Table 2.

Complementation groups and defective phenotypes of the alp mutants

Loci	Alleles	Morphologya	Microtubules	Genes/product
alp 1	1315, 1356, 1584	Bent/branched	No	Cofactor Db
2	996, 1212, 1377	Bent/branched	No	atb2+/α2-tubulin
3	149, 601	Curved/cut
4	225, 1891	Bent/cut	Few
5	1134	Bent
6	719	Bent/cut
7	738	Bent/cut
8	1146c	Bent/branched		tea1+
9	1437	Bent
10	103	Curved
11	924	Bent/branched	No	Cofactor Bd
12	1828	Bent/branched	No	nda3+/β-tubulin
13	1837	Bent/cut
14	1270	Bent/branched	Few
15	1218	Bent/cut

^aMutants that showed >1% of cells with branched morphology or 10% of “cut” at 36°C for 8 h are indicated as “branched” or “cut” (Hirano et al., 1986), respectively. 

^bHirata et al., 1998. 

^cThe original isolate (1146) contained two mutations; one in tea1 (Mata and Nurse, 1997), which leads to branched morphology at 36°C, and the other in an unknown locus, which causes temperature-sensitive growth. 

^dRadcliffe and Toda, unpublished observations.