PATTERNS OF REPRODUCTIVE ISOLATION IN NOLANA (CHILEAN BELLFLOWER)
Article first published online: 19 MAR 2012
© 2012 The Author(s). Evolution© 2012 The Society for the Study of Evolution.
Volume 66, Issue 8, pages 2628–2636, August 2012
How to Cite
Jewell, C., Papineau, A. D., Freyre, R. and Moyle, L. C. (2012), PATTERNS OF REPRODUCTIVE ISOLATION IN NOLANA (CHILEAN BELLFLOWER). Evolution, 66: 2628–2636. doi: 10.1111/j.1558-5646.2012.01607.x
- Issue published online: 26 JUL 2012
- Article first published online: 19 MAR 2012
- Accepted manuscript online: 21 FEB 2012 02:45PM EST
- Received August 23, 2011 , Accepted January 30, 2012 , Data Archived: Dryad doi:10.5061/dryad.ht7d7441
- Character displacement;
We examined reproductive isolating barriers at four postmating stages among 11 species from the morphologically diverse genus Nolana (Solanaceae). At least one stage was positively correlated with both genetic and geographic distance between species. Postzygotic isolation was generally stronger and faster evolving than postmating prezygotic isolation. In addition, there was no evidence for mechanical isolation, or for reproductive character displacement in floral traits that can influence pollinator isolation. In general, among the potential isolating stages examined here, postzygotic barriers appear to be more effective contributors to reducing gene flow, including between sympatric species.