The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASES1 and 2 control male sporogenesis.
The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) family of plasma membrane receptors consists of five closely related members. The SERK1 and SERK2 genes show a complex expression pattern throughout development. Both are expressed in anther primordia up to the second parietal division. After this point, expression ceases in the sporocytes and is continued in the tapetum and middle layer precursors. Single knockout mutants of SERK1 and SERK2 show no obvious phenotypes. Double mutants of SERK1 and SERK2 are completely male sterile due to a failure in tapetum specification. Fertility can be restored by a single copy of either gene. The SERK1 and SERK2 proteins can form homodimers or heterodimers in vivo, suggesting they are interchangeable in the SERK1/SERK2 signaling complex.
Albrecht
Catherine
C
Laboratory of Biochemistry, Department of Agrotechnology and Food Sciences, Wageningen University and Research Centre, The Netherlands.
Russinova
Eugenia
E
Hecht
Valerie
V
Baaijens
Erik
E
de Vries
Sacco
S
D000483:Alleles; D017360:Arabidopsis / Q000201:enzymology / Q000235:genetics / Q000502:physiology*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000502:physiology*; D001483:Base Sequence; D017931:DNA Primers; D005816:Genetic Complementation Test; D008856:Microscopy, Fluorescence; D008969:Molecular Sequence Data; D009154:Mutation; D010957:Plasmids; D011494:Protein Kinases; D017346:Protein Serine-Threonine Kinases / Q000235:genetics / Q000502:physiology*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013170:Spores / Q000254:growth & development*
D029681:Arabidopsis Proteins; D017931:DNA Primers; D011494:Protein Kinases; C440035:SERK1 protein, Arabidopsis; D017346:Protein Serine-Threonine Kinases; C000601951:somatic embryogenesis receptor-like kinase 2, Arabidopsis