Genome-wide identification and functional evolutionary characterization of the HSF gene family in Amorphophallus konjac

doi:10.14088/j.cnki.issn0439-8114.2026.02.032

Abstract

Abstract: To elucidate the molecular response mechanism of Amorphophallus konjac under high-temperature stress, based on the whole-genome data of Amorphophallus konjac, the heat shock transcription factor (HSF) gene family members were systematically identified using bioinformatics methods, and their physicochemical properties, evolutionary relationships, conserved motifs, and protein interaction networks were analyzed. The results showed that a total of 28 AkHSF gene family members were identified in the Amorphophallus konjac genome, which were unevenly distributed on 8 chromosomes. By constructing a phylogenetic tree, the HSF members of Amorphophallus konjac and Arabidopsis thaliana were co-classified into five subgroups, revealing the evolutionary conservation of the gene family. The analysis of conserved motifs and gene structures indicated that members within the same subgroup shared similar motif compositions, suggesting functional similarity, while differences existed among different subgroups, implying functional divergence. Protein interaction prediction revealed six interaction relationships among seven AkHSF members. The AkHSF gene family members exhibited both conservation and adaptive evolution in their functions related to heat stress response.

Key words: Amorphophallus konjac, HSF gene family, whole-genome, bioinformatics, identification, functional evolution, characterization

CLC Number:

S632.3

CAI Yang-guang, LI Jian-kang, DUAN Long-fei, QIN Jian-feng, WU Jun-qi. Genome-wide identification and functional evolutionary characterization of the HSF gene family in Amorphophallus konjac[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(2): 215-222.

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