Question about an Arabidopsis T-DNA insertion

[highyms]

Hi, colleagues,
We bought an an Arabidopsis T-DNA insertion line from SALK and found the seeds are all heterozygote of our interesting gene.
However, we find that the offsprings of this Arabidopsis T-DNA heterozygote line are all heterozygotes, no Wild-type and homozygotes?

Why?

Thnaks a lot,

Highyms

[JackBean]

what about lethality?

[Dong]

Have you check the flowers ?
the fertility