Publication Date:
2006-10-28
Description:
The social amoebas (Dictyostelia) display conditional multicellularity in a wide variety of forms. Despite widespread interest in Dictyostelium discoideum as a model system, almost no molecular data exist from the rest of the group. We constructed the first molecular phylogeny of the Dictyostelia with parallel small subunit ribosomal RNA and a-tubulin data sets, and we found that dictyostelid taxonomy requires complete revision. A mapping of characters onto the phylogeny shows that the dominant trend in dictyostelid evolution is increased size and cell type specialization of fruiting structures, with some complex morphologies evolving several times independently. Thus, the latter may be controlled by only a few genes, making their underlying mechanisms relatively easy to unravel.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2173941/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2173941/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schaap, Pauline -- Winckler, Thomas -- Nelson, Michaela -- Alvarez-Curto, Elisa -- Elgie, Barrie -- Hagiwara, Hiromitsu -- Cavender, James -- Milano-Curto, Alicia -- Rozen, Daniel E -- Dingermann, Theodor -- Mutzel, Rupert -- Baldauf, Sandra L -- 057137/Wellcome Trust/United Kingdom -- 076618/Wellcome Trust/United Kingdom -- BB/D013453/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- COD16760/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 Oct 27;314(5799):661-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Life Sciences, University of Dundee, DD15EH Dundee, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17068267" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Biological Evolution
;
DNA, Protozoan/genetics
;
DNA, Ribosomal/genetics
;
Dictyosteliida/*classification/*cytology/genetics/growth & development
;
Dictyostelium/classification/cytology/genetics/growth & development
;
Genes, Protozoan
;
Molecular Sequence Data
;
*Phylogeny
;
RNA, Ribosomal/genetics
;
Spores, Protozoan/cytology
;
Tubulin/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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