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. 2016 Feb 9;7:119. doi: 10.3389/fmicb.2016.00119

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Copyright © 2016 Kang, Xiang, Yuan, Zhao, Feng, Gao, Li, Li, Ning and Ren.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Phylogenetic tree of NDV strains. (A) Phylogenetic analysis based on the F-gene open reading frame (1662 nt) of viruses representing NDV class I and II available in Gen Bank. (B) Phylogenetic analysis based on the complete genome sequence (15192 nt) of the GM, YF18, and GZ289 strains derived from different birds. Viruses highlighted with the black triangles (▲) were characterized in this study. The tree was constructed using the Maximum Likelihood method with the Generalized Time Reversible GTR+G+I4 model of software MEGA (version 5.02), with 1000 bootstrap trials to assign confidence to the groupings.