TAIR (The Arabidopsis Information Resource)
The leading resource for plant biologists
TAIR (The Arabidopsis Information Resource) is a one-stop resource for everything related to Arabidopsis thaliana, a key reference plant for researchers. Established in 1999, TAIR offers the most comprehensive and current set of plant gene function data in the world, including individual genes, genetic sequences, gene family, gene expression, and the complete genome map — all augmented with links and citations to the relevant literature alongside built-in visualization tools.
TAIR is constantly updated, curated, and maintained by PhD plant biologists who ensure that all the information we provide is current, vetted, and reliable. TAIR curators read peer-reviewed research articles, identify relevant experimental data, and organize it into the TAIR database, creating metadata using a controlled vocabulary that enables powerful search and cross-reference across organisms. Each year, over 3,000 articles and 5,000 experiment-based annotations are added to the database, making TAIR an indispensable resource for thousands of researchers in plant biology, pharmacology, and crop science.
Benefits of TAIR
Extensive
TAIR’s data breadth is substantial, saving researchers countless hours of genetic research, database consultation, and literature review.
High-quality
TAIR’s expert curators ensure that our resources are always discoverable, up-to-date, and accurate.
Flexible
TAIR provides information at the single gene, gene group, and whole genome level and offers a wide variety of field-specific visualization and analytical tools to meet research needs.
Community first
Developed for and by the plant biology community, TAIR welcomes user submissions and serves as a hub for job postings, events, and other news.
TAIR is Accessible
TAIR’s Accessibility Conformance Report details the resource’s compliance with Web Content Accessibility Guidelines (WCAG) levels 2.0, 2.1, and 2.3.
2026 Pricing
Depositing data into TAIR is free, as is access to TAIR community resources, including jobs, events, news, and basic content. In order to keep TAIR sustainable, we charge reasonable usage fees for the data curation, integration, and validation as well as for maintaining and improving our software infrastructure.
Individual researchers with nonprofit, government, or academic institutions
Pay as you go
| Package | Amount | Cost |
|---|---|---|
| Demo | 50 usage units per year For users who access TAIR 1-2 times a year |
Complimentary when you link your ORCiD in TAIR |
| Introductory, 60% off | 1st bundle of 300 usage units in a 12-month period | $206 |
| Standard | Each subsequent bundle of 300 usage units in a 12-month period For weekly TAIR users |
$515 |
| Super | Bundle of 900 usage units For daily TAIR users |
$1,160 |
Institutional subscriptions for nonprofits, governments, & universities
Institutional subscription fees are calculated based on page views from relevant IP addresses from July 1- June 30th of the previous year.
| Tier | Paid page views | Cost |
|---|---|---|
| Legacy pricing (must renew on time to qualify) | <1,000 | $950 |
| Tier 4 | <1,000 | $1,550 |
| Tier 3 | 1,000-4,999 | $3,950 |
| Tier 2 | 5,000-9,999 | $7,300 |
| Tier 1 | 10,000+ | $10,350 |
For-profit companies
Corporate subscriptions are based on annual revenue
| Tier | Annual revenue | Cost |
|---|---|---|
| Micro | < $2 million | $5,660 |
| Small | $2-$5 million | $11,330 |
| Medium | $5-$10 million | $41,200 |
| Large | $10+ million | $56,650 |
Access to TAIR is complimentary
For teachers. If you would like to use TAIR as instructional material and your institution has not yet subscribed, please contact us for complimentary access for you and your students’ accounts for the duration of your course.
FAQs
What is TAIR? Who uses TAIR?
The Arabidopsis Information Resource (TAIR) is an online database of genetic and molecular biology data for the model plant Arabidopsis thaliana. TAIR is considered an indispensable resource for thousands of researchers around the world who work with Arabidopsis. TAIR is also commonly used by plant biologists working with other plants because the amount of information available for Arabidopsis is vast compared with most other plants and the research results from Arabidopsis are often directly relevant to other plant species.
What is Arabidopsis thaliana?
Arabidopsis thaliana is an important reference plant for the plant kingdom. Because of its small physical size, short life cycle and small genome, it was adopted as the standard laboratory organism for the study of higher plants and its genome sequence was completed in 2000. Many fundamental research questions about plants have been studied in Arabidopsis in great detail, such as how plants grow, reproduce, sense their environment and adapt to it. Approximately 4000 new research articles on Arabidopsis are published every year.
How is TAIR different from bibliographic databases like PubMed and BIOSIS?
TAIR is a database of knowledge about Arabidopsis, contributed by researchers or extracted from (and linked back to) research articles by biocurators with graduate or postdoctoral training as plant biology researchers. The information is presented in a highly integrated and standardized format for efficient querying and use in large scale data analyses. Searches within TAIR are not bibliographic searches; they search the accumulated knowledge about Arabidopsis directly, with links to the articles from which the information was gathered.
How do you track TAIR usage? Where can I get my institution's usage statistics?
We use an internal tracker that tracks usage based on IP address. We are happy to pull your usage for you at your request.
What is the difference between TAIR and other resources with similar data sets?
There are many different sites that display Arabidopsis data. TAIR produces gene function annotation data through its own curation effort by professional curators and by collecting data directly from authors through a TAIR-journal collaboration. As a data provider, we share data with resources after the data have been in TAIR for one year, which means that the TAIR data you see at these other sites is at least a year out of date.
Testimonials
“The world’s most valued plant database”
Nature (2009) 462, 258-259
“TAIR saved me three months of map-based cloning work due to its morphological phenotype database.”
Dr. Christopher DeFraia, The Ohio State University, USA
“The huge datasets provided by TAIR really help us doing bioinformatics analysis of small RNAs in Arabidopsis.”
Yijun Meng, Department of Bioinformatics, Zhejiang University, China
“TAIR is the resource for plant scientists like me involved in both experimental and computational work…. Rarely does a day go by when I don’t use TAIR. It is a clear model for web resource for other plants.”
Dr. Arjun Krishnan, Princeton University, USA
“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
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