P7: Structural characterization of MADS-box genes in the moss Physcomitrella patens

Structural characterization of MADS-box genes in the moss Physcomitrella patens

The MADS-domain protein PPM2 preferentially occurs in gametangia and sporophytes of the moss Physcomitrella patens.

To date, the function of MADS-domain transcription factors in non-seed plants remains largely elusive, although a number of genes have been isolated and characterized from a variety of species. In our study we analyzed PPM2, a classical MIKC-type MADS-box gene from the moss Physcomitrella patens, taking advantage of the unique technical properties Physcomitrella offers in terms of efficient hom...

MADS about MOSS.

Classic MIKC-type MADS-box genes (MIKC(c)) play diverse and crucial roles in angiosperm development, the most studied and best understood of which is the specification of floral organ identities. To shed light on how the flower evolved, phylogenetic and functional analyses of genes involved in its ontogeny, such as the MIKC(c) genes, must be undertaken in as broad a selection as possible of pla...

Selaginella Genome Analysis – Entering the “Homoplasy Heaven” of the MADS World

In flowering plants, arguably the most significant transcription factors regulating development are MADS-domain proteins, encoded by Type I and Type II MADS-box genes. Type II genes are divided into the MIKC(C) and MIKC* groups. In angiosperms, these types and groups play distinct roles in the development of female gametophytes, embryos, and seeds (Type I); vegetative and floral tissues in spor...

The transcriptome of the moss Physcomitrella patens: comparative analysis reveals a rich source of new genes

Three cDNA collections covering all important steps of the life cycle of the moss Physcomitrella patens have been used to prepare three normalized and subtracted cDNA libraries for the purpose of mass sequencing. After production of around 110,000 expressed sequence tags a clustered database was built and analysed. The Physcomitrella transcriptome is estimated to contain around 25,000 genes. Wh...