Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_278229_1 (no_of_counties INTEGER, commandery VARCHAR)

### Question ###
When yidu 宜都 is the commandery what is the lowest number of countries?

### Accurate SQL ###

SELECT MIN(no_of_counties) FROM table_278229_1 WHERE commandery = "Yidu 宜都"