Abstract
Polymorphisms for six enzyme systems (GPI, IDH, PDG, PGM, SKD, and TPI) were analysed in the top onion,Allium ×proliferum. Five multilocus isozyme genotypes were found. The banding patterns of top onions were compared with those ofA. ×wakegi, A. cepa, A. fistulosum, A. altaicum, and artificial hybrids between these three species. One top onion type and one artificial hybrid had identical banding patterns. Shallots andA. altaicum, the wild progenitor ofA. fistulosum, cannot be distinguished from the common onion andA. fistulosum, respectively; these species are also potential contributors to the top onion's gene pool.
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Maass, H.I. Genetic diversity in the top onion,Allium ×proliferum (Alliaceae), analysed by isozymes. Pl Syst Evol 208, 35–44 (1997). https://doi.org/10.1007/BF00986081
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DOI: https://doi.org/10.1007/BF00986081