Table I. Segregation of heterozygous mutants in putative pollen EXO70 isoforms

+/+, Wild-type plants; +/−, heterozygous mutants; −/−, homozygous mutants; OE, overexpressor line.

Allele+/++/−−/−nχ2PLine
Expected25.0%50.0%25.0%
exo70A2-OE26.7%51.7%21.7%1200.7330.693GABI_824D06
exo70C1-1a24.0%50.0%26.0%1500.1200.942GABI_100A02
exo70C1-224.6%49.1%26.3%1180.1020.950GABI_334D05
exo70C2-1a39.8%50.9%9.3%15930.037<0.001RATM16-1469-1
exo70C2-2b24.5%48.1%27.4%1060.3210.853SALK_045767
exo70F121.9%53.3%24.8%1050.6380.727SALK_036927
exo70H323.0%56.0%21.0%1001.5200.468GABI_651C10.03
exo70H523.2%48.2%28.6%1120.7860.675SALK_007810
exo70H626.0%44.8%29.2%1541.9870.370SALK_016535
  • a These alleles were used for the next analyses.  bT-DNA insertion in the promoter; transcripts were present at the wild-type level.