ISSN:
1432-2242
Keywords:
Malus pumila Mill
;
Malus species
;
Esterase
;
Genes EST-1, EST-3, EST-4
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Three main zones of esterase activity (EST-I, EST-III, EST-IV) identified in leaf extracts of cultivated apple and Malus species were determined by the genes EST-1, EST-3 and EST-4, respectively. In addition to earlier reported alleles of EST-1 (a, b) three further bands c, d and f were identified in the EST-I zone of which c was found to be determined by an allele, c. Two alleles, a, b, and a null allele were found for both the genes EST-3 and EST-4. Differences in allelic frequency were observed between cultivars, rootstocks and Malus species. Allele EST-1a was rare amongst the rootstocks. The examination of Malus species and derivatives showed a geographical relationship. Allele EST-1c was confined to species of Asian origin, and EST-1d was confined to American species.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00226535
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