Abstract
Rapeseed (Brassica napus) is one of the most important oilseed crops worldwide. It is also a model system to study the process of microspore embryogenesis, due to the high response of some B. napus lines, and to the refinements of the protocols. This chapter presents a protocol for the induction of haploid and DH embryos in B. napus through isolated microspore culture in two specific backgrounds widely used in DH research, the high response DH4079 line and the low response DH12075 line. We also present methods to identify the best phenological window to identify buds with microspores/pollen at the right developmental stage to induce this process. Methods to determine microspore/pollen viability and to check the ploidy by flow cytometry are also described.
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Acknowledgments
This work was supported by grants AGL2017-88135-R and PID2020-115763RB-I00 to JMSS from Spanish MICINN jointly funded by FEDER. PC-M is a recipient of a contract of the “Juan de la Cierva” program of the Spanish Government and RM is a recipient of a contract of the CDIGENT program of the Valencian Government.
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Corral-Martínez, P., Camacho-Fernández, C., Mir, R., Seguí-Simarro, J.M. (2021). Doubled Haploid Production in High- and Low-Response Genotypes of Rapeseed (Brassica napus) Through Isolated Microspore Culture. In: Segui-Simarro, J.M. (eds) Doubled Haploid Technology. Methods in Molecular Biology, vol 2288. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1335-1_8
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DOI: https://doi.org/10.1007/978-1-0716-1335-1_8
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