Type I MADS-box genes have experienced faster birth-and-death evolution than type II MADS-box genes in angiosperms.

ABSTRACT: Plant MADS-box genes form a large gene family for transcription factors and are involved in various aspects of developmental processes, including flower development. They are known to be subject to birth-and-death evolution, but the detailed features of this mode of evolution remain unclear. To have a deeper insight into the evolutionary pattern of this gene family, we enumerated all available functional and nonfunctional (pseudogene) MADS-box genes from the Arabidopsis and rice genomes. Plant MADS-box genes can be classified into types I and II genes on the basis of phylogenetic analysis. Conducting extensive homology search and phylogenetic analysis, we found 64 presumed functional and 37 nonfunctional type I genes and 43 presumed functional and 4 nonfunctional type II genes in Arabidops

SUBMITTER: Nam J 

PROVIDER: S-EPMC357026 | biostudies-literature | 2004 Feb

REPOSITORIES: biostudies-literature