# which ASVs are within an OTU?

**URL:** <https://forum.qiime2.org/t/which-asvs-are-within-an-otu/27275>\
**Category:** User Support\
**Tags:** vsearch, taxonomy\
**Created:** [August 1, 2023, 12:07pm UTC](https://forum.qiime2.org/t/which-asvs-are-within-an-otu/27275 "2023-08-01T12:07:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Tyler\_Carrier](https://forum.qiime2.org/user_avatar/forum.qiime2.org/tyler_carrier/32/4786_2.png) [@Tyler\_Carrier](https://forum.qiime2.org/u/Tyler_Carrier)\
**Post date:** [August 1, 2023, 12:07pm UTC](https://forum.qiime2.org/t/which-asvs-are-within-an-otu/27275/1 "2023-08-01T12:07:40Z")

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Hello,

I converted my ASV table into 97% OTUs for a co-diversification analysis outside of Q2. The cluster-features-de-novo via vsearch provides the centroid sequence defining each OTU cluster. However, I am looking for each ASV sequence within each OTU. Is this possible within Q2?

Thank you!

Regards,  
Tyler

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**Author:** ![colinvwood](https://forum.qiime2.org/user_avatar/forum.qiime2.org/colinvwood/32/17303_2.png) [@colinvwood](https://forum.qiime2.org/u/colinvwood)\
**Post date:** [August 1, 2023, 4:28pm UTC](https://forum.qiime2.org/t/which-asvs-are-within-an-otu/27275/2 "2023-08-01T16:28:33Z")

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Hello @Tyler_Carrier,

Unfortunately the way that qiime wraps the vsearch command means this information is discarded. You could use vsearch on its own to do this.

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**Author:** ![system](https://forum-qiime2-org.s3.dualstack.us-west-2.amazonaws.com/original/3X/2/1/21af5fe23cb6f4579467c66a9ed94e55274ca7bd.svg) [@system](https://forum.qiime2.org/u/system)\
**Post date:** [September 1, 2023, 10:29pm UTC](https://forum.qiime2.org/t/which-asvs-are-within-an-otu/27275/3 "2023-09-01T22:29:03Z")

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