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SPP 1149: Rapeseed as a model to analyse `fixed heterosis` in allopolyploid plants (Project)

The spontaneous hybridisation of related species by combining their genomes (allopolyploidy) has played a prominent role in plant evolution. A main reason for the success of allopolyploids are the favourable interactions between genes on their homeologous chromosomes ('fixed' heterosis). Fixed heterosis is probably also important in diploid species because even in many diploids large genome...


Funding period: 2003 - 2009

Relevancy: 100%

SPP 1149: The role of transcription factors in heterosis for superior growth and biomass production in Arabidopsis thaliana (Project)

The aim of this project is to determine the role that transcription factor (TF) genes play in heterosis for superior early growth in Arabidopsis thaliana. Two Arabidopsis accessions will be used, C24 and Co1, which produce F1 hybrids that exhibit superior growth and biomass production. Differences in growth rates are manifest within the first few days after germination. TF genes that show...


Funding period: 2003 - 2009

Relevancy: 100%

SPP 1149: Transcriptome- and metabolome-based prediction of heterosis and hybrid performance in experimental hybrids of maize (Project)

QTL mapping is regarded as a powerful tool to uncover the genetic basis of heterosis. However, the approaches applied hitherto suffer from two drawbacks: (1) The materials analyzed usually originate from one hybrid and, thus, may not be representative for the germplasm of a crop in general. (2) The experiments rely on large segregating populations that are of no further use in hybrid breeding....


Funding period: 2003 - 2009

Relevancy: 100%

SPP 1149: Transcriptome and proteome wide identification of genes that are related to heterosis manifestion in maize seedling roots (Project)

Heterosis describes the superior performance of hybrids compared to the average of their parental inbred lines and is attributed to the interaction of a considerable number of genetic loci. A major step towards the understanding of heterosis will be the molecular identification and characterization of these loci. We suggest therefore a transcriptome- and proteome wide characterization of...


Funding period: 2003 - 2009