Abstract

Brassica is a very important vegetable group worldwide and different stresses are a major concern for these crops. Enhancement of resistance against biotic and abiotic stresses by exploiting stress resistance related genes offers the most efficient approach to address this concern. In this study, a stress resistance related gene was identified from the full-length cDNA library of Brassica rapa cv. Osome, which was determined to be Brassica longevity assurance protein ( BrLAP ) after sequence analysis. A comparison study of this gene showed a high degree of homology with other stress resistance related longevity assurance genes and was shown to be expressed in all organs during all of the developmental growth stages. In addition, this gene significantly responded after cold, drought and ABA stress treatments in Chinese cabbage. All these data revealed that this gene may be involved in plant resistance against stresses. Keywords: Brassica rapa , longevity assurance gene, gene expression, biotic and abiotic stress

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