Number of hybridizing repetitive elements versus BAC clone size and complexity. BACs (652) from a high-density array were scored for the presence or absence of seven common retroelements (Huck, Prem-2, Opie, Grande, Prem-1, Zeon-1, and ANLI). (A) Repetitive elements versus number of BAC fingerprint bands. The 652 BACs were subjected to a fingerprinting reaction and the number of bands were counted and plotted; the diagonal line indicates the best-fit line for the data, with R 2=0.6927 (P=0.000). (▴) BACs that are positive for the centromeric CentC repeat; (⋄) BACs that are positive for the knob 180 bp repeat. (B) Repetitive elements versus BAC clone size. A subset of the 652 BAC clones was sized by pulsed field gel analysis.
