Gene Details:

• Gene ID: AT3G19700
• Gene Symbol: IKU2
• Gene Name: HAIKU2
• Description: Leucine-rich repeat protein kinase family protein;(source:Araport11)
• TAIR Accession: locus:2091206
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT3G19700.1

Plant Ontology Annotations:

• PO:0009001  — fruit — frucht (exact, German), fruto (exact, Spanish), 果実 (exact, Japanese), coenocarp (narrow), syncarp (narrow), aggregate fruit (broad), compound fruit (broad), dehiscent fruit (broad), diaspore (broad), indehiscent fruit (broad), multiple fruit (broad), propagule (broad)

Gene Ontology:

• GO:0009507  — located in — chloroplast
• GO:0009960  — acts upstream of or within — endosperm development
• GO:0004674  — enables — protein serine/threonine kinase activity
• GO:0005886  — is active in — plasma membrane
• GO:0005515  — enables — protein binding
• GO:0006468  — involved in — protein phosphorylation

Germplasm Phenotype:

• CS860330  — Reduced seed size.
• SALK_013627  — The methionine-derived glucosinolate content was reduced to 53% in the leaves. Meanwhile, the level of free methionine was increased for about five-fold. Extremely high level of S-methylmethione, the main transport form of methionine, was found in the seeds.
• SALK_073260  — Small seed phenotype, similar to iku2-3

Function-related keywords:

• fruit

Literature:

• Arabidopsis haiku mutants reveal new controls of seed size by endosperm.   DOI:  10.1104/pp.102.018762 ;  PMID:  12692325
• Using mutant alleles to determine the structure and function of leucine-rich repeat receptor-like kinases.   DOI:  10.1016/s1369-5266(03)00089-x ;  PMID:  12972053
• Maternal control of integument cell elongation and zygotic control of endosperm growth are coordinated to determine seed size in Arabidopsis.   DOI:  10.1105/tpc.104.027136 ;  PMID:  15598800
• MINISEED3 (MINI3), a WRKY family gene, and HAIKU2 (IKU2), a leucine-rich repeat (LRR) KINASE gene, are regulators of seed size in Arabidopsis.   DOI:  10.1073/pnas.0508418102 ;  PMID:  16293693
• Natural variation in the degree of autonomous endosperm formation reveals independence and constraints of embryo growth during seed development in Arabidopsis thaliana.   DOI:  10.1534/genetics.107.084889 ;  PMID:  18505878
• SHORT HYPOCOTYL UNDER BLUE1 associates with MINISEED3 and HAIKU2 promoters in vivo to regulate Arabidopsis seed development.   DOI:  10.1105/tpc.108.064972 ;  PMID:  19141706
• PEPR2 is a second receptor for the Pep1 and Pep2 peptides and contributes to defense responses in Arabidopsis.   DOI:  10.1105/tpc.109.068874 ;  PMID:  20179141
• The VQ motif protein IKU1 regulates endosperm growth and seed size in Arabidopsis.   DOI:  10.1111/j.1365-313X.2010.04271.x ;  PMID:  20545893
• A WRKY transcription factor recruits the SYG1-like protein SHB1 to activate gene expression and seed cavity enlargement.   DOI:  10.1371/journal.pgen.1003347 ;  PMID:  23505389
• Brassinosteroid regulates seed size and shape in Arabidopsis.   DOI:  10.1104/pp.113.217703 ;  PMID:  23771896
• Alterations in seed development gene expression affect size and oil content of Arabidopsis seeds.   DOI:  10.1104/pp.113.226761 ;  PMID:  24014578
• SHORT HYPOCOTYL UNDER BLUE1 or HAIKU2 mixepression alters canola and Arabidopsis seed development.   DOI:  10.1111/nph.13632 ;  PMID:  26389843
• Seed Embryo Development Is Regulated via an AN3-MINI3 Gene Cascade.   DOI:  10.3389/fpls.2016.01645 ;  PMID:  27857719
• Corrigendum: Seed Embryo Development Is Regulated via an AN3-MINI3 Gene Cascade.   DOI:  10.3389/fpls.2017.01073 ;  PMID:  28616014
• RAV1 Negatively Regulates Seed Development by Directly Repressing MINI3 and IKU2 in Arabidopsis.   DOI:  10.14348/molcells.2018.0259 ;  PMID:  30518173
• Genome-wide identification of EMBRYO-DEFECTIVE (EMB) genes required for growth and development in Arabidopsis.   DOI:  10.1111/nph.16071 ;  PMID:  31334862
• MINISEED3 (MINI3), a WRKY family gene, and HAIKU2 (IKU2), a leucine-rich repeat (LRR) KINASE gene, are regulators of seed size in Arabidopsis.   DOI:  10.1073/pnas.0508418102 ;  PMID:  16293693
• Expression pattern shifts following duplication indicative of subfunctionalization and neofunctionalization in regulatory genes of Arabidopsis.   DOI:  10.1093/molbev/msj051 ;  PMID:  16280546
• SHORT HYPOCOTYL UNDER BLUE1 associates with MINISEED3 and HAIKU2 promoters in vivo to regulate Arabidopsis seed development.   DOI:  10.1105/tpc.108.064972 ;  PMID:  19141706

Sequences: