File:Genetics of Self-Incompatibility (5169271315).jpg

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Petunias show that the mechanisms behind inbreeding prevention are similar to immune response. This diagram shows non-self pollen fertilizing a petunia and, conversely, self-pollen perishing. The female part of the petunia flower secretes an enzyme that is designed to deter pollen tube growth, thereby preventing fertilization. However, in the cases that the pollen has come from a genetically different plant, the pollen produces its own protein that combats the pistil's enzyme. With the enzyme out of the way, the pollen tube can keep growing and fertilization can occur. To learn more, see the NSF news release.

Credit: Zina Deretsky, National Science Foundation

Visit NSF’s Multimedia Gallery, at www.nsf.gov/news/mmg, for more images, and for video.
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Source Genetics of Self-Incompatibility
Author National Science Foundation

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Public domain This image is a work of a National Science Foundation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
This image was originally posted to Flickr by National Science Foundation at https://flickr.com/photos/37157086@N02/5169271315. It was reviewed on 19 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the United States Government Work.

19 January 2018

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current14:09, 19 January 2018Thumbnail for version as of 14:09, 19 January 20181,907 × 1,200 (486 KB)Artix Kreiger 2 (talk | contribs)Transferred from Flickr via Flickr2Commons

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