אסיף מאגר המחקר החקלאי

The PH gene determines fruit acidity and contributes to the evolution of sweet melons

Year:

2014

Source of publication :

Authors :

Volume :

5

Co-Authors:

Cohen, S., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Itkin, M., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Yeselson, Y., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Tzuri, G., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Portnoy, V., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Harel-Baja, R., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Lev, S., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Saâ Ar, U., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Davidovitz-Rikanati, R., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Baranes, N., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Bar, E., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Wolf, D., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Petreikov, M., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Shen, S., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Ben-Dor, S., Department of Biological Services, Weizmann Institute, Rehovot 76100, Israel
Rogachev, I., Department of Plant Sciences, Weizmann Institute, Rehovot 76100, Israel
Aharoni, A., Department of Plant Sciences, Weizmann Institute, Rehovot 76100, Israel
Ast, T., Department of Biochemistry, Weizmann Institute, Rehovot 76100, Israel
Schuldiner, M., Department of Biochemistry, Weizmann Institute, Rehovot 76100, Israel
Belausov, E., Department of Fruit Tree Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Eshed, R., Department of Fruit Tree Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Ophir, R., Department of Fruit Tree Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Sherman, A., Department of Fruit Tree Research, ARO-Volcani Center, Bet Dagan 50250, Israel
Frei, B., Department of Pflanzenphysiologie, Technische Universitat Kaiserlautern, D-67663 Kaiserlautern, Germany
Neuhaus, H.E., Department of Pflanzenphysiologie, Technische Universitat Kaiserlautern, D-67663 Kaiserlautern, Germany
Xu, Y., Boyce Thompson Institute for Plant Science, Ithaca, NY 14853, United States
Fei, Z., Boyce Thompson Institute for Plant Science, Ithaca, NY 14853, United States
Giovannoni, J., Boyce Thompson Institute for Plant Science, Ithaca, NY 14853, United States
Lewinsohn, E., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Tadmor, Y., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Paris, H.S., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Katzir, N., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Burger, Y., Department of Vegetable Research, ARO-Newe ya'Ar Center, Ramat Yishay 30095, Israel
Schaffer, A.A., Department of Vegetable Research, ARO-Volcani Center, Bet Dagan 50250, Israel

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Abstract:

Taste has been the subject of human selection in the evolution of agricultural crops, and acidity is one of the three major components of fleshy fruit taste, together with sugars and volatile flavour compounds. We identify a family of plant-specific genes with a major effect on fruit acidity by map-based cloning of C. melo PH gene (CmPH) from melon, Cucumis melo taking advantage of the novel natural genetic variation for both high and low fruit acidity in this species. Functional silencing of orthologous PH genes in two distantly related plant families, cucumber and tomato, produced low-acid, bland tasting fruit, showing that PH genes control fruit acidity across plant families. A four amino-acid duplication in CmPH distinguishes between primitive acidic varieties and modern dessert melons. This fortuitous mutation served as a preadaptive antecedent to the development of sweet melon cultigens in Central Asia over 1,000 years ago. © 2014 Macmillan Publishers Limited. All rights reserved.

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