Wheat DArT^®

Triticarte’s wheat DArT service is based on a survey of about 16,000 clones from a PstI(TaqI) genomic representation of hexaploid wheat.

2,500 markers polymorphic in a wide range of Australian and European wheat cultivars were discovered in that genomic representation and are used in Triticarte’s service, Wheat PstI(TaqI) v2.3.

A survey of about 19,000 clones from a PstI(TaqI) genomic representation of a wide range of Triticum species of various ploidy resulted in the discovery of about 2,500 markers polymorphic in a wide range of Triticum germplasm. Combined with the markers of version 2.3, these markers are used in Triticarte service Wheat PstI(TaqI) v2.6.

Approximately 400 unique markers will be identified and developed into future service, Wheat PstI(TaqI) vX.0. This service will provide the genotypes based on the sequenced, most informative, unique markers, most of them mapped on an integrated genetic map of wheat.

A whole-genome integrated map for a cross between wheat cultivars Cranbrook and Halberd using 339 RFLP, SSR and AFLP markers, 71 STM markers and 339 DArT markers is described in the 2006 paper, "Diversity arrays technology (DArT) for high-throughput profiling of the hexaploid wheat genome" by Akbari et al. in Theoretical and Applied Genetics,, DOI 10.1007/s00122-006-0365-4.

An alignment of the maps of 9 crosses is now available. The Read Me document describes the content and rationale: this (Version 1.2) is a work in progress. For more information contact peter  DiversityArrays.com

Several high density maps are being built and will be released by August 2008.