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  1. Jan 2021
    1. We introduce into the S. cerevisiae genome the three crt genes from Erwinia herbicola required for yeast to synthesize lycopene and carry out the recombination process to produce a population of cells with permutations of tetO variants regulating the three genes. We identify 0.7% of this population as making detectable lycopene, of which the vast majority have undergone recombination at all three crt genes. We estimate a rate of ∼20% recombination per targeted site, much higher than that obtained in other studies

      The process of integrating more optimized vector has enabled a larger net production of lycopene synthesis in the S. cerevisiae yeast organisms.

    2. S. cerevisiae is amenable to genome engineering because of its capacity for efficient homologous recombination, although its transformation efficiency is much lower than that of E. coli.

      This is a very logical explanation provided for why S. cerevisiae is a strong candidate for the organism for the experiment because of its efficient homologous recombination, however since it notes E. coli has a superior transformation efficiency, why isn't that used instead?