Sorry for a quite basic question regarding RNAseq analysis.
For the log-transformed FPKM values which made from Cuffdiff output, I have created a gene expression heatmap by pheatmap package in R. Those genes in rows are hierarchical clustered by pheatmap (clustering_distance_rows = "euclidean") to form a dendrogram structure. I wonder that how could I get hundreds of gene ids belonged to an interested branch (that is too many to be possibly read from row names) ? Does pheatmap offer this feature or should I use another R package to get those ids? Please give me suggestion and detail explanation if possible.
Thank you very much.