Transcriptome profiling of fully open flowers of almond in response to frost stress

Spring frost is a major limiting abiotic stress for the cultivation of almonds [Prunus dulcis (Mill.)] in Mediterranean areas or the Middle East. Spring frost, in particular, damages almond fully open flowers, resulting to significant reduction in yield. Little is known about the genetic factors expressed after frost stress in Prunus spp. as well as in almond fully open flowers. Here we provide the molecular signature of pistils of fully open flowers from a frost-tolerant almond genotype.