Offered Papers Theme A: Efficient Production from Grassland
Description
Intergeneric hybrids between closely related Lolium and Festuca species are used to broaden the gene pool and provide plant breeders with options to combine complementary traits to develop robust but high quality grass varieties. Androgenesis was found to be an effective procedure for selecting Lolium-Festuca genotypes comprising gene combinations rarely or never recovered by conventional backcross breeding programs. Here we describe the optimisation of androgenesis in Lolium perenne x Festuca pratensis. The male fertility and freezing tolerance of the Festulolium microspore-derived progenies were analysed and these progenies were also analysed by using genomic in situ hybridisation (GISH). The object of this study is to initiate introgression breeding for the improvement of winter hardiness in Lolium /Festuca complex.
Citation
Yamada, T.; Guo, Y. D.; and Mizukami, Y., "Introgression Breeding for Improvement of Winter Hardiness in Lolium /Festuca Complex Using Androgenenesis" (2023). IGC Proceedings (1993-2023). 21.
https://uknowledge.uky.edu/igc/20/themeA/21
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Introgression Breeding for Improvement of Winter Hardiness in Lolium /Festuca Complex Using Androgenenesis
Intergeneric hybrids between closely related Lolium and Festuca species are used to broaden the gene pool and provide plant breeders with options to combine complementary traits to develop robust but high quality grass varieties. Androgenesis was found to be an effective procedure for selecting Lolium-Festuca genotypes comprising gene combinations rarely or never recovered by conventional backcross breeding programs. Here we describe the optimisation of androgenesis in Lolium perenne x Festuca pratensis. The male fertility and freezing tolerance of the Festulolium microspore-derived progenies were analysed and these progenies were also analysed by using genomic in situ hybridisation (GISH). The object of this study is to initiate introgression breeding for the improvement of winter hardiness in Lolium /Festuca complex.
