Laboratory of Plant Reproduction
We study a molecular background of flowering in the genus Chenopodium and cytoplasmic male sterility in Silene vulgaris. Both model plants are members of the same order –Caryophyllales. Interest in plant reproduction and plant evolution arose from previous projects focused on the genetic diversity of wild plant species.
The genus Chenopodium contains both short-day and long-day plant species. A short-day species Chenopodium rubrum has been a traditional model of flowering investigated for a long time. A surprising feature of C. rubrum is its sensitivity to photoperiodic induction at seedling stage - at age of about five days. We have identified Chenopodium homologues of the genes CONSTANS and Flowering locus T, which play crucial roles in the course of photoperiodic induction of flowering in Arabidopsis thaliana. We study their expression in seedlings and mature plants of C. rubrum under various physiological conditions.
We noticed that FT- like genes could serve as molecular markers, particularly informative for phylogenetic studies of the complex group C. album sensu lato.
The second project, currently starting in our lab, is an investigation of cytoplasmic male sterility in Silene vulgaris. We focus on variation in mitochondrial transcription among natural populations as well as on the basis of inheritance of mitochondrial DNA. We are searching for the genes encoding cytoplasmic male sterility in this species.
We collaborate with Radomira Vankova who studies metabolism of cytokinins in transgenic tobacco under drought stress. We benefit from methods of plant gene expression analysis, adopted in the course of investigation of flowering (qRT PCR, Northerns with DIG labeled probes).
- Diamanty v prachu. Genetické základy květní indukce u zástupců rodu Chenopodium s kontrastní odpovědí na fotoperiodu. , GA ČR , Helena Štorchová
- Evoluce diploidně-polyploidního komplexu Chenopodium album agg. Společná anebo paralelní evoluce severoamerických a euroasijských druhů? , MŠMT , Helena Štorchová
- Tower of Babel: Mitochondrial-nuclear interactions in the gynodioecious species Silene vulgaris investigated with transcriptomics. , GA ČR , Helena Štorchová
- The role of hybridization and polyploidization in the evolution in Chenopodium album aggregate: From biosystematics to gene expression , GA ČR , Helena Štorchová
- Regulace kvetení u rodu Chenopodium studovaná pomocí transkriptomiky , GA ČR , Helena Štorchová
- Hunters or gardeners? Probing plant-microbe interactions in rootless carnivorous Utricularia from a transcriptomic perspective , GA ČR , Helena Štorchová
- Coexistence of native and inoculated arbuscular mycorrhizal fungi in the roots of host plants , GA ČR , Helena Štorchová
- Dynamic changes of mitochondrial DNA and transcription profiles in Silene vulgaris , GA ČR , Helena Štorchová
- The molecular genetic analysis of the candidate genes responsible for cytoplasmic male sterility in Silene vulgaris , MŠMT , Helena Štorchová
- The identification and studies of expression of the genes involved in photoperiodic flower induction in Chenopodium , GA ČR , Helena Štorchová
Uniformity of organellar DNA in Aldrovanda vesiculosa, an endangered aquatic carnivorous species, distributed across four continentsAQUATIC BOTANY 92 214-220 2010
Transcription profiles of mitochondrial genes correlate with mitochondrial DNA haplotypes in a natural population of Silene vulgaris.BMC PLANT BIOLOGY 10 11 2010 Fulltext: public PDF link
Transferases and transporters mediate the detoxification 5 and capacity to tolerate trinitrotoluene in ArabidopsisFUNCTIONAL & INTEGRATIVE GENOMICS 10 547–559 2010
Extensive loss of translational genes in the structurally dynamic mitochondrial genome of the angiosperm Silene latifoliaBMC EVOLUTIONARY BIOLOGY 10 274 2010 Fulltext: public PDF link
- PLANTA 228 929-940 2008 Fulltext: PDF link on intranet only
The role of cytokinins in responses to water deficit in tobacco plants over-expressing trans-zeatin O-glucosyltransferase gene under 35S or SAG12 promotersPLANT, CELL AND ENVIRONMENT 31 341-353 2008 Fulltext: PDF link on intranet only
- PLANT SYSTEMATICS AND EVOLUTION 268 235-256 2007 Fulltext: PDF link on intranet only
- AMERICAN FERN JOURNAL 97 149-154 2007 Fulltext: PDF link on intranet only
- BIOTECHNOLOGY AND SUSTAINABLE AGRICULTURE 2006 AND BEYOND 171-174 2007
Quantification of cDNA generated by reverse transcription of total RNA provides a simple alternative tool for quantitative RT-PCR normalizationBIOTECHNIQUES 41 156+ 2006 Fulltext: PDF link on intranet only