cuffdiff does not gene name

[szy0931]

Hi, all
I am analyzing my data in Galaxy using bowtie2--cufflinks--cuffmerge--cuffdiff.
I used the annotation gff file in the steps of cufflinks and cuffmerge.
Now in the result of cuffdiff, I cannot find the gene names.
My results in the sqlite file have such columns:
gene _id sample_1 sample_2 status values_1 value_2 log2_fold_change test_stat p_value 1_value significant
How can I let the result shows up gene name?
Thank you!

[szy0931]

update
I just found the gff file I used does not have the column gene name though it has gene name described in the last column with other information.
So, I think that is the reason

[szy0931]

update:
I found a file of feature_table.txt has gene names. How can I convert the feature_table.txt file in to gtf or gff3 file?

[SylvainL]

With the package rtracklayer for R it is quite easy. Import your table, make a GRanges object with the correct elementMetadata and then export in gtf...