# shared OTU's

**URL:** <https://forum.mothur.org/t/shared-otus/721>\
**Category:** Commands in mothur\
**Created:** [December 2, 2011, 2:50pm UTC](https://forum.mothur.org/t/shared-otus/721 "2011-12-02T14:50:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ajone](https://avatars.discourse-cdn.com/v4/letter/a/e9c0ed/32.png) [@ajone](https://forum.mothur.org/u/ajone)\
**Post date:** [December 2, 2011, 2:50pm UTC](https://forum.mothur.org/t/shared-otus/721/1 "2011-12-02T14:50:30Z")

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I have generated a Venn-diagram to see how many OTU’s that are shared between the groups. However, now I want to know by the OTU number which Otu’s are shared by the groups, so I from the Classify.OTU command can find the phylogeny of the shared OTU’s. Is there a way to do this. getshared.seqs does not seems to do the trick.

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**Author:** ![pschloss](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.mothur.org/pschloss/32/4_2.png) [@pschloss](https://forum.mothur.org/u/pschloss)\
**Post date:** [December 3, 2011, 2:23pm UTC](https://forum.mothur.org/t/shared-otus/721/2 "2011-12-03T14:23:19Z")

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Try this…

[http://www.mothur.org/wiki/Get.sharedotu](http://www.mothur.org/wiki/Get.sharedotu)

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**Author:** ![shuixia100](https://avatars.discourse-cdn.com/v4/letter/s/f19dbf/32.png) [@shuixia100](https://forum.mothur.org/u/shuixia100)\
**Post date:** [December 4, 2011, 9:59am UTC](https://forum.mothur.org/t/shared-otus/721/3 "2011-12-04T09:59:07Z")

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You should use the "make.shared"command, Here is how you do it  
[http://shuixia100.weebly.com/1/post/2011/12/mothur-tutorial-4\_analysis-example1.html](http://shuixia100.weebly.com/1/post/2011/12/mothur-tutorial-4_analysis-example1.html)

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**Author:** ![ajone](https://avatars.discourse-cdn.com/v4/letter/a/e9c0ed/32.png) [@ajone](https://forum.mothur.org/u/ajone)\
**Post date:** [December 4, 2011, 1:56pm UTC](https://forum.mothur.org/t/shared-otus/721/4 "2011-12-04T13:56:54Z")

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Pat, You’re right. Sometimes it goes to quick. Haven’t noticed the third column.

Thx

Anders