Filters

International Maize & Wheat Improvement Center (CIMMYT)

Wellhausen-Anderson Genetic Resources Collections

CIMMYT manages diverse collections of maize and wheat. The wheat collection numbers about 150,000 accessions from more than 100 countries, and consists of bread wheat, durum wheat and triticale landraces, cultivars, genetic stocks, breeders’ materials and wild relatives.

A CIMMYT technician counts maize seeds in the CIMMYT genebank.
A CIMMYT technician counts maize seeds in the CIMMYT genebank. Credit: Getty Images Reportage photographer Juan Arrendodo

The maize collection of 28,000 accessions includes the world’s largest collection of maize landraces, created and maintained by farmers over many generations, as well as wild teosinte and Tripsacum wild relatives of maize.

CIMMYT is actively assessing the diversity of the maize and wheat seed collections using genomics technologies. Developing links between accession data and data from breeders are another focus of work. The genebank has been a pioneer in using GRIN-Global and in establishing a QMS. Several operations are certified to ISO 9001:2008 standard.

The Seed Health Unit ensures that all seed conserved in the genebank, as well as any seed imported to or exported from any of CIMMYT’s research locations, meets international phytosanitary standards. The Seed Health Unit has attained ISO/IEC 17025 accreditation.

Useful information

Genetic Resources Program director: Kevin Pixley
Maize germplasm bank manager: Denise Costich
Wheat germplasm bank manager: Tom Payne
Seed health laboratory manager: Monica Mezzalama

Maize

Wheat

Website
Order accessions from CIMMYT
Search Genesys for accessions at CIMMYT

A CIMMYT technician tends to maize plants in a greenhouse in Texcoco.
A CIMMYT technician tends to maize plants in a greenhouse in Texcoco. Credit: Getty Images Reportage photographer Juan Arrendodo

 

Status of CIMMYT genebank according to performance targets

arrow-iconCreated with Sketch. arrow-iconCreated with Sketch.
2016
Accessions183,083
Availability86%
Safety duplication63%
Passport Data Completeness Index (Average)5.31

CIMMYT Genetics Resources Program by the numbers: full-time staff equivalents 17; date to reach performance targets maize – 2021, wheat – 2017; projected accession numbers in 2022 – maize 30,092; wheat – 162,838; QMS has ISO 9001:2008 accreditation

CIMMYT Genetics Resources Program by the numbers

arrow-iconCreated with Sketch. arrow-iconCreated with Sketch.
Full-time staff equivalents17
Date to reach performance targetsMaize 2021; wheat 2017
Projected accession numbers in 2022Maize 30,092; wheat 162,838
QMS has ISO 9001:2008 accreditation

 

A CIMMYT worker husks an ear of maize to check the grain’s ripeness in an evaluation field in Texcoco.
A CIMMYT worker husks an ear of maize to check the grain’s ripeness in an evaluation field in Texcoco. Credit: Getty Images Reportage photographer Juan Arrendodo

Publications

More related publications
close-icon