Comparative Stem Transcriptome Analysis Reveals Pathways Associated with Drought Tolerance in Maritime Pine Grafts oleh Lorenzo Federico Manjarrez, Nuria de María, María Dolores Vélez, José Antonio Cabezas, José Antonio Mancha, Paula Ramos, Alberto Pizarro, Endika Blanco-Urdillo, Miriam López-Hinojosa, Irene Cobo-Simón, María Ángeles Guevara, María Carmen Díaz-Sala, María Teresa Cervera