Author/Authors :
Davis، نويسنده , , G.H. and Balakrishnan، نويسنده , , L. and Ross، نويسنده , , I.K. and Wilson، نويسنده , , T. and Galloway، نويسنده , , S.M. and Lumsden، نويسنده , , B.M. and Hanrahan، نويسنده , , J.P. and Mullen، نويسنده , , M. and Mao، نويسنده , , X.Z. and Wang، نويسنده , , G.L. and Zhao، نويسنده , , Z.S. and Zeng، نويسنده , , Y.Q. and Robinson، نويسنده , , J.J. and Mavrogenis، نويسنده , , A.P. and Papachristoforou، نويسنده , , C. and Peter، نويسنده , , C. and Baumung، نويسنده , , R. and Cardyn، نويسنده , , P. and Boujenane، نويسنده , , I. and Cockett، نويسنده , , N.E. and Eythorsdottir، نويسنده , , E. and Arranz، نويسنده , , J.J. and Notter، نويسنده , , D.R.، نويسنده ,
Abstract :
Twenty-one of the worldʹs prolific sheep breeds and strains were tested for the presence of the FecB mutation of BMPR1B and the FecXI mutation of BMP15. The breeds studied were Romanov (2 strains), Finn (2 strains), East Friesian, Teeswater, Blueface Leicester, Hu, Han, D’Man, Chios, Mountain Sheep (three breeds), German Whiteheaded Mutton, Lleyn, Loa, Galician, Barbados Blackbelly (pure and crossbred) and St. Croix. The FecB mutation was found in two breeds, Hu and Han from China, but not in any of the other breeds. The 12 Hu sheep sampled were all homozygous carriers of FecB (FecBB/FecBB) whereas the sample of 12 Han sheep included all three genotypes (FecBB/FecBB, FecBB/FecB+, FecB+/FecB+) at frequencies of 0.33, 0.58 and 0.08, respectively. There was no evidence of FecXI in any of the breeds sampled.
Keywords :
Major gene , Reproduction , DNA , Sheep , breeds
