Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium.

ABSTRACT: The earliness per se gene Eps-A ( m ) 1 from diploid wheat Triticum monococcum affects heading time, spike development, and spikelet number. In this study, the Eps1 orthologous regions from rice, Aegilops tauschii, and Brachypodium distachyon were compared as part of current efforts to clone this gene. A single Brachypodium BAC clone spanned the Eps-A ( m ) 1 region, but a gap was detected in the A. tauschii physical map. Sequencing of the Brachypodium and A. tauschii BAC clones revealed three genes shared by the three species, which showed higher identity between wheat and Brachypodium than between them and rice. However, most of the structural changes were detected in the wheat lineage. These included an inversion encompassing the wg241-VatpC region and the presence of six unique genes.

SUBMITTER: Faricelli ME 

PROVIDER: S-EPMC2862174 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature