Nucleotide sequence alignment of sa MSTN-2 intron1 alleles. Alignment of nucleotide sequence of saMSTN-2 intron 1 alleles 1R, 2R and 4R from several individuals (as detailed in Materials and Methods). Repeat-1 and Repeat-2 are boxed and also indicated above the sequence. Identical sequences are highlighted in various colors. SNPs are indicated in red letters. Deletions are indicated by (-).GenBank Accession numbers of MSTN-2 variants 2R-17G, 2R-33, 4R-13RD, 1R-17G and 1R-3RD are GQ379805, GQ379806, HQ380027, GQ379807 and HQ380028, respectively.