b-oxidation in seeds [45], AtLACS 1 and 2 in the synthesis of surface
lipids [46,47], and AtLACS 9 and AtLACS 1 in the synthesis of seed
TAGs [48]. The sequences of the LACS genes from Arabidopsis were
used to find consensus sequences that were used to design
oligonucleotides in order to clone sunflower LACSs expressed in
developing seeds by PCR techniques. In so doing, two LACS genes
were isolated from sunflower seed cDNA and were named HaLACS
1 and HaLACS 2 [49]. These genes clustered together with other
LACS from dicotyledonous plants in the phylogenetic tree shown
in Fig. 5, and were very similar to the AtLACS 9 and AtLACS 8
Arabidopsis LACS forms