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Title: Genetics of esterase isoenzymes in Malus
Authors: Alston, Frank H.
Manganaris, George A. 
Keywords: Malus pumila Mill;Malus species;Esterase;Genes EST-1, EST-3, EST-4
Issue Date: 1992
Publisher: Springer Berlin / Heidelberg
Source: TAG Theoretical and Applied Genetics. Volume 83, Number 4 / February, 1992, pp. 467-475
Abstract: 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.
ISSN: 0040-5752 (Print)
1432-2242 (Online)
DOI: 10.1007/BF00226535
Rights: © Springer
Type: Article
Appears in Collections:Άρθρα/Articles

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