Jump to Main Content
- Marais, G. F.; Bekker, T. A.; Eksteen, A.; McCallum, B.; Fetch, T.; Marais, A. S.
- Euphytica 2010 v.171 no.1 pp. 71-85
- Aegilops speltoides, etc ; rust diseases; plant breeding; cell death; microsatellite repeats; germ cells; wheat; plant fertility; genes; Triticum aestivum; disease resistance; chromatin; genetic recombination; genetic markers; introgression; Show all 15 Subjects
- ... Rust resistance genes (introgressions S24 and S13) transferred to hexaploid wheat from two Aegilops speltoides accessions could not be used commercially due to associated gametocidal (Gc) genes. Crosses to wheat followed by rigorous selection for increased fertility were employed in an attempt to separate the unmapped S24 stem rust resistance from the Gc gene(s). However, improved fertility of the ...
- Marais, G. F.; Badenhorst, P. E.; Eksteen, A.; Pretorius, Z. A.
- Euphytica 2010 v.171 no.1 pp. 15-22
- Aegilops sharonensis, etc ; Triticum aestivum; wheat; plant breeding; disease resistance; genes; chromatin; chromosome translocation; genetic recombination; genetic markers; microsatellite repeats; chromosome mapping; telomeres; germplasm; Show all 14 Subjects
- ... The Lr56/Yr38 translocation consists primarily of alien-derived chromatin with only the 6AL telomeric region being of wheat origin. To improve its utility in wheat breeding, an attempt was made to exchange excess Ae. sharonensis chromatin for wheat chromatin through homoeologous crossover in the absence of Ph1. Translocation heterozygotes that lacked Ph1 were test-crossed with Chinese Spring nulli ...