Fully Validated, Highly Scalable, Male Plant DNA Test

Cannabis seedlings healthy marijuana plants isolated white

The FemINDICAtor® qPCR Plant Sex Detection Assay uses DNA technology to identify male cannabis plants weeks before they show any visual sex features. Males can then be removed from a grow in order to maintain female flowers rich in cannabinoids. This method is an improvement over traditional visual inspection because it allows growers to identify male plants earlier, more accurately, and with less labor.


DNA is extracted from one of the plant’s leaflets (as early as the second set of true leaves) using a simple boil prep, and then run on a qPCR machine with the FemINDICAtor assay to determine the plant’s sex. Instrument run time is just 1 hour.


MCR Labs in Massachusetts accurately identify over 99% of the males within a cannabis planting of more than 900 seedlings.


The FemINDICAtor Assay eliminates the need for time-consuming visual inspections, which are often prone to human error.

*All Medicinal Genomics chemicals and reagents are manufactured in a facility certified to ISO 9001 standards.

Getting Started

Getting started with the FemINDICAtor is as easy as 1, 2, 3.

Purchase reagents and qPCR instrument from Medicinal Genomics. View Starter Bundle or Build Your Own Order.

Purchase equipment and consumables from other vendors. View the qPCR Equipment and Consumables Spreadsheet

Prefer to Outsource Testing?

Cultivators who don’t have enough volume, lab experience, or start-up cash to test seedlings in-house can outsource to one of our partner labs. They have great turnaround time and aren’t going to use your genetic data to fuel a breeding operation.