Molecular studies on cytoplasmic male sterility-associated genes and restorer genes in rice

Sota Fujii, Tomohiko Kazama, Kinya Toriyama

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

7 Citations (Scopus)


Cytoplasmic male sterility (CMS) is a maternally inherited trait that results in the inability to produce fertile pollen, and is widely known in higher plants. Recent studies have identified that an aberrant chimeric gene in mitochondria possibly causes CMS in various plant species. In some CMS lines, pollen fertility is recovered by a nuclear-encoded gene known as a fertility restorer gene (Rf). Rf genes are known to normalize the ectopic mRNAs or proteins derived from a chimeric gene (Hanson and Bentolila 2004). Therefore, CMS is assumed to be a phenomenon of nuclear-mitochondrial incompatibility. Fertility restorer genes for CMS of petunia (Petunia hybrida L.), radish (Raphanus sativus L.) and rice (Oryza saliva L.) have been recently cloned. Here we describe molecular studies on the CMS-associated mitochondrial chimeric genes and fertility restorer genes in rice, with special reference to the BT-CMS/Rf1 system.

Original languageEnglish
Title of host publicationBiotechnology in Agriculture and Forestry
PublisherSpringer International Publishing
Number of pages11
Publication statusPublished - 2008

Publication series

NameBiotechnology in Agriculture and Forestry
ISSN (Print)0934-943X


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