Table 1. Splice donor and acceptor sites found in Cabb B-JI and Cabb-S strains by RT-PCR.

85 and 44 clones from two independent experiments were sequenced for Cabb B-JI and Cabb-S strains, respectively. Sites Da to Dc and Aa to Af were named according to their order of discovery in Cabb B-JI strain.

	Cabb B-JI	Cabb-S
Splice donor sites (position)	D1 (872); D2 (887); D4 (7915); Da (653); Db (7890); Dc (658)	D1 (872); D2 (887); D3 (1247); D4 (7909); Da (653); Db (7884)
Splice acceptor sites (position)	A (1509); Aa (584); Ab (577); Ac (565); Ad (652); Ae (830); Af (587)	A (1508); Ab (577); Ac (565); Ad (652); Ag (864); Ah (1515)