1. Inner Mongolia Potato Engineering and Technology Research Center Inner Mongolia University Hohhot 010021 China
2. Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural Sciences Shenzhen 518000 China
3. Cell and Molecular Sciences, The James Hutton Institute Invergowrie Dundee DD2 5DA UK