Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

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.

View full-text article in PMC

. 2016 Apr 18;16:89. doi: 10.1186/s12870-016-0776-6

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© Jiang et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

PMC Copyright notice

Fig. 5 — Scenarios that were tested for the origin of P. × jrtyschensis (pj), P. nigra (pn) and P. laurifolia (pl). N1, N2 and N3 represent current effective population sizes of P. nigra, P. laurifolia and P. × jrtyschensis, respectively. For Scenarios 1–3, t1 is the time of origin of P. × jrtyschensis. t2 represents divergence time between P. nigra and P. laurifolia in “generations ago” and NA is the effective population size of the common ancestor of the three species