Abstract
AbstractA hybrid between an induced tetraploid of Hordeum chilense (2n = 28 = HchHchHchHch) and Triticum aestivum var. ‘Chinese Spring’ (2n = 42 = AABBDD) has been produced to test gene effects of this wild barley on homoeologous pairing in wheat. Cytological investigations in metaphase I have shown that the hybrid, which is perennial like H. chilense but morphologically more similar to the wheat parent, possesses the expected genome composition HchHch ABD and a stable euploid chromosome number of 2n = 35. Pairing among the homologous H. chilense chromosomes was almost complete. The level of non‐homologous chromosome association proved to be lower than the range of pairing known from euhaploids of ‘Chinese Spring’.
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