GENETIC DIVERSITY AND DIFFERENTIATION OF HEAT SHOCK TRANSCRIPTION FACTORS AMONG SPECIES
Keywords:
Hsf1, Hsf2, Hsf4, diversity and differentiation, positive selectionAbstract
The genetic diversity and differentiation of Hsf1, Hsf2 and Hsf4 among different species were analyzed based on their
nucleotide and amino acid sequences. The Hsf4 had more polymorphic sites and total number of mutations in unit length,
single polymorphic sites, nucleotide diversity and haplotype diversity than Hsf1and Hsf2. There were significant differences
of amino acid diversity among three peptides. The HSF4 had more amino acid diversity than HSF1 and HSF2. The genetic
differentiation among three genes was significant and the Hsf4 gene was more obvious than Hsf1 and Hsf2 gene. The positive
selection affected on Hsf1, while the purifying selection on Hsf2 and Hsf4. The Hsf2 had different evolution relationship for
Sus scrofa, Bos taurus and Cricetulus griseus.
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