Abstract
Flower development in plants depends not only on a set of nuclear genes but also on the coordinate action of the mitochondrion. Certain mitochondrial genomes in combination with certain nuclear genomes lead to the expression of cytoplasmic male-sterility (CMS). Both mitochondrial genes that determine male-sterility and nuclear Restorer-of-fertility genes that suppress the male-sterile phenotype have been cloned. Lately, the interactions between mitochondrial and nuclear genes through retrograde signalling in CMS-systems have been dissected. Of special interest are the altered expression patterns of floral homeotic genes in certain CMS-systems. Here, we review the mitochondrial influence on flower development and give examples from CMS-systems developed in Brassica, Daucus Carota, Nicotiana tabacum and Triticum aestivum. (C) 2007 Elsevier B.V. and Mitochondria Research Society. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 74-86 |
| Number of pages | 13 |
| Journal | Mitochondrion |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- cytoplasmic male-sterility (CMS)
- floral homeotic genes
- pentatricopeptide repeat (PPR)
- nuclear-mitochondrial interactions
- alloplasmic lines
- restorer-of-fertility
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