Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species.

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Abstract Text:

Masato Nikaido,Oliver Piskurek,Norihiro Okada,

Morphological data have indicated that toothed whales form a monophyletic group. However, research published in the last several years has made the issue of the monophyly or paraphyly of toothed whales a subject of debate. Our group previously characterized three independent loci in which SINE insertions were shared among dolphins and sperm whales, thus supporting the traditional, morphologically based hypothesis of toothed whale monophyly. Although in recent years a few additional molecular works proposed this topology, there is still skepticism over this monophyly from the view point of molecular systematics. When the phylogeny of rapidly radiated taxa is examined using the SINE method, it is important to consider the ascertainment bias that arises when choosing a particular taxon for SINE loci screening. To overcome this methodological problem specific to the SINE method, we examined all possible topologies among sperm whales, dolphins and baleen whales by extensively screening SINE loci from species of all three lineages. We characterized nine independent SINE loci from the genomes of sperm whales and dolphins, all of which cluster sperm whales and dolphins but exclude baleen whales. Furthermore, we characterized ten independent loci from baleen whales, all of which were amplified in a common ancestor of these whales. From these observations, we conclude that toothed whales form a monophyletic group and that no ancestral SINE polymorphisms hinder their phylogenetic assignment despite the short divergence times of the major lineages of extant whales during evolution. These results suggest that a small population of common ancestors of all toothed whales ultimately diverged into the lineages of sperm whales and dolphins.

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Publishing Authors By Initials

M Nikaido,O Piskurek,N Okada,

For similar short interspersed nucleotide elements research abstracts see: short interspersed nucleotide elements research

PUBMED ID PMID:

MEDLINE DATE:

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Molecular phylogenetics and evolution

VOLUME: 43

Page Numbers: 216-24

Journal Abbreviation: Mol. Phylogenet. Evol.

ISSN: 1055-7903

DAY: 17

MONTH: 08

YEAR: 2006

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9304400

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Keywords Mesh Terms:

KEYWORDS: Short Interspersed Nucleotide Elements

MESH TERMS: genetics

Chemical & Substance for Abstract: Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species. Information

Substance Name: DNA Primers

Registry Number: 0

Grant and Affiliation Information for Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species.

AFFILIATION: Department of Biological Sciences, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Japan.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Mol Phylogenet Evol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species Related Publications

• Brain magnetic resonance imaging of an adult case of acute necrotizing encephalopathy.
• CC-chemokine ligand 17 gene therapy induces tumor regression through augmentation of tumor-infiltrating immune cells in a murine model of preexisting CT26 colon carcinoma.
• Cell volume-sensitive chloride channels: phenotypic properties and molecular identity.
• Contact between the glenoid and the humeral head in abduction, external rotation, and horizontal extension: a new concept of glenoid track.
• Contributions of principal neocortical neurons to magnetoencephalography and electroencephalography signals.
• Design and synthesis of opioidmimetics containing 2',6'-dimethyl-L-tyrosine and a pyrazinone-ring platform.
• Effects of topical antiglaucoma medications on corneal epithelium as evaluated by gene expression patterns.
• Enantioselective synthesis of a phenylalanine library containing alkyl groups on the aromatic moiety: confirmation of stereostructure by x-ray analysis.
• Genetic background of Japanese patients with adult-onset storage diseases in the liver.
• Increased inhibitory capacity of an anti-C5a complementary peptide following acetylation of N-terminal alanine.
• Ion channels and transporters involved in cell volume regulation and sensor mechanisms.
• Physiological FDG uptake in the ovaries after hysterectomy.
• Preferential expression of very late antigen-4 on type 1 CTL cells plays a critical role in trafficking into central nervous system tumors.
• Prerequisite role of persistent cell shrinkage in apoptosis of human epithelial cells.
• Probucol modulates iron nitrilotriacetate (Fe-NTA)-dependent renal carcinogenesis and hyperproliferative response: diminution of oxidative stress.
• Quantitative colocalization analysis of multicolor confocal immunofluorescence microscopy images: pushing pixels to explore biological phenomena.
• Recursive artifact windowed-single tone extraction method (RAW-STEM) as periodic noise filter for electrophysiological signals with interfering transients.
• Regional differences in GABAergic modulation for TEA-induced synaptic plasticity in rat hippocampal CA1, CA3 and dentate gyrus.
• Separation of polyvinyl chloride (PVC) from automobile shredder residue (ASR) by froth flotation with ozonation.
• Significance of activated mast cells in submucosa and muscularis propria of patients with Crohn's disease detected by a novel antimast cell surface molecule antibody.
• Spray-drying preparation of microparticles containing cationic PLGA nanospheres as gene carriers for avoiding aggregation of nanospheres.
• Toothed whale monophyly reassessed by SINE insertion analysis: the absence of lineage sorting effects suggests a small population of a common ancestral species.
• Transformation of mu-opioid receptor agonists into biologically potent mu-opioid receptor antagonists.
• X-ray polarimetry with the microstrip gas chamber.
• [Evaluation for anaerobic culture system: Anoxomat Mart II]
• [Tocopherol Acetate Reference Standard (Control 001) of National Institute of Health Sciences]
• [Tocopherol Acetate Reference Standard (Control 941) of the National Institute of Health Sciences]
• [Tocopherol Acetate Reference Standard (Control 971) of National Institute of Health Sciences]
• [Tocopherol Succinate Reference Standard (Control 881) of National Institute of Hygienic Sciences]
• [Tocopherol Succinate Reference Standard (Control 981) of National Institute of Health Sciences]