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The European Arabidopsis Stock Centre

NASC Stock Detail Page

NASC ID: N3911

Name: gpa1-2

ABRC stock number: CS3911

Donation Date: 2002-05-03

Donated by:  University of North Carolina, Chapel Hill Alan M. Jones

Stock type: individual line

Material type: seed

Status Price (£)
Available £11.00

Germplasm Info

Seed type: Promoter reporter line

Mutagen: T-DNA Insertion

Background: Ws

Growth requirement: none

Associated Polymorphisms

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

Gene: Allele: Locus: AGI code:
  • gpa1-2
  • GPA1




Reduced cell division throughout development; increase in cell expansion compensates the reduction in cell division; light-grown plants exhibit a rotundifolia-like leaf shape (round leaves); dark-grown seedlings have short hypocotyls (because of a reduced number of elongated cells) and open hooks typical of light-irradiated seedlings; roots and cotyledons have the appearance of dark-grown wild type; reduced brassinolide responsiveness; stomatal opening is insensitive to inhibition by ABA, and the rate of water loss is greater than from wild type; encodes an alpha subunit of a heterotrimeric GTP-binding protein (G protein).


Ullah, H. et al. 2001. Modulation of cell proliferation by heterotrimeric G protein in Arabidopsis. Science 292(5524):2066-9.PubMed ID: 11408654.