General information

Mutant name spy-2
Mutant/Transgenic plant mutant
Ecotype Col-0
Mutagenesis type EMS
Dominant/Recessive/Semi-dominant recessive
PMID 1803720 8400871
CommentNo comment

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT3G11540 SPINDLY gibberellin Single nucleotide substitution at splice acceptor site between intron 7 and exon 8 Encodes a N-acetyl glucosamine transferase that may glycosylate other molecules involved in GA signaling. SPY may play a central role in the regulation of GA/cytokinin cross talk during plant development.

Phenotype information

Organ AttributeNo hormone
Cotyledon/Leaf Cotyledon numberabnormal
Leaf colorlight green leaf
Trichome branchingmore than three; produced predominantly four branch trichomes
Hypocotyl/Stem Hypocotyl lengthlong hypocotyls as a result of increase in the number of nodes in the inflorescence,
Internode lengthalmost normal
Flower Carpelmore carpels
Fertilityreduced fertility, completely sterile on the primary inflorescence but a little seeds from axillary inflorescence in LD; SD conditions were able to increase the fertility
Flowering time under long dayearly flowering
Flowering time under short dayearly flowering
Silique/Seed Seed yieldfewer seeds, many are abnormal
otheraltered inflorescence phyllotaxy, flowers initiated in a disordered fashion and sometimes with multiple flowers appearing to initiate from the same node.