A TEST OF THE GLACIAL REFUGIUM HYPOTHESIS USING PATTERNS OF MITOCHONDRIAL AND NUCLEAR DNA SEQUENCE VARIATION IN ROCK PTARMIGAN (LAGOPUS MUTUS)

@article{Holder1999ATO,
  title={A TEST OF THE GLACIAL REFUGIUM HYPOTHESIS USING PATTERNS OF MITOCHONDRIAL AND NUCLEAR DNA SEQUENCE VARIATION IN ROCK PTARMIGAN (LAGOPUS MUTUS)},
  author={Karen Holder and Robert D. Montgomerie and Vicki L. Friesen},
  journal={Evolution},
  year={1999},
  volume={53}
}
The glacial refugium hypothesis (GRH) proposes that glaciers promoted differentiation and generation of intraspecific diversity by isolating populations in ice‐free refugia. We tested three predictions of this hypothesis for the evolutionary divergence of rock ptarmigan (Lagopus mutus) during the Wisconsin glaciation of the late Pleistocene. To do this, we examined subspecies distributions, population genetic structure, and phylogenetic relationships in 26 populations across North America and… 

REFUGIAL ORIGINS OF REINDEER (RANGIFER TARANDUS L.) INFERRED FROM MITOCHONDRIAL DNA SEQUENCES

  • Ø. FlagstadK. Røed
  • Environmental Science, Biology
    Evolution; international journal of organic evolution
  • 2003
The data demonstrate that the current subspecies designation does not reflect the mtDNA phylogeography of the species, which in turn may indicate that morphological differences among subspecies have evolved as adaptive responses to postglacial environmental change.

REFUGIAL ORIGINS OF REINDEER ( TARANDUSL.) INFERRED FROM MITOCHONDRIAL DNA SEQUENCES

The data demonstrate that the current subspecies designation does not reflect the mtDNA phylogeography of the species, which in turn may indicate that morphological differences among subspecies have evolved as adaptive responses to postglacial environmental change.

Glacial vicariance and historical biogeography of rock ptarmigan (Lagopus mutus) in the Bering region

The estimates of divergence times of lineages suggest that Aleutian rock ptarmigan became isolated prior to the most recent Pleistocene glaciation event (late Wisconsin Stade) and that current patterns of genetic variation reflect the postglacial redistribution of divergent lineages and subsequent limited gene flow.

Glacial refugia and the phylogeography of Steller's sea lion (Eumatopias jubatus) in the North Pacific

Phylogenetic analysis suggests the genetic structure of E. jubatus is the result of Pleistocene glacial geology, which caused the elimination and subsequent reappearance of suitable rookery habitat during glacial and interglacial periods.

Variation in mitochondrial DNA reveals multiple distant glacial refugia in black spruce (Picea mariana), a transcontinental North American conifer

Comparison of the genetic structure derived from mtDNA markers and the colonization paths previously deduced from the fossil and pollen records allow us to infer at least three southern and one northeastern glacial populations for black spruce.

Islands in the ice: colonisation routes for rock ptarmigan to the Svalbard archipelago

An unrooted network and a phylogenetic tree showed that the Scandinavian population has diverged from the other populations by at least ten mutational steps, probably due to independent Colonisation of Europe and subsequent long-term isolation, and rules out Scandinavia as a source for colonisation of Svalbard.

Phylogeography and Post-Glacial Recolonization in Wolverines (Gulo gulo) from across Their Circumpolar Distribution

The most supported hypothesis was a single Beringia incursion during the last glacial maximum that established the northwestern population, followed by a west-to-east colonization during the Holocene, which supports expansion from a single refugium.

Mitochondrial evolution and phylogeography in the hydrozoan Obelia geniculata (Cnidaria)

Whereas extremely low substitution rates have been reported in other cnidarians, mainly based on anthozoans, substitution rates in O. geniculata are comparable to other invertebrates, and the first calibrated rate of nucleotide substitutions in hydrozoans is presented.

Genetic variation of the Siberian tit Parus cinctus populations at the regional level: a mitochondrial sequence analysis

Comparison of the mtDNA phylogeny of the Siberia tit with the phylogenies of the great tit, the blue tit and the willow tit showed that the Siberian tit and some other non-migratory species of the foliage gleaning guild share similar post glacial histories in the western palaearctic.

EVOLUTIONARY HISTORY OF THE ARCTIC GROUND SQUIRREL (SPERMOPHILUS PARRYII) IN NEARCTIC BERINGIA

Variation in mitochondrial cytochrome b sequences is examined to elucidate phylogeographic relationships and identify times of evolutionary divergence in arctic ground squirrels (Spermophilus parryii), suggesting that this arctic-adapted species provides an excellent model to examine the biogeographic history of the Nearctic.
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