Polymorphisms at the Gli-A
u
1 and Gli-A
u
2 loci in wild diploid wheat (Triticum urartu) |
| |
| Authors: | M A Martín L M Martín J B Alvarez |
| |
| Institution: | (1) Departamento de Genética, Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Edificio Gregor Mendel, Campus de Rabanales, Universidad de Córdoba, Cordoba, 14071, Spain |
| |
| Abstract: | Triticum urartu is a wild diploid wheat that has been identified as the donor of the A genome in polyploid wheats. The gliadins of this species
were analysed by acid-PAGE in accessions from Armenia, Iran, Iraq, Lebanon, former-Soviet Union and Turkey. Up to twenty-six
different alleles for each locus (Gli-A
u
1 and Gli-A
u
2) implicated in the synthesis of these proteins, were found. The genetic diversity was high, although a great part of this
diversity is in danger of erosion given that the distribution of the combinations is not random. Consequently, loss of these
accessions could mean loss of the allelic variants. These results provide new basic knowledge regarding the genetic variability
of the seed storage proteins synthesised by the A
u
genome, as well as their potential to obtain novel germplasm for the improvement of wheat quality in breeding programmes. |
| |
| Keywords: | Diploid wheat Electrophoresis Genetic resources Gliadins |
| 本文献已被 SpringerLink 等数据库收录！ |
|
