CRISPR-P: a web tool for synthetic single-guide RNA design of CRISPR-system in plants.

This work was supported by the National Basic Research Program of China (863 program) ( 2012AA10A304 ), the Program for New Century Excellent Talents in University ( NCET-13-0807 ), and the Fundamental Research Funds for the Central Universities ( 2013PY004, 2014PY018 ). No conflict of interest declared.