Given the sizes of the three genomes in wheat (A, B, and D) and a limited number of chiasmata formed in meiosis, recombination by crossing-over is a very rare event. It is also restricted to very similar homologues; the pairing homoeologous (Ph) system of wheat prevents differentiated chromosomes from pairing and crossing-over. This chapter presents an overview and describes several systems by which the frequency or density of crossing-over can be increased, both in homologues and homoeologues. It also presents the standard system of E.R. Sears for engineering alien chromosome transfers into wheat.
CITATION STYLE
Lukaszewski, A. J. (2016). Manipulation of homologous and homoeologous chromosome recombination in wheat. Methods in Molecular Biology, 1429, 77–89. https://doi.org/10.1007/978-1-4939-3622-9_7
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