{'fraction_non_alphanumeric': 0.04252873563218391, 'fraction_numerical': 0.010344827586206896, 'mean_word_length': 5.048611111111111, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Use of Isozyme Techniques to Identify Peach x ‘Nonpareil’ Almond Hybrids


Two isozyme systems, phosphoglucomutase (PGM) and 6-phosphogluconate dehydrogenase (PGD), were identified that permit the early verification of peach x almond hybrids as opposed to plants resulting from accidental self-pollination. Nondestructive samples for analysis can be taken from cotyledons or primary leaves. Isozymes of PGM-2, PGD-1, and PGD-2 were found to be monomorphic in the peach [Prunus persica (L.) Batsch] cultivars studied. P. amygdalus Batsch ‘Nonpareil’ was found to be heterozygous at the PGM-2 banding region, bearing the peach allele and a slower migrating allele. This locus allows verification of 50% of the hybrids. ‘Nonpareil’ was homozygous for alleles contrasting to peach at the PGD-1 and PGD-2 banding regions, allowing the unequivocal verification of all hybrids.