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Título

Extent of cross-fertilization in Orobanche cumana Wallr

Autor Rodríguez-Ojeda, M. I.; Fernández Martínez, José María ; Velasco Varo, Leonardo ; Pérez-Vich, Begoña
Palabras clave Allogamy
Anthocyaninless
Autogamy
Sunflower broomrape
Unpigmented plants
Fecha de publicación sep-2013
EditorKluwer Academic Publishers
Citación Biologia Plantarum 57(3): 559-562 (2013)
ResumenSunflower broomrape (Orobanche cumana Wallr.) is considered a self-fertilizing species, but there is no indication as to whether it is strictly self-fertilized or that it presents some extent of cross-fertilization. The objective of this research was to measure the rate of cross-fertilization in O. cumana using an unpigmented recessive mutant as a visual marker. A pot and a field experiment in which single unpigmented plants were surrounded by a large number of pigmented plants were conducted. Occurrence of F1 hybrids, readily distinguishable from unpigmented plants in the progenies of unpigmented plants provided a direct measurement of the cross-fertilization rate. Progenies of unpigmented plants contained 21.5 % of F1 hybrids in the pot experiment and 28.8 % in the field experiment. The results revealed that O. cumana is a partially allogamous species, which has great relevance for understanding the genetic structure and dynamics of populations and, ultimately, race evolution in this parasitic plant. © 2012 Springer Science+Business Media Dordrecht.
URI http://hdl.handle.net/10261/87858
DOI10.1007/s10535-012-0301-1
Identificadoresdoi: 10.1007/s10535-012-0301-1
issn: 0006-3134
e-issn: 1573-8264
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