different otu numbers in otu table and rep seqs

[jiachen zhu]

Hi all,

I found the numbers of otus between my feature table and rep seqs file are different. There are six otus are not exist in my feature table but in the rep seqs file. Does it reasonable? 

the company explained that when the sequence aligns to two otus, it will be allocated to the otu with high abundance, while the other otu is not allocated, so its the abundance is 0. They said it make no influence to the downstream analysis. Does the company are correct?

Best Regards

Jiachen