[Answer] How do MADS-box genes in plants compare to Hox genes in animals?

Answer: Both encode DNA-binding proteins that regulate development.
How do MADS-box genes in plants compare to Hox genes in animals?

MADS-box genes have a variety of functions. In animals MADS-box genes are involved in muscle development and cell proliferation and differentiation. Functions in fungi range from pheromone response to arginine metabolism. In plants MADS-box genes are involved in controlling all major aspects of development including male and female gametophytedevelopment embryo and seed development as well as root flower and fruit d…

Although plants have homeobox-containing genes plant homeotic factors tend to possess MADS-box DNA binding domains. Animal genomes also possess a small number MADS-box factors. Thus in the independent evolution of multicellularity in plants and animals different eukaryotic transcription factor families were co-opted to serve homeotic functions.

Homeotic gene – Wikipedia

Homeobox – Wikipedia

MADS-box – Wikipedia

Homeobox – Wikipedia

They have various functions depending on the organism including flower development proto-oncogene transcription and gene regulation in specific cells (such as muscle cells). Despite the terms being commonly interchanged not all homeotic genes are Hox genes; the MADS-box genes are homeotic but not Hox genes.

Hox genes a subset of homeobox genes are a group of related genes that specify regions of the body plan of an embryo along the head-tail axis of animals . Hox proteins encode and specify the characteristics of ‘position’ ensuring that the correct structures form in the correct places of the body. For example Hox genes in insects specify which appendages form on a segment (e.g. legs …

Paralogous genes often belong to the same species. They can shape the structure of whole genomes and thus explain genome evolution to a large extent. Examples include th…

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