In this publication detection of both nuclear and mitochondrial DNA by BrdU labeling is described:

http://www.ncbi.nlm.nih.gov/pubmed/23300711

I hope this information helps you.

Best regards, Christian

thanks a lot Christian Q. Scheckhuber  :)

Right, but do careful controls - incorporation may also be due to mtDNA repair, not replication.

@rudolf j wiesner: thanks for suggestion. may i know how to set controls for determining,  labelling is due to replication or repair ?

thanks :)

I suggest to read some papers where people have used this method!