NOVELTY - An isolated polynucleotide comprising nucleotide sequence exhibiting 80% homology with respect to a defined sequence of 1422 base pairs (SEQ ID No. 1) given in the specification, or its complementary sequence and encoding polypeptide having isoprenoid wax ester synthase activity and comprising amino acid sequence exhibiting 80% homology with respect to a defined sequence of 473 amino acids (SEQ ID No. 2) given in the specification, is new.    USE - The polynucleotide is useful for the production of ester such as palmityl oleate, fatty acid methyl ester or fatty acid ethyl ester (all claimed) used as biodiesel.    ADVANTAGE - The polynucleotide enables producing biodiesel compounds from renewable resources with reduced or no production of contaminating triacylglycerol. The polynucleotide enables large-scale production of wax esters, preferably jojoba-like wax esters.    DETAILED DESCRIPTION - An isolated polynucleotide comprising (a) nucleotide sequence exhibiting at least 80% homology with respect to a defined sequence of 1422 base pairs (SEQ ID No. 1) given in the specification, or its complementary sequence and encoding a polypeptide having isoprenoid wax ester synthase activity and comprising an amino acid sequence exhibiting at least 80% homology with respect to a defined sequence of 473 amino acids (SEQ ID No. 2) given in the specification, or (b) a nucleotide sequence exhibiting at least 80% homology with respect to a defined sequence of 1677 base pairs (SEQ ID No. 3) given in the specification, or its complementary sequence and encoding a polypeptide having isoprenoid acyl CoA-synthetase activity and comprising an amino acid sequence exhibiting at least 80% homology with respect to a defined sequence of 558 amino acids (SEQ ID No. 4) given in the specification, is new. INDEPENDENT CLAIMS are included for the following:    (1) vector comprising above isolated polynucleotide;    (2) recombinant microorganism comprising an exogenous polynucleotide, where the exogenous polynucleotide is above isolated polynucleotide; and    (3) method for producing ester, involves providing recombinant microorganisms comprising above exogenous polynucleotide, and incubating the microorganisms under conditions suitable for the production of an ester.