Relations between heterosis and enzymatic polymorphism in populations of cultivated sunflowers (Helianthus annuus L.) |
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| Authors: | M Tersac P Blanchard D Brunel P Vincourt |
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| Institution: | (1) Station de Génétique et Amélioration des Plantes, Institut National de la Recherche Agronomique, 34130 Mauguio, France;(2) Le Sextant rue Perruche, SARL LOCUS, 17000 La Rochelle, France;(3) Rustica Semences Domaine de Sandreau Mondonville, 31700 Blagnac, France |
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| Abstract: | Nine polymorphic isoenzymatic systems were studied in 39 cultivated sunflower populations originating from ten countries. Analysis of combining abilities with four tester lines was also performed on these populations for seed yield, seed moisture and seed oil content. The MDH, PGI, PGD and GOT systems appeared to provide the best discrimination of specific combining ability effects with the four testers. The MDH and GOT systems provided a between-population structure that was consistent with the country of origin.Abbreviations MDH
Malate dehydrogenase
- PGD
phosphogluconate dehydrogenase
- PGI
phosphoglucoisomerase
- PGM
phosphoglucomutase
- ACO
aconitase hydratase
- ADH2
alcohol dehydrogenase
- GOT
glutamate oxaloacetate transaminase
- LAP
leucine amino peptidase
- EST
esterases |
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| Keywords: | Enzymatic systems Heterosis Markers Sunflower |
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