o SNP_60K_build10.2_final.txt
   - Pig 60K SNP data set
   - Mapping info by Martien Groenen et al [Martien.groenenwur.nl]

 o Affy_2005_blast.gff
   - 23935 sequences
   - 19351 sequences mapped

 o Affy_2010_blast.gff 
   - 40139 sequences (47769 SNOWBALL elements + 2370 miRNA seqs)
   - 34809 sequences mapped

 o pig_Oligo2build10.2.gff
   - 18224 consensus sequences from http://www.PigOligoArray.ORG/
   - 16653 sequences mapped

   Blast mapping criteria:
   Cut-off e-value: 1e-3; Identity > 80%; Alignment length > 30bp
   __Zhiliang