World‐wide genetic differentiation of Eubalaena: questioning the number of right whale species

  title={World‐wide genetic differentiation of Eubalaena: questioning the number of right whale species},
  author={H. C. Rosenbaum and Robert L. Brownell and Moira W. Brown and Catherine Schaeff and Vicky A Portway and Brian N. White and S Malik and Luis A. Pastene and Nathalie J. Patenaude and C. Scott Baker and Mutsuo Goto and Peter B. Best and P Clapham and Philip K. Hamilton and Michael Moore and Roger Payne and Victoria J. Rowntree and Charmaine Tynan and John L. Bannister and Robert DeSalle},
  journal={Molecular Ecology},
Few studies have examined systematic relationships of right whales (Eubalaena spp.) since the original species descriptions, even though they are one of the most endangered large whales. Little morphological evidence exists to support the current species designations for Eubalaena glacialis in the northern hemisphere and E. australis in the southern hemisphere. Differences in migratory behaviour or antitropical distribution between right whales in each hemisphere are considered a barrier to… 

Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus)

High levels of nucleotide diversity but almost no population structure within oceans, indicating large effective population sizes and high rates of transfer between whales and subpopulations.

Genetic evidence reveals a unique lineage of Bryde’s whales in the northern Gulf of Mexico

The GOMx whales are as divergent as these subspecies and species are from each other, and the level of divergence suggests a unique evolutionary trajectory worthy of its own taxonomic standing.

Integrating multiple lines of evidence to better understand the evolutionary divergence of humpback dolphins along their entire distribution range: a new dolphin species in Australian waters?

Based on a combined analysis of genetic and morphologic data collected from beach‐cast, remote‐biopsied and museum specimens from throughout the known Sousa range, there is convincing evidence for at least four species within the genus.

Mitochondrial DNA diversity and population structure among southern right whales (Eubalaena australis).

Multidimensional scaling of genetic differentiation suggests that gene flow occurred primarily between adjacent calving Grounds within an ocean basin, with mixing of lineages from different calving grounds occurring on feeding grounds.

DNA profile of a sixteenth century western North Atlantic right whale (Eubalaena glacialis)

All alleles from the historic specimen occur in the extant western North Atlantic population and both the probability of identity of the specimen and the number of heterozygous loci are similar to that in the existing population.

Population genetic structure of Bryde’s whales (Balaenoptera brydei) at the inter-oceanic and trans-equatorial levels

It is concluded that current gene flow between Bryde’s whale populations is low and that effective management actions should treat them as separate entities to ensure continued existence of the species.

Future Directions in Eubalaena spp.: Comparative Research to Inform Conservation

All three extant right whales (Eubalaena australis (Southern; SRW), glacialis (North Atlantic; NARW), and japonica (North Pacific; NPRW)) were heavily exploited, and the status of the two northern

Mitogenomic Phylogenetics of Fin Whales (Balaenoptera physalus spp.): Genetic Evidence for Revision of Subspecies

Strong evidence is provided that North Pacific and North Atlantic fin whales should not be considered the same subspecies, and the need for revision of the global taxonomy of the species is suggested.

Contrasting Phylogeographic Patterns Among Northern and Southern Hemisphere Fin Whale Populations With New Data From the Southern Pacific

It is proposed that all fin whales from the Southern Hemisphere, including those from middle latitudes of the Southeastern Pacific belong to B. p.



Utility of North Atlantic Right Whale Museum Specimens for Assessing Changes in Genetic Diversity

Abstract: We examined six historical specimens of the endangered North Atlantic right whale (Eubalaena glacialis) using DNA isolated from documented baleen plates from the late nineteenth and early

Analysis of mitochondrial DNA diversity within and between North and South Atlantic right whales

Phylogenetic analysis identified two major assemblages of haplotypes in E. australis from the samples collected from Peninsula Valdes, suggesting a mixing of two historically divergent populations.

Lack of population subdivision among the minke whales (Balaenoptera acutorostrata) from Icelandic and Norwegian waters based on mitochondrial DNA sequences

Mitochondrial DNA sequences were determined to examine the population structure of minke whales from the central and northeastern parts of the North Atlantic, as well as the Antarctic regions IV and V, and it was demonstrated that individuals from these two areas represent genetically distinct populations.

Assessment of mitochondrial DNA structuring and nursery use in the North Atlantic right whale (Eubalaena glacialis)

The North Atlantic right whale inhabits five areas along the east coast of North America at different times of the year and the existence of two subpopulations and an alternative nursery area is identified, the location of the alternative area is unclear and remains an important issue for the conservation of the species.

Distribution and diversity of mtDNA lineages among southern right whales (Eubalaena australis) from Australia and New Zealand

The nucleotide diversity and differentiation of mtDNA among the right whales was similar to that among humpback whales from the same regions, but haplotype diversity was significantly reduced, perhaps as a result of more intensive hunting during the last century and continued illegal hunting during this century.

Influence of seasonal migration on geographic distribution of mitochondrial DNA haplotypes in humpback whales

A marked segregation of mitochondrial DNA haplotypes among subpopulations as well as between the two oceans is reported, interpreted to be the consequence of maternally directed fidelity to migratory destinations.

Distribution of mtDNA haplotypes in North-Atlantic humpback whales: The influence of behavior on population structure

The combined results from the homogeneity tests and the genealogical tree indicate that behaviour (in this case maternally directed site fidelity to a foraging area) can influence the population structure of marine cetaceans on an evolutionary time scale.

Population genetic structure of North Atlantic, Mediterranean Sea and Sea of Cortez fin whales, Balaenoptera physalus (Linnaeus 1758): analysis of mitochondrial and nuclear loci

The results suggest the existence of several recently diverged populations in the North Atlantic and Mediterranean Sea, possibly with some limited gene flow between adjacent populations, a population structure which is consistent with earlier population models proposed by Kellogg, Ingebrigtsen, and Sergeant.

Neglected taxonomy and continuing extinctions of tuatara (Sphenodon)

The pattern of genetic and morphological differentiation reported here supports a taxonomy dating from 1877 that identified two extant species, one subsequently separated into two subspecies, and warrants increased conserving attention for the single populations of S. guntheri and S. reischeki.

Cetacean mitochondrial DNA control region: sequences of all extant baleen whales and two sperm whale species.

The findings suggest that the Antarctic minke whale should have a full species status, B. bonaerensis, and a close relationship between the gray whale (family Eschrichtiidae) sequence and those of the rorquals (family Balaenopteridae).