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NASC Stock Detail Page

NASC ID: N6994

Name: haiku 1

ABRC stock number: CS6994

Description: recessive mutant

Donation Date: 2007-01-19

Donated by:  Ecole Normale Supérieure de Lyon Christian Dumas
Ecole Normale Supérieure de Lyon Fred Berger

Donor Number: iku1-1

Part of : Homozygous lines

Stock type: individual line

Material type: seed

Status Price (£)
Available £7.50

Germplasm Info

Seed type: Mutant

Mutagen: ethylmethane sulfonate

Background: Ler-0 (N20)

Segregation status: homozygous

Pedigree: Backcrossed 5 times to wild type.

Associated Polymorphisms

When available, select a locus to display it at the AIP or view the EMBL record at the EBI.

Allele: Locus: AGI code:
  • iku1-1
  • iku1


Reduced seed size; small seeds result from coordinated reduction of endosperm size, embryo proliferation, and cell elongation of the maternally derived integument. Premature arrest of endosperm growth triggers precocious onset of endosperm cellularization during the syncytial developmental stage; reduced proliferation of the cellularized endosperm, reduced embryo proliferation after the early torpedo stage and reduced cell elongation of the maternally derived seed integument. Homozygous seeds develop into plants indistinguishable from wild type.


Garcia, D. et al. 2003. Arabidopsis haiku mutants reveal new controls of seed size by endosperm. Plant Physiology 131(4):1661-70.PubMed ID: 12692325.