Comprehensive analysis of trihelix genes and their expression under biotic and abiotic stresses in Populus trichocarpa.

ABSTRACT: Trihelix genes play important roles in plant growth and development and responses to biotic and abiotic stresses. Here, we identified 56 full-length trihelix genes in Populus trichocarpa and classified them into five groups. Most genes within a given group had similar gene structures and conserved motifs. The trihelix genes were unequally distributed across 19 different linkage groups. Fifteen paralogous pairs were identified, 14 of which have undergone segmental duplication events. Promoter cis-element analysis indicated that most trihelix genes contain stress- or phytohormone-related cis-elements. The expression profiles of the trihelix genes suggest that they are primarily expressed in leaves and roots. Quantitative real-time reverse transcription polymerase chain reaction analysis indi

SUBMITTER: Wang Z 

PROVIDER: S-EPMC5080644 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature