The high-density consensus map consists of both markers with known genetic map position and SNP markers placed on the linkage maps using minimum recombination frequency values. Two F2 Ae. umbellulata populations were used for linkage map construction. The first consisted of 140 F2 individuals that were derived from a cross made between two accessions of Ae. umbellulata: PI 298905, from Manisa, Turkey, and resistant to wheat stem rust pathogen P. graminis f. sp. tritici race TTTTF (isolate 01MN84A-1-2), and PI 542369, from Usak, Turkey, and susceptible to race TTTTF.

Wheat Information System (WheatIS) operating under the Wheat Initiative is a platform that provides a single-access site to wheat data distributed at different databases. GrainGenes created a WheatIS node, and made wheat QTL data searcahble through the WheatIS site at URGI: https://urgi.versailles.inra.fr/wheatis/#result/term=graingenes

Posted on: December 15, 2017

Barley Genetics Newsletter v46 (2016) is available at GrainGenes as a pdf document. Please follow the following links for all the available Barley Genetics Newsletter issues: https://wheat.pw.usda.gov/ggpages/bgn/. Thanks to Phil Bregitzer and Udda Lundqvist for their hard work and dedication.

A summary map of known stripe rust genes and QTL from the Maccaferri et al. (2015) genome-wide association study of stripe rust resistance in a diverse collection of hexaploid wheat (Triticum aestivum L.) is now available in the GrainGenes CMap viewer.

In collaboration with the International Wild Emmer Wheat Genome Sequencing Consortium, GrainGenes is providing pre-publication BLAST service for the Wild Emmer Genome Assembly (Zavitan WEWSeq v.1.0).

For further information, please go to: https://wheat.pw.usda.gov/GG3/wildemmer
For our BLAST service, please go to: https://wheat.pw.usda.gov/GG3/wildemmer_blast

Mapping, marker, and sequence data from the Barley 9K iSelect SNP Chip is now available in GrainGenes. The array is from the Comadran et al. 2012 study. It contains 7,842 SNPs in total, including a combination of 2,832 existing barley OPA (POPA) SNPs and 5,010 new SNPs found through next-generation sequencing. In all, 3,968 of the SNP markers were genetically mapped.

QTL and phenotypic data from the Chao et al. 2015 study of pre-harvest sprouting in durum wheat are now available at GrainGenes. Chao et al. developed a population from a cross between Langdon and a deletion line, LDN(521-2B), and used it to identify two QTLs on chromosome 2B that are associated with seed dormancy.

The 2016 Uniform Regional Hard Red Spring Wheat Nursery data has been added. Please follow the link provided below:

Phenotype and mapping data from a genome-wide association study of stem rust resistance in durum wheat are available in the GrainGenes database prior to publication. A panel of 429 lines from the National Small Grains Collection were used in the study to evaluate the genetic diversity of durum wheat resistance to a variety of stem rust races. Several quantitative trait loci for seedling stage and adult plant resistance to a collection of stem rust races were identified. A number of the QTL are potentially novel genes. The paper by Shiaoman Chao, Matthew N.