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Differential expression of the Hsf family in cassava under biotic and abiotic stresses
Ist Teil von
Genome, 2019-08, Vol.62 (8), p.563-569
Ort / Verlag
Canada
Erscheinungsjahr
2019
Quelle
MEDLINE
Beschreibungen/Notizen
Heat shock transcription factors (Hsfs) are important regulators of biotic and abiotic stress responses in plants. Currently, the Hsf gene family is not well understood in cassava, an important tropical crop. In the present study, 32
genes were identified from the cassava genome database, which were divided into three types based on functional domain and motif distribution analyses. Analysis of the differential expression of the genes belonging to the Hsf family in cassava was carried out based on published cassava transcriptome data from tissues/organs (leaf blade, leaf midvein, lateral buds, organized embryogenic structures, friable embryogenic callus, fibrous roots, storage roots, stem, petiole, shoot apical meristem, and root apical meristem) under abiotic stress (cold, drought) or biotic stress (mealybugs. cassava brown streak disease, cassava bacterial blight). The results show the expression diversity of cassava
genes in various tissues/organs. The transcript levels of
,
,
, and
were upregulated by abiotic and biotic stresses, such as cold, drought, cassava bacterial blight, cassava brown streak disease, and mealybugs, indicating their potential roles in mediating the response of cassava plants to environment stresses. Further interaction network and co-expression analyses suggests that
genes may interact with
family members to resist environmental stresses in cassava. These results provide valuable information for future studies of the functional characterization of the
gene family.