Molecular characterization of vernalization loci VRN1 in wild and cultivated wheats.

ABSTRACT:

Background

Variability of the VRN1 promoter region of the unique collection of spring polyploid and wild diploid wheat species together with diploid goatgrasses (donor of B and D genomes of polyploid wheats) were investigated. Accessions of wild diploid (T. boeoticum, T. urartu) and tetraploid (T. araraticum, T. timopheevii) species were studied for the first time.

Results

Sequence analysis indicated great variability in the region from -62 to -221 nucleotide positions of the VRN1 promoter region. Different indels were found within this region in spring wheats. It was shown that VRN1 promoter region of B and G genome can also contain damages such as the insertion of the transposable element.Some transcription factor recognition sites including hybrid C/G-box for TaFDL2 prote

SUBMITTER: Golovnina KA 

PROVIDER: S-EPMC3095301 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature