Publication Date:
1993-04-16
Description:
A phylogenetic framework inferred from comparisons of small subunit ribosomal RNA sequences describes the evolutionary origin and early branching patterns of the kingdom Animalia. Maximum likelihood analyses show the animal lineage is monophyletic and includes choanoflagellates. Within the metazoan assemblage, the divergence of sponges is followed by the Ctenophora, the Cnidaria plus the placozoan Trichoplax adhaerens, and finally by an unresolved polychotomy of bilateral animal phyla. From these data, it was inferred that animals and fungi share a unique evolutionary history and that their last common ancestor was a flagellated protist similar to extant choanoflagellates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wainright, P O -- Hinkle, G -- Sogin, M L -- Stickel, S K -- GM 32964/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1993 Apr 16;260(5106):340-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ 08903.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8469985" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Base Sequence
;
*Biological Evolution
;
Ciliophora/genetics
;
Eukaryota/genetics
;
*Fungi/genetics
;
Likelihood Functions
;
*Phylogeny
;
Porifera/genetics
;
RNA, Ribosomal/chemistry/*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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