Recovered during SIRT gene targeting, may belong to a class III gene targeting event in which both copies of the tea gene are disrupted by small rearrangements during the homologous recombination process.
tea2-1 homozygotes as well as tea2-1/Df(2R)BSC298 or tea1755/tea2-1 mutants are larval lethal and their cells display high frequency of end-to-end chromosomal fusions during mitosis.