TABLE 2

Summary of mutant phenotypesa

LocusJuvenile rosette leaf fusionbAdult rosette leaf fusionbFloral fusionbOvule abnormalitycSpontaneously fertiledFemale fertileeMale fertileeWild-type pollen hydrationfcer pollen hydrationf
wildtype++++
airhead+/−+++++
bulkhead+++
conehead+++/−+++
deadhead++++/−+/−+/−+/−+
eceriferum10+++
fiddlehead++++++
hothead++/−++++
pothead+/−++++
thunderhead++++/−++/−
  • a The representative alleles scored for each locus were: ahd-1, bud-1, cod-1, ded-1, ded-2, ded-4, cer10-1, fdh-3, fdh-5, fdh-6, hth-4, hth-8, hth-10, phd-1, thd-1 and thd-2.

  • b For each of the fusion phenotypes: +, fusion events strong enough to seriously distort the shape of the organ; +/−, fusion events which do not distort the shape of the organ; −, no fusion.

  • c Each representative allele was scored for the presence or absence of morphologically abnormal ovules (+ or −). +/−, some alleles showed an ovule defect while others did not.

  • d Spontaneously fertile refers to the ability of the flowers to set seed without human intervention. ++, wild-type levels of seed set; +, seed set less than 50% of wild-type levels; −, no seed set (less than 1 seed/flower); +/−, variation between alleles tested.

  • e Male and female fertility were scored relative to wild-type in reciprocal crosses. + , at least 50% of wild-type fertility; −, less than 50% of wild-type fertility; +/−, variation between the alleles tested.

  • f Samples were scored as positive for hydration if 50% or more of the applied pollen grains became spherical in shape within 1 hr. +/− , differing behaviour between the alleles tested.