Armadillo-related proteins promote lateral root development in Arabidopsis. Coates, J., C., Laplaze, L., & Haseloff, J. Proceedings of the National Academy of Sciences of the United States of America, 103(5):1621-1626, National Academy of Sciences, 2006.
Armadillo-related proteins promote lateral root development in Arabidopsis. [link]Website  abstract   bibtex   
Armadillo/ -catenin and related proteins have important functions during animal and Dictyostelium development, regulating cell differentiation, proliferation, and adhesion. Armadillo-repeatcontaining proteins also exist in plants, but the majority have unknown roles. The Arabidopsis genes that show greatest sequence homology to Armadillo/ -catenin are called ARABIDILLO-1 and -2. Here, we demonstrate that ARABIDILLO-1 and -2 promote lateral root development. arabidillo-1/-2 mutants form fewer lateral roots, and ARABIDILLO-1-overexpressing lines produce more lateral roots than wild-type seedlings. ARABIDILLO-yellow fluorescent protein fusions are nuclear. ARABIDILLO proteins contain an F-box motif, and thus may target other proteins for proteasomal degradation. Overexpression of ARABIDILLO-1 protein fragments, including F-box fragments, in wild-type seedlings reduces lateral root formation to the level of the arabidillo-1/-2 mutant. We have shown that plant -catenin-related proteins regulate root development. We suggest that ARABIDILLO proteins may target an inhibitor of lateral root development for degradation and propose that Arabidopsis -catenin-related proteins define a previously uncharacterized pathway that promotes root branching.
@article{
 title = {Armadillo-related proteins promote lateral root development in Arabidopsis.},
 type = {article},
 year = {2006},
 pages = {1621-1626},
 volume = {103},
 websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1360535&tool=pmcentrez&rendertype=abstract},
 publisher = {National Academy of Sciences},
 institution = {School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom. j.c.coates@bham.ac.uk},
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 abstract = {Armadillo/ -catenin and related proteins have important functions during animal and Dictyostelium development, regulating cell differentiation, proliferation, and adhesion. Armadillo-repeatcontaining proteins also exist in plants, but the majority have unknown roles. The Arabidopsis genes that show greatest sequence homology to Armadillo/ -catenin are called ARABIDILLO-1 and -2. Here, we demonstrate that ARABIDILLO-1 and -2 promote lateral root development. arabidillo-1/-2 mutants form fewer lateral roots, and ARABIDILLO-1-overexpressing lines produce more lateral roots than wild-type seedlings. ARABIDILLO-yellow fluorescent protein fusions are nuclear. ARABIDILLO proteins contain an F-box motif, and thus may target other proteins for proteasomal degradation. Overexpression of ARABIDILLO-1 protein fragments, including F-box fragments, in wild-type seedlings reduces lateral root formation to the level of the arabidillo-1/-2 mutant. We have shown that plant -catenin-related proteins regulate root development. We suggest that ARABIDILLO proteins may target an inhibitor of lateral root development for degradation and propose that Arabidopsis -catenin-related proteins define a previously uncharacterized pathway that promotes root branching.},
 bibtype = {article},
 author = {Coates, Juliet C and Laplaze, Laurent and Haseloff, Jim},
 journal = {Proceedings of the National Academy of Sciences of the United States of America},
 number = {5}
}
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