones diploides presentaron individuos triploides o tetraploides. Los diploides ocupan un área continua desde el sur de Bolivia hasta el noroeste de Argentina, y desde 124 hasta 1342 m.s.n.m. Los tetraploides ocupan áreas disyuntas, en el este y norte del área de la especie, en alturas desde 237 hasta 810 m.s.n.m. El ACP mostró una asociación significativa entre la distribución de los citotipos y el clima. Asimismo, el análisis de modelado de nicho ecológico reveló que el sureste (Provincia Chaqueña) y el este de Bolivia (Provincia del Cerrado) son las áreas de mayor probabilidad de ocurrencia de diploides y tetraploides, respectivamente. La distribución de los citotipos observada sustenta la hipótesis de que la expansión del área geográfica asociada con la poliploidía tuvo un papel importante en la historia evolutiva de T. krapovickasii.

Keywords

CYTOGEOGRAPHY, Cytogeography, citogeografía, Citogeografía, TURNERA KRAPOVICKASII, Science, Q, Botany, POLYPLOIDY, Poliploidía, Polyploidy, poliploidía, https://purl.org/becyt/ford/1.6, Turnera krapovickasii, QK1-989, https://purl.org/becyt/ford/1

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
Green
gold