Artículo
Evolutionary Relationships between the Diploid Turners grandiflora and the Octoploid T. fernandezii (Turneraceae)
Fecha de publicación:
10/2010
Editorial:
Finnish Zoological Botanical Publishing Board
Revista:
Annales Botanici Fennici
ISSN:
0003-3847
e-ISSN:
1797-2442
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Aiming to analyze the evolutionary relationships between the diploid species Turnera grandiflora (2n = 2x = 10) and the octoploid T. fernandezii (2n = 8x = 40), inter-specific hybrids were recovered by in vitro embryo rescue methods. The full-grown plants obtained were all pentaploids (2n = 5x = 25) confirming their hybrid nature. The chromosome associations observed in the hybrids during meiosis were indicative for an autopentaploid, suggesting that T. fernandezii carries the genome of T. grandiflora (CgCg) but at the octoploid level (CgCg CgCg CgCg CgCg). This fact confirms a close evolutionary relationship between the species and supports the hypothesis that T. grandiflora is the progenitor of T. fernandezii. A tentative hypothesis regarding the autopolyploid origin of T. fernandezii is finally formulated
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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción:
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
Colecciones
Articulos(IBONE)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Citación
Fernandez, Aveliano; Rey de Badaró, Hebe Yolanda; Solis Neffa, Viviana Griselda; Evolutionary Relationships between the Diploid Turners grandiflora and the Octoploid T. fernandezii (Turneraceae); Finnish Zoological Botanical Publishing Board; Annales Botanici Fennici; 47; 5; 10-2010; 321-329
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