Submitted to: American Society of Horticulture Science Meeting
Publication Type: Abstract Only
Publication Acceptance Date: March 25, 2010
Publication Date: August 1, 2010
Citation: Bassett, C.L., Dardick, C.D., Gasic, K., Fisher, K. 2010. The peach dehydrin family is small relative to all other sequenced plant genomes. American Society of Horticulture Science Meeting. Technical Abstract: Recent advances in genomic sequencing technology have allowed the addition of a number of crops to the growing list of completely sequenced genomes. We have analyzed the peach genome for the dehydrin gene family and compared its members to the genomes of Arabidopsis, poplar, apple and rice. This comparison suggests that peach has about half the complement of dehydrin genes found in the other genomes surveyed. Whereas, Arabidopsis has ten genes encoding bona fide dehydrins, and poplar, apple and rice all have nine dehydrin homologs, peach has only five identified on the basis of signature sequences, i.e. the K domain, and conserved regions, e.g. the Y domain and the serine tract. Expression analysis of the peach dehydrin genes compared to those in rice and Arabidopsis indicates that some functions have been preserved between peach dehydrins and their homologs from other species, while other peach dehydrins have evolved to fill overlapping roles in response to abiotic stress exposure.