Abstract
Haploids obtained from interspecific crosses between H. bulbosum (2n=14) and H. vulgare (2n=14) resembled the male parent (H. vulgare) with regard to vegetative and spike characteristics. The somatic chromosomes of these plants resembled those of the haploid complement (x=7) of the male parent H. vulgare. Thus, the haploids produced were considered androgenetic possessing the cytoplasm of H. bulbosum and the nucleus of H. vulgare. Detailed meiotic studies from pachytene to metaphase I in these haploids revealed non-homologous chromosome pairing, identical to that of haploids produced in the cytoplasm of H. vulgare. It was concluded that the influence, if any, of bulbosum cytoplasm on meiotic behavior of vulgare chromosomes is not different from that of vulgare cytoplasm.
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