1 / 12

Heritability of Pinyon Pine Stomata

Heritability of Pinyon Pine Stomata. By: Tara Llewellyn and Dr. Amy Whipple Northern Arizona University. Brief Overview. Introduction - Background Information - Hypothesis Methods and Materials - Cone collection and genetic testing

erasmus
Download Presentation

Heritability of Pinyon Pine Stomata

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Heritability of Pinyon Pine Stomata By: Tara Llewellyn and Dr. Amy Whipple Northern Arizona University

  2. Brief Overview • Introduction - Background Information - Hypothesis • Methods and Materials - Cone collection and genetic testing - Visionary Digital BK-Plus Imaging System - Image J program • Results • Conclusion

  3. Introduction • Climate change – limits already scarce water resources. • Natural selection – to create new populations. • Heritability - variation in a particular trait that can be attributed to inherited genetic factors.

  4. Pinyon Pine trees may adjust by altering their stomata traits. CO2 H2O

  5. Hypothesis • There will be a correlation between the offspring's and their parent’s stomata measurements. • A significant relationship between the trait of the parents and the offspring suggest the trait is heritable. • If the trait is heritable it can evolve in response to natural selection for increased water use efficiency under climate change.

  6. Methods and Materials • Cones were collected to determine the mother and genetic testing was done to determine the father. • After the parents were identified, samples of needles were collected to be used for the Visionary Digital Imaging System. *Picture from Visionary Digital Inc.

  7. Example 1:

  8. Example 2:

  9. Image J • To measure the average stomata area, a computer program was used. • Image J is a free Java-based image processing program. • Each image was cropped and then analyzed.

  10. Results • Equation of the line: y = 0.39x+104 • P value = 0.0031

  11. Conclusion • We conclude that stomata traits such as surface area are heritable and that these traits are expected to evolve from natural selection.

  12. Acknowledgements: • The Arizona Space Grant Consortium • Nadine Barlow and Kathleen Stigmon • Dr. Amy Whipple • The Pinyon Pine Research Group • Neil Cobb and the Biology Department

More Related