- Department of Plant Biology, Swedish University of Agricultural Sciences
Carlsson, Jenny; Leino, Matti; Sohlberg, Joel; Sundstroem, Jens F.; Glimelius, Kristina
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.
cytoplasmic male-sterility (CMS); floral homeotic genes; pentatricopeptide repeat (PPR); nuclear-mitochondrial interactions; alloplasmic lines; restorer-of-fertility
2008, Volume: 8, number: 1, pages: 74-86
Publisher: ELSEVIER SCI LTD