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Phylogenetic Analysis of Plant Basic Helix-Loop-Helix Proteins Michael J. Buck, William R. Atchley
 

Summary: Phylogenetic Analysis of Plant Basic Helix-Loop-Helix Proteins
Michael J. Buck, William R. Atchley
Department of Genetics and The Center for Computational Biology, North Carolina State University, Campus Box 7614, Raleigh,
NC 27695-7614, USA
Received: 12 September 2002/Accepted: 21 January 2003
Abstract. The basic helix-loop-helix (bHLH) family
of proteins is a group of functionally diverse tran-
scription factors found in both plants and animals.
These proteins evolved early in eukaryotic cells be-
fore the split of animals and plants, but appear to
function in `plant-specific' or `animal-specific' pro-
cesses. In animals bHLH proteins are involved in
regulation of a wide variety of essential develop-
mental processes. On the contrary, bHLH proteins
have not been extensively studied in plants. Those
that have been characterized function in anthocyanin
biosynthesis, phytochrome signaling, globulin ex-
pression, fruit dehiscence, carpel and epidermal de-
velopment. We have identified 118 different bHLH
genes in the completely sequenced Arabidopsis thali-

  

Source: Atchley, William R.- Department of Genetics, North Carolina State University

 

Collections: Biology and Medicine