Two large Arabidopsis thaliana gene families are homologous to the Brassica gene superfamily that encodes pollen coat proteins and the male component of the self-incompatibility response

The male component of the self-incompatibility response in Brassica has recently been shown to be encoded by the S locus cysteine-rich gene (SCR). SCR is related, at the sequence level, to the pollen coat protein (PCP) gene family whose members encode small, cysteine-rich proteins located in the pro...

Full description

Saved in:
Bibliographic Details
Published in:Plant molecular biology 2001-05, Vol.46 (1), p.17-34
Main Authors: Vanoosthuyse, V, Miege, C, Dumas, C, Cock, J M
Format: Article
Language:English
Subjects:
Alleles
Amino Acid Sequence
Arabidopsis
Arabidopsis - genetics
Brassica
Brassica - genetics
Cloning, Molecular
Gene Expression Regulation, Plant
Genes
Glycoproteins - genetics
Life Sciences
Molecular Sequence Data
Multigene Family - genetics
Phylogeny
Plant Proteins - genetics
Pollen
Pollen - genetics
Proteins
RNA, Plant - genetics
RNA, Plant - metabolism
SCR gene
self-incompatibility
Sequence Homology, Amino Acid
Tissue Distribution
tryphine
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The male component of the self-incompatibility response in Brassica has recently been shown to be encoded by the S locus cysteine-rich gene (SCR). SCR is related, at the sequence level, to the pollen coat protein (PCP) gene family whose members encode small, cysteine-rich proteins located in the proteo-lipidic surface layer (tryphine) of Brassica pollen grains. Here we show that the Arabidopsis genome includes two large gene families with homology to SCR and to the PCP gene family, respectively. These genes are poorly predicted by gene-identification algorithms and, with few exceptions, have been missed in previous annotations. Based on sequence comparison and an analysis of the expression patterns of several members of each family, we discuss the possible functions of these genes. In particular, we consider the possibility that SCR-related genes in Arabidopsis may encode ligands for the S gene family of receptor-like kinases in this species.
ISSN:0167-4412
0735-9640
1573-5028
DOI:10.1023/A:1010664704926