Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-13981-1, published online 01 November 2017

The original version of this Article contained a typographical error in the spelling of the author Hongjuan Gao, which was incorrectly given as Hongjun Gao.

In addition, the original version of this Article contained a typographical error in the Materials and Methods section under the subheading ‘Identification of orthologs’,

“Hence, we excluded ortholog pairs with Ka/Ks > 0.001.”

now reads:

“Hence, we excluded ortholog pairs with Ka/Ks < 0.001.”

These errors have now been corrected in the PDF and HTML versions of the Article, and in the accompanying Supplementary materials file.