Table 2.

Characteristics of Parents and F1 Hybrids

Line or Plant
CharacterA. thaliana LC612Care-1Sue-249-2A49-2B605A605B
n (no. of gamete chromosomes)5161313a13  1313
Leaf length (cm)3.8 ± 0.3  9.7 ± 0.8  8.8 ± 1NDb  8.8 ± 0.6  11 ± 0.8  9.5 ± 1.4
Leaf serrationc+++++ to –d+++++
Weeks to bolting3  5  620  5  6  5
Secondary rosetteseNoYesYesNoYesYesYes
Petal length (mm)3.7 ± 0.047.+ ± 0.04    6 ± 0.05  3 ± 0.03  5.2 ± 0.04  5.8 ± 0.05  5.2 ± 0.04
Corolla diameter (mm)3.3 ± 0.039.7 ± 0.076.1 ± 0.07ND6.2 ± 0.037.2 ± 0.03    6 ± 0.03
Anther orientationfInOutInInOutOutOut
Self-compatibilityYesNoYesYesYesYesYes
PollengND/ND/92100/94/9886/88/81ND29/17/1376/24/6ND
Seed setExcellentVery goodExcellentPoorPoorPoorPoor
  • a Chromosomes counts were performed in F2 progeny.

  • b ND, not determined.

  • c (–), none; (+), moderate; (++), strong.

  • d Due to “reversion” to an A. thaliana–like phenotype in the inflorescence (see text).

  • e Rosettes formed in cauline leaf axils.

  • f Anthers dehisced toward (in) or away from (out) stigma.

  • g Percentage of viable pollen at three stages (Regan and Moffatt, 1990): after meiosis (stage 10), during maturation (stage 11), and at dehiscence (stage 13).