c("donor: 1", "fraction: 40-100 nucleotide fraction")
c("donor: 2", "fraction: 40-100 nucleotide fraction")
c("donor: 3", "fraction: 40-100 nucleotide fraction")
c("donor: 4", "fraction: 40-100 nucleotide fraction")
c("donor: 5", "fraction: 40-100 nucleotide fraction")
c("donor: 6", "fraction: 40-100 nucleotide fraction")
c("donor: 1", "fraction: 20-40 nucleotide fraction")
c("donor: 2", "fraction: 20-40 nucleotide fraction")
c("donor: 3", "fraction: 20-40 nucleotide fraction")
c("donor: 4", "fraction: 20-40 nucleotide fraction")
c("donor: 5", "fraction: 20-40 nucleotide fraction")
c("donor: 6", "fraction: 20-40 nucleotide fraction")