Summary
Eight progenies from controlled crosses and one self-progeny of apple were analysed by electrophoresis for six leaf enzymes. Based on a polyploid origin for this species, three hypotheses were tested: monogenie disomic, bigenic disomic and tetrasomic inheritance. Three enzymes exhibited monogenic inheritance; two exhibited bigenic disomic inheritance specified by two homoeologous genes; and one exhibited bigenic disomic inheritance due to two linked genes. In all cases tetrasomic inheritance was disproved. These results agreed with previous data obtained from pollen isozyme analysis. They indicated a probable allopolyploid origin of the apple genome and the loss of duplicated gene expression in some cases.
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Communicated by F. Salamini
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Chevreau, E., Laurens, F. The pattern of inheritance in apple (Malus X domestica Borkh.): further results from leaf isozyme analysis. Theoret. Appl. Genetics 75, 90–95 (1987). https://doi.org/10.1007/BF00249147
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DOI: https://doi.org/10.1007/BF00249147