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AMYLASE POLYMORPHISM IN CITRUS AND SOME RELATED GENERA
Author(s) -
Esen Asim,
Scora Rainer W.
Publication year - 1977
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1977.tb15731.x
Subject(s) - biology , isozyme , taxon , cultivar , botany , rutaceae , polymorphism (computer science) , chemotaxonomy , citrus paradisi , amylase , genetics , allele , taxonomy (biology) , enzyme , biochemistry , gene
Amylase polymorphism was studied by electrophoresing crude protein extracts from mature leaves of Citrus and some related genera in polyacrylamide gel slabs. A total of 25 isoenzymes distributed within 2 distinct zones were resolved. Cultivars of C. medica were the least polymorphic with 5 isoenzymes, those of C. paradisi were the most polymorphic with 14 isoenzymes; the other taxa were between these two extremes. Cultivars within species, in general, had no qualitative differences in their isoenzymes profiles with the exception of C. aurantifolia, C. limon , and C. aurantium . Certain isoenzymes showed quantitative differences among taxa. Data provided evidence substantiating the presumed hybrid origin of some taxa. The potential of isoenzyme profiles in taxonomic and genetic studies was discussed.