Answer to Question #291659 in Evolution for Yiyi

Question

You have access to the sequence genomes for moss and the lycophyte

Selaginella. Your goal in analyzing the data is to write a ground-breaking paper that

answers an important question about the evolution of plants. What questions

would you try?

Answer 1

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 MIKCC 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 sporophytes (MIKCC); and male gametophytes (MIKC*), but their functions in other plants are largely unknown. The complete set of MADS-box genes has been described for several angiosperms and a moss, Physcomitrella patens.