Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-01893-z, published online 12 May 2017

The original version of this Article contained an error in the title of the paper, where “Sexual homomorphism in dioecious trees: extensive tests fail to detect sexual dimorphism in Populus” was incorrectly given as “Sexual homomorphism in dioecious trees: extensive tests fail to detect sexual dimorphism in Populus”. This has now been corrected in the PDF and HTML versions of the Article.