Publication Date
1993
Description
Rust in Macroptilium atropurpurewn cv. Siratro is an important disease, reducing both yield and quality, Resistance to the disease is conditioned by several genetic mechanisms, including single dominant. genes, multiple dominant genes, single major genes together with genes of lesser effect, and single recessive genes. Near-isogenic lines have been developed by backcrossing dominant genes into Slratro background, and these lines used to demonstrate pathogenic specialisation in Mexican collections of the rust organism. No variation In virulence is apparent in S Australian isolates of the fungus, Pour of the backcross populations, with resistance genes from geographically diverse origins, have been mixed as a multiline to form a new rust-resistant cultivar.
Citation
Bray, R A., "Breeding for Rust Resistance in Marcoptilium atropurpureum" (2025). IGC Proceedings (1993-2023). 8.
https://uknowledge.uky.edu/igc/1993/session59/8
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Breeding for Rust Resistance in Marcoptilium atropurpureum
Rust in Macroptilium atropurpurewn cv. Siratro is an important disease, reducing both yield and quality, Resistance to the disease is conditioned by several genetic mechanisms, including single dominant. genes, multiple dominant genes, single major genes together with genes of lesser effect, and single recessive genes. Near-isogenic lines have been developed by backcrossing dominant genes into Slratro background, and these lines used to demonstrate pathogenic specialisation in Mexican collections of the rust organism. No variation In virulence is apparent in S Australian isolates of the fungus, Pour of the backcross populations, with resistance genes from geographically diverse origins, have been mixed as a multiline to form a new rust-resistant cultivar.