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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 £10.00

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).

Ontology annotation using Plant Ontology (PO) and PATO

Select the plant ontology term to see other Arabidopsis lines associated with this phenotype.

Entity Value
leaf RoundValue (PATO:0000411)
hypocotyl ShortHeightValue (PATO:0000569)
apical hook OpenValue (PATO:0000610)


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