RRC ID 12681
Author Yamagata Y, Yamamoto E, Aya K, Win KT, Doi K, Sobrizal, Ito T, Kanamori H, Wu J, Matsumoto T, Matsuoka M, Ashikari M, Yoshimura A.
Title Mitochondrial gene in the nuclear genome induces reproductive barrier in rice.
Journal Proc. Natl. Acad. Sci. U.S.A.
Abstract Hybrid incompatibility in F(1) hybrids or later generations is often observed as sterility or inviability. This incompatibility acts as postzygotic reproductive isolation, which results in the irreversible divergence of species. Here, we show that the reciprocal loss of duplicated genes encoding mitochondrial ribosomal protein L27 causes hybrid pollen sterility in F(1) hybrids of the cultivated rice Oryza sativa and its wild relative O. glumaepatula. Functional analysis revealed that this gene is essential for the later stage of pollen development, and distribution analysis suggests that the gene duplication occurred before the divergence of the AA genome species. On the basis of these results, we discuss the possible contribution of the "founder effect" in establishing this reproductive barrier.
Volume 107(4)
Pages 1494-9
Published 2010-1-26
DOI 10.1073/pnas.0908283107
PII 0908283107
PMID 20080642
PMC PMC2824375
MeSH Alleles Cell Nucleus / genetics* Gene Expression Regulation, Plant Genes, Mitochondrial* Genetic Variation Genome, Plant* Microscopy, Electron Molecular Sequence Data Oryza / genetics* Oryza / growth & development Oryza / ultrastructure Plant Infertility* Pollen / genetics* Pollen / growth & development Pollen / ultrastructure
IF 9.58
Times Cited 47
Rice IL