I have a problem with the program DNAsp v 5.10. I have a FASTA file with 26 sequences. I downloaded 18 sequences that correspond to 18 Haplotypes. I am sure they are different. When I ask the program for the haplotype data file of only these 18 sequences, it shows 18 haplotypes. But when I ask the program to generate the haplotype data file with all the 26 sequences, it tells me that they are 19 or 22 (taking or not sites with variation in the missing data), and putting together as the same haplotype H1, H11, H13 and H18 and as one haplotype H17 , H16, H15, H10. So these 18 sequnces are not 18 H anymore. Is there a mistake I am doing?

I would greatly appreciate your help!!

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