Figure 3
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2164-9-170/MediaObjects/12864_2007_Article_1363_Fig3_HTML.jpg)
Identification of potential reference genes. Potential reference genes are identified by (A) geNorm and (B) NormFinder. Low M-value or variability represents the most constantly expressed reference genes.
Identification of potential reference genes. Potential reference genes are identified by (A) geNorm and (B) NormFinder. Low M-value or variability represents the most constantly expressed reference genes.