As of September 17, 2007, dbEST lists:
Hordeum vulgare + subsp. vulgare (barley) 437,713 Triticum aestivum (wheat) 1,049,881 Hordeum vulgare subsp. spontaneum 24,161 Secale cereale 9,293 Triticum monococcum 11,190 Aegilops speltoides 4,315 Triticum turgidum subsp. durum 8,924 Triticum turgidum 1,938To keep up to date, check the latest EST listings at NCBI (number of sequences as of 9/17/2007):
Aegilops sp. ( 4,446) Hordeum sp. ( 461,906) Secale sp. ( 9,293) Triticum sp. ( 1,071,934) Other grass genera:Additional listings by genera may be found on the Triticeae sequence tally page.
Avena sp. ( 7,632) Brachypodium sp. ( 20,449) Oryza sp. ( 1,217,814) Pennisetum sp. ( 2,848) Saccharum sp. ( 255,964) Sorghum sp. ( 227,154) Zea sp. ( 1,271,325)
April 28, 2006: Triticum aestivum receives a significant increase in dbEST counts from the Y. Ogihara laboratory, Japan (359,570) and Danyluk laboratory, Canada (82,048). Also a recent influx of ESTs from the rice plant place it as the top plant EST collection, followed by wheat, maize, and arabidopsis.
September 1, 2006: Both Rice and Maize (both Poaceae) are at the top of the EST collections for plant species, each having over 1,100,000 ESTs! Triticum aestivum trails at a mere 855,000 ESTs.
1999:
Sequencing was conducted by participating laboratories of ITEC:
2000:
Phase One of this project was to have at least 40,000 ESTs available
publicly from 1 July 2000. However, by the deadline date, slightly more than half
of the intended goal was acheived.
Over 24346 sequences were generated in Phase I of this project.
Many thanks are extended to the participating
laboratories shown above which contributed towards this effort. Since the initial
planning for this project, many improvements have been realized for the capabilities
of sequencing throughput.
2001:
Phase Two of this project plans to have 300,000 ESTs
sequenced for wheat and 300,000 ESTs sequenced for barley. Other projects are in
progress which may contribute toward this goal.
2002:
This was a bumper crop year bringing the collection of Triticeae ESTs climbing over 780,000. 154,485 Triticum aestivum ESTs were
deposited by Scott Tingey from DuPont (E. I. DuPont de Nemours and Company). and 129,238 Triticum aestivum ESTs were deposited
from the Yasunari Ogihara laboratory, Kihara Institute for Biological Research, Japan. A major resource of 67,852 Hordeum vulgare
ESTs were added by the Andreas Graner laboratory at Institute for Plant Genetics & Crop Plant Research (IPK), Germany and 61,439
Hordeum vulgare ESTs were deposited by the Clemson University Genomics Institute (CUGI).
2003:
Over 7,000 wheat EST probes were mapped to the wheat genome by the Wheat EST Mapping Project (NSF DBI-9975989), and
a project was well underway to build a Physical Map of the Wheat D Genome (NSF DBI-0077766) using BAC clones.
Over 780,000 ESTs are still available for the Triticeae, with additional sequences still reported to be in the pipeline.
2004:
The Triticeae tally just reached 1,000,000 by the end of 2004. Significant strides were made in Triticeae research with the
creation and implementation of the 22K Barley1 Affymetrix chip and the release of data through the BarleyBase project.
Plans were initiated and preliminary testing was done for the creation of a Wheat Affymetrix chip.
July 18, 2004 : More than 7,000 additional Avena sativa EST sequences (a close relative to the Triticeae) were added to dbEST as reported at the VII International Oat Conference by H. Rines, USDA-ARS, University of Minnesota. Oat is a very close relative to the Triticeae family and has been a great resource for genome probes.
October, 2004 : Several papers appear in Genetics volume 168 describing the mapping of wheat ESTs to the wheat genome. Over 7,500 EST probes were able to detect over 16,000 loci using a series of aneuploid wheat lines derived from Triticum aestivum cv. Chinese Spring.
2005:
2005 was a good year, over 1,055,302 Triticeae ESTs were available to the public. These include sequences from the initial ITEC effort and other sequencing projects
which have made their sequences publically available.
October 14, 2005: Triticum aestivum falls behind Zea mays in dbEST counts as the most represented single plant species in the dbEST collection.
October 21, 2005: Brachypodium distachyon, a close relative of wheat and possibly a model system for the study of wheat genes has over 20,000 sequences contributed to dbEST by J. Vogel, USDA-ARS, Albany, CA. For more information, visit the Brachypodium project web site.