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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||Category:||AGRICULTURAL SCIENCES;Agricultural Biotechnology;Other Agricultural Sciences||Field:||Agricultural Sciences||Issue Date:||Feb-1992||Publisher:||Springer Berlin / Heidelberg||Source:||Theoretical and Applied Genetics, Volume 83, Issue 4, February 1992, Pages 467-475||Journal:||Theoretical and Applied Genetics||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)
|Appears in Collections:||Άρθρα/Articles|
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