9ROBERT D C ,LVAN B ,DAVID J C ,et al. Identification and characterization of a Drosophila ortholog of W. R. N exonuclease that is required to maintain genome integrity [J] . Agingcell,2008,7(3) :418 -425.
10RUBIN G M ,YANDELL M D ,WORTMAN J R,et al. Compara vegenomics of the eukaryotes[J]. Sci ,2000,287(5461):2204 -2215.
