This warning popped up when I was about to complete the tree construct using DARwin software,
"Warning: All edge lengths are null values! Tree drawing is not possible."
Anyone familiar with DARwin software to provide useful tips to avoid such?
The problem could be due to low genetic diversity or less ssr fragment. Calculate mean of genetic diversity. Also try PCA.
Ibrahim thank you for your answer. Actually am using allelic SNP markers after from which it was sequenced. I finally overcome the problem by deleting the number of missing values (loci). After the data was cleaned, I was able to get the tree.
About the PCA, can it be calculated from the DARwin software as well?
Dear Caled, Could you please let me know how did you remove the missing SNPs from your sequence data! I have sequence of 98 samples and when I filtered them for less than 10% missing data no sample remains. What should I do?
Caleb Breria
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