The titan2 mutants of Arabidopsis
Wild-type // titan2 mutant
Embryo within the seedcoat, cleared with Hoyer's solution (click to
view larger image)
As shown by the pictures above, the titan2 mutants of arabidopsis
have only 1-2 cells in the embryo proper, and 2-3 cells in the suspensor.
This is a recessive mutation of a single gene located at the top of the chromosome 1.
The mutant endopserm contains 5 to 16 highly enlarged nuclei, which
are 20 to 500 times bigger than that in the wildtype.
(Liu and Meinke, 1998 unpublished data).
