Abstract Detail



Reproductive Processes

Kantor, Alexis [1], Pretz, Chelsea [2], Smith, Stacey D. [3].

The Effect of Geography on Intraspecific Cross Compatibility.

Studies in pollination biology provide insight into the reproductive behavior of plants, the co-evolution between plants and pollinators, and genetic compatibility. Physalis acutifolia, the sharpleaf groundcherry, is a self-incompatible flowering plant in the Solanaceae family native to the southwestern United States. Self-incompatibility is a reproductive adaptation that serves to promote outcrossing and increase genetic fitness. Accordingly, this feature is present in the reproductive systems of many angiosperms. In this study, ten flowering P. acutifolia plants from three different locations in New Mexico were both selfed and outcrossed within species. The goal of performing crosses was to understand how reproductive variation relates to geographic location. 240 crosses were performed within and between ten flowering plants from September 2017 to March 2018. The crosses were performed by hand in a controlled greenhouse setting. Flowers received one of three treatments: emasculated and not crossed (negative control); pollinated with self pollen (self treatment); crossed with individuals from the same location (local treatment); and crossed with individuals from a different location (remote treatment). These results are interpreted in light of previous breeding system literature on this species and will provide new insight in variation in cross compatibility in P. acutifolia.


Related Links:
Self-incompatibility systems, mating systems that promote outcrossing, may be favored by the gene pool over self-compatible mating systems.
Self-incompatibility has been reported to be a gametophytic system.


1 - 810 20th St, Unit 204, Boulder, CO, 80302, United States
2 - University of Colorado Boulder, Department of Ecology and Evolutionary Biology
3 - University Of Colorado-Boulder, EBIO Department, Campus Box 0334, Boulder, CO, 80309, United States

Keywords:
Pollination biology
Physalis acutifolia
Solanaceae
self-pollination
outcrossing
New Mexico
mating system.

Presentation Type: Poster
Number: PRP008
Abstract ID:334
Candidate for Awards:None


Copyright © 2000-2018, Botanical Society of America. All rights reserved