ISHS Acta Horticulturae 738: International Symposium on Biotechnology of Temperate Fruit Crops and Tropical Species
IS IT POSSIBLE TO INDUCE COLD TOLERANCE IN PAPAYA THROUGH GENETIC TRANSFORMATION? |
| Authors: | S.A. Dhekney, R.E. Litz, D. Moraga, A. Yadav |
| Keywords: | Carica papaya, Vasconcella, cold tolerance, CBF |
| Abstract:
Carica papaya has no tolerance of cold, and brief exposure to temperatures at or below 0°C will kill the plant, although the related Vasconcella species have some degree of cold tolerance. Genomes of Carica papaya and Vasconcella were probed for the presence of cold-inducible sequences similar to those that occur in Arabidopsis using PCR. Cold-inducible sequences were observed only in Vasconcella. The C repeat binding factor (CBF) gene family induces the cold acclimation pathway in Arabidopsis. Transformation of papaya with CBF genes may not be a viable strategy for inducing cold tolerance in this species. | |
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