Heat shock proteins (Hsps) are believed to play important roles in
developmental processes and in response to heat stress. Heat shock
transcription factors (Hsfs) are important Hsp regulators, but are poorly
understood, especially in wheat. Hence, a comprehensive bioinformatics
analysis was conducted by a research team led by Aimin Zhang of the Chinese
Academy of Sciences in wheat ancestors Triticum urartu and Aegilops
tauschii.

Thirteen Hsf proteins were identified in both T. urartu and A. tauschii.
Expression analyses of these genes in response to heat stress were
conducted. Hsf genes Tuhsf03, Tuhsf05, Tuhsf06, Tuhsf10 had significant
increases in transcript levels in different tissues of T. urartu and were
induced by heat stress. These results provide important information for
studies of Hsfs in wheat.

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