8Montgomery, G.W., et al., The ovine Booroola fecundity gene (FecB) is linked to markers from a region of. human chromosome 4q[J]. Nat Genet, 1993,4(4): 410-4.
9Montgomery, G.W., et al., The Booroola fecundity (FecB) gene maps to sheep chromosome 6[J]. Genomics, 1994,22(1): 148-53.