Duplicated phosphoglucose isomerase genes in avocado |
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| Authors: | Goldring A Zamir D Degani Ch |
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| Institution: | (1) Department of Subtropical Horticulture, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel;(2) Department of Field and Vegetable Crops, Faculty of Agriculture, The Hebrew University of Jerusalem, P.O. Box 12, 76100 Rehovot, Israel |
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| Abstract: | Summary Avocado (Persea americana) cultivars were assayed for phosphoglucose isomerase (PGI) isozymes using starch gel electrophoresis. Three PGI genes were identified: one monomorphic locus, Pgi-I, coding for the plastid isozyme and two independently assorting loci, Pgi-2 and Pgi-3, coding for the cytosolic isozymes. The genetic analysis was based on comparisons of PGI zymograms from somatic and pollen tissue and on Mendelian analysis of progeny from selfed trees. The isozymic variability for PGI can be used for cultivar identification and for differentiating between hybrid and selfed progeny in avocado breeding. |
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| Keywords: | Gene duplication Phosphoglucose isomerase isozymes Persea americana Breeding |
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