To search the gene field for all strains carrying a particular locus, you need to use the wildcard character *
For example, searching for his-3 finds 126 strains while searching for *his-3* finds 295 strains.
In the former case you only find strains with his-3 as their ONLY marker while in the latter case you find ALL strains that carry his-3 in addition to other markers.
You cannot use boolean logic, such as AND/OR or NOT.
To find strains from the Neurospora Knockout Project, you may search using the NCU number in the 'Gene' field. Please use the format "ncu0XXXX*" or "*XXXX*" where XXXX is the number of the locus you are interested in and the asterisk (*) is a wildcard.
If you cannot find something here , try the catalog