An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Key events in PAPhy evolution. Gene duplication and divergence of the PAPhy_a/b promoters and further duplications through polyploidization. For simplicity, rye is assumed to have just one PAPhy_a locus, and phylogenetic distance is not drawn to scale.