Table 2. Intra-interval interference.

Type	Adjacent Intervals	N° of Tetradsc	IRd	p (IR  =  IR wt)e	p (IR = 1)f
Wt	I5a/I5ba	3,118	0.47	—	<10−8
	I5a/I5bb	1,899	0.52	—	<10−8
	I5d/I5c	8,947	0.36	—	<10−8
	I3c/I3b	10,245	0.28	—	<10−8
axr1	I5a/I5ba	1,263	1.63	<10-4	4×10−3
	I5a/I5bb	1,107	1.25	<10-4	0.09
	I5d/I5c	2,274	1.26	<10-4	0.11
	I3c/I3b	1,499	1.35	<10-4	0.10

^{a, b}Correspond to the data obtained for two independent experiments for intervals I5a and I5b.

^cOnly four-spore viable tetrads were considered. They correspond to 97% of the tetrads (n = 3,756) in wild type and 10% (n = 5,973) for axr1.

^dThe IR compares the genetic size of the first interval when a CO occurs in the adjacent interval to the genetic size of the same interval when no CO occurs in the adjacent interval (Table S4A).

^eThe p values indicate significant differences between axr1 IR and wild-type IR for a given pair of intervals.

^fThe p values indicate significant differences between IR and 1.