What is MADS-box genes?

MADS-box genes encode transcription factors in all eukaryotic organisms thus far studied. Plant MADS-box proteins contain a DNA-binding (M), an intervening (I), a Keratin-like (K) and a C-terminal C-domain, thus plant MADS-box proteins are of the MIKC type.

What is the function of the box Gene?

In flowering plants, there is unequivocal evidence that MADS-box genes have a wide range of functions, for example, the formation of flowers (including the development of reproductive structures), the control of flowering time and the control of vegetative development.

What are MADS-box how do they play a role in flower development?

MADS box genes are an example of a family of highly conserved TFs that have diverse roles in plant development. Although these TFs play a pivotal role in determining floral organ identity (Weigel and Meyerowitz, 1994; Theißen, 2001), they are also important regulators of vegetative development.

What are organ identity genes?

Organ identity genes. Directly control organ identity and also code for transcription factors that control the expression of other genes, whose products are implicated in the formation or function of the distinct organs of the flower.

Which is part of the MADS box gene family?

MADS-box. The genes which contain this motif are called the MADS-box gene family. The MADS box encodes the DNA-binding MADS domain. The MADS domain binds to DNA sequences of high similarity to the motif CC [A/T] 6 GG termed the CArG-box. MADS-domain proteins are generally transcription factors.

Is the MADS box a conserved sequence motif?

The MADS box is a conserved sequence motif. The genes which contain this motif are called the MADS-box gene family. The MADS box encodes the DNA-binding MADS domain. The MADS domain binds to DNA sequences of high similarity to the motif CC[A/T]6GG termed the CArG-box.

How many MADS box genes are there in rice?

A genome-wide molecular characterization and microarray-based expression profiling of the genes encoding MADS-box transcription factor family in rice is presented. Using a thorough annotation exercise, 75 MADS-box genes have been identified in rice and categorized into MIKC c, MIKC*, Mα, Mβ and Mγ groups based on phylogeny.

Are there MADS box genes in gymnosperms?

Phylogenetic reconstructions of MADS-box sequences obtained from ferns, gymnosperms and higher eudicots reveal that, although ferns possess already MIKC type genes, these are not orthologous to the well characterized MADS-box genes from gymnosperms or angiosperms.