The Arabidopsis Information Resource (TAIR) is an online database of genetic and molecular biology data for Arabidopsis thaliana, a key reference plant. It is an indispensable resource for Arabidopsis researchers.


TAIR was established in 1999 and continues to provide the most comprehensive and current set of plant gene function data.  Plant biologists working with both Arabidopsis and other plants use TAIR because the comprehensive information available for Arabidopsis is often directly relevant to other plant species.


Institutional and personal subscriptions provide most of the support for TAIR. Phoenix Bioinformatics, a non-profit corporation, operates TAIR.

Click here to see our current list of institutional subscribers


Access to up-to-date curated information

Expert Support


Locus Page

Gene Ontology Annotations


Comprehensive Search

...And More!


Arabidopsis and Plant Research

Dr. Arjun Krishnan, Princeton University, USA

“TAIR saved me three months of map-based cloning work due to its morphological phenotype database."

“I'm a Chinese Ph.D student and my research interests are plant miRNAs and other small RNAs. The huge datasets provided by TAIR really help us doing bioinformatics analysis of small RNAs in Arabidopsis.”

Translational research

“I am a Principal Investigator (PI) at [company name not shown] where I perform discovery research using Arabidopsis as a model system. TAIR has been a critical tool in every project and stage of my scientific development; from grad student to post-doc to PI.

The TAIR resource is invaluable not only in Arabidopsis systems, but as an annotation and comparative tool in plant biology.

I highly recommend TAIR.

Dr. Shai Lawit, A Leading Agricultural Biotech Company

Phoenix Bioinformatics is funded by subscription support, donations, and a grant from the Alfred P. Sloan Foundation.


Positions taken by Phoenix Bioinformatics represent the views of Phoenix itself and not those of the Alfred P. Sloan Foundation or its trustees, officers, or staff.