Intron Loss

Tracking intron loss in ABCB1 across the grass phylogeny.

Parallel loss of introns in the ABCB1 gene in angiosperms

**Background** The presence of non-coding introns is a characteristic feature of most eukaryotic genes. While the size of the introns, number of introns per gene and the number of intron-containing genes can vary greatly between sequenced eukaryotic …