Brittonia

, Volume 19, Issue 4, pp 374–390

Interspecific hybridization and its evolutionary significance in the genus Aquilegia

  • Ronald J. Taylor
Article

DOI: 10.2307/2805535

Cite this article as:
Taylor, R.J. Brittonia (1967) 19: 374. doi:10.2307/2805535

Abstract

Various hybrid combinations of 18 species and varieties ofAquilegia were produced, and several cross-pollinations were made which failed to produce hybrids. Pollen fertility of hybrids was generally high, with a total mean of approximately 50%, but highly variable among hybrid combinations and consistently lower than that of parental species. With the exception of frequent occurrence of giant pollen grains and rare synaptic failure of one or two homologous pairs, meiotic behavior in hybrid pollen mother cells appeared to be completely regular.

Representatives of the Vulgaris Complex were observed to be intermediate genetically and morphologically leading to the interpretation of ancestral status among extant species. The greatest genetic diversity within the genus was shown to exist betweenA. ecalcarata and members of the Caerulea Complex.

Copyright information

© The New York Botanical Garden 1967

Authors and Affiliations

  • Ronald J. Taylor
    • 1
  1. 1.Western Washington State CollegeBellingham

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