FIELD: plant genetic engineering. SUBSTANCE: constitutive promoter of heat shock gene hsp-80 in Brassica operates an expression of the target heterological gene at the high initial level under normal temperatures of 20-25 C and provides the enhanced expression at heat stress 35-40 C. Mutants of promoter containing deletions retain activity and/or show the enhanced activity. EFFECT: enhanced expression of DNA sequence. 2 dwg, 1 tbl, 6 ex
Authors
Dates
1999-04-10—Published
1993-01-06—Filed