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In Partek Flow, fold change is in linear scale (even the input data is in log scale). It is converted from ratio, which is the LSmean of group one divided by LSmean of group two in your comparison. When ratio is greater than 1, fold change is identical to ratio; when ratio is less than 1, fold change is -1/ratio. There is no fold change value between -1 to 1. When ratio/fold change is 1, it means no change between the two groups.

Can I label

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a Volcano plot with gene names?

Yes, go to Style in the Data Viewer and make sure Gene name is selected under "Labeling". Next, go to the in plot selection tools (right side of the graphic) and use any of the selection tools to select the cells that you would like to label. You can use ctrl or shift to select multiple populations at once. For more information on the Volcano plot click here. 

Biological Interpretation FAQs

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