The invention relates to the technical field of
plant genetic engineering, in particular to a
gene of
leymus secalinus participating in adversity stress and application of the
gene. The
gene LsHSFA participating in adversity stress in
leymus secalinus is found for the first time, the
nucleotide sequence of the gene LsHSFA is shown as SEQ ID NO.1, and the
amino acid sequence of the coded
protein is shown as SEQ ID NO.2. Through
cloning and identification of the adversity stress participating gene of the
leymus secalinus,
expression analysis of the gene, genetic transformation of the gene and other means, the function of the gene is analyzed and verified, and the result shows that the adversity stress participating gene of the leymus secalinus has important influence on promotion of upper development of the leymus secalinus and improvement of
heat resistance,
salt resistance,
drought resistance and other
stress resistance; the stress-resistant gene of the leymus secalinus is utilized to positively regulate and control the
abiotic stress function, so that the leymus secalinus can cope with various stress adversities better, the leymus secalinus can adapt to more complex and harsh ecological environments, degenerated and desertified
grassland is improved, and potential application prospects are provided for improved variety breeding and excellent
population construction of the leymus secalinus in the future.