Breeding system of the Iberian endemic shrub Colutea hispanica (Leguminosae)

Authors

  • Sonia G. Rabasa Área de Biodiversidad y Conservación, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos
  • David Gutiérrez Área de Biodiversidad y Conservación, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos
  • Adrián Escudero Área de Biodiversidad y Conservación, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos

DOI:

https://doi.org/10.3989/ajbm.2223

Keywords:

fruit set, hand pollination, inbreeding, outbreeding, self-compatibility

Abstract


Plant breeding systems have been viewed as mechanisms to promote outcrossing in order to increase genetic variability and prevent inbreeding depression. However, reduced fitness after crossing, outbreeding depression, has been often observed between individuals from different populations and more rarely, within populations. We studied the breeding system of Colutea hispanica using experimental hand pollinations in field conditions in one population in Central Spain in 2004 and 2006. Pollination experiments showed that C. hispanica set fruits from both self and cross-pollinations, suggesting that the species is highly self-compatible. In addition, fruit set was highest following geitonogamy in both years and no flowers set fruits from xenogamy in 2004. Although such enhanced reproductive success following selfing rather than crossing has been largely ignored in many studies on plant reproduction, it seems to be not as rare in plants as previously thought.

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Published

2009-12-30

How to Cite

Rabasa, S. G., Gutiérrez, D., & Escudero, A. (2009). Breeding system of the Iberian endemic shrub Colutea hispanica (Leguminosae). Anales Del Jardín Botánico De Madrid, 66(2), 279–284. https://doi.org/10.3989/ajbm.2223

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