Use of commercial ink marker pen in genetic analysis

--Yong-Bao Pan and Michael G. Muszynski

Waxy marker pencils are used routinely in maize genetic analysis to assist accurate counting. The marker is difficult to remove and creates certain problems in photography if the maize ear or kernel is to be photographed. Recently, we found an alternative but also efficient way to mark the maize kernels simply by using the ink marker pens of various colors available on common market. The ink marker can be easily removed by any type of tissue paper shortly after the counting. Therefore, unlike the waxy marker pencil, the ink marker pen leaves no problem for photography.


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