Correlation of isoenzyme polymorphism and Bayoud-disease resistance in date palm cultivars and progeny

Seedlings of date palm (Phoenix dactylifera L.), obtained from seven cultivars crossed with two males, were analyzed by polyacrylamide gel electrophoresis for esterase (EST), glutamate oxaloacetate transaminase (GOT), endopeptidase (ENP) and alcohol dehydrogenase (ADH) polymorphisms. Seedlings of F...

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Bibliographic Details
Published in:Euphytica 1993-01, Vol.65 (1), p.23-32
Main Authors: Bendiab, K. (Cadi Ayyad Univ., Marrakech (Morocco). Lab. de Biochimie et Biologie Moleculaire des Plantes), Baaziz, M, Brakez, Z, Sedra, M.H
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
ALCOHOL DEHYDROGENASE
ALCOHOL DESHIDROGENASA
ALCOOL DESHYDROGENASE
AMELIORATION DES PLANTES
Biological and medical sciences
DESCENDANCE
DISEASE RESISTANCE
ELECTROFORESIS
ELECTROPHORESE
ELECTROPHORESIS
ENFERMEDADES FUNGOSAS
ESTERASAS
ESTERASE
ESTERASES
FITOMEJORAMIENTO
Fundamental and applied biological sciences. Psychology
FUNGAL DISEASES
FUSARIUM OXYSPORUM
GENETIC INHERITANCE
Genetics and breeding of economic plants
GENOTIPOS
GENOTYPE
GENOTYPES
HEREDITE
HERENCIA GENETICA
ISOENZIMAS
ISOENZYME
ISOENZYMES
MALADIE FONGIQUE
Pest resistance
PHOENIX DACTYLIFERA
PLANT BREEDING
Plant pathogens
PLANTULAS
PLANTULE
PROGENIE
PROGENY
RESISTANCE AUX MALADIES
RESISTENCIA A LA ENFERMEDAD
SEEDLINGS
VARIEDADES
Varietal selection. Specialized plant breeding, plant breeding aims
VARIETE
VARIETIES
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Summary:Seedlings of date palm (Phoenix dactylifera L.), obtained from seven cultivars crossed with two males, were analyzed by polyacrylamide gel electrophoresis for esterase (EST), glutamate oxaloacetate transaminase (GOT), endopeptidase (ENP) and alcohol dehydrogenase (ADH) polymorphisms. Seedlings of F sub(1) populations derived from Bayoud (Fusarium)-resistant and low fruit quality cultivars were characterized by a high electrophoretic polymorphism, when compared with progenies of Bayoud-susceptible and high fruit quality cultivars. In almost all cases, the most frequent electrophoretic phenotypes scored for each enzyme in different F sub(1) populations, were similar to those of the corresponding parent cultivars. Heterozygous phenotypes have been found for, at least, 3 loci; Got-2, Est-1 and Enp, indicating that such loci could be used to screen for hybrid seedlings. The estimation of this index and the search for genetic linkage with segregating allozymes, may be biochemical criteria useful as an aid in distinguishing date palm seedling populations derived from Bayoud-resistant cultivars and suitable for breeding programs.
ISSN:0014-2336
1573-5060
DOI:10.1007/BF00022196