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Mutation and extinction rates in Adelie penguin (Pygoscelis adeliae) populations from fossil bones and blood samples collected from several sites in the Ross Sea Region
Entry ID: K030_2001_2005_NZ_1


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Summary
Abstract: Recent studies on the evolution of mitochondrial DNA in Adelie penguins has found high rates of mutation sparking a major controversy and raising the question of whether evolutionary rates are high because of high mutation rates or because of a low rate of haplotype extinction. As a result, this study aimed to measure the rate of mutation using DNA collected from known pedigrees and comparing it with the rate of evolution previously determined using DNA collected from ancient bones serially preserved through time. Mutation rates were determined between mitochondrial haplotypes. A series of abandoned Adelie penguin rookeries at Cape Adare was excavated and more than 1000 bones, likely to be the oldest collected in the Ross Sea, were collected. In addition, a separate party worked at sites in Terra Nova Bay including Inexpressible Island, Cape Reynolds, Coulman Island, Cape Adare, Duke of York Island, Edisto Glacier and Crater Cirque where a mixture of blood (Inexpressible Island and Coulman Island) and subfossil bones (all other sites) were collected for this study. Two methods of analysis, MCMC and a least squares regression analysis was used to estimate the rate of evolution in fossil bones, independent of tree topology (where mutation rates are calculated in a different manner). According to the neutral theory, the high rate of evolution of the control region in Adelie penguins is likely to be a consequence of a high mutation rate. Therefore, the rate of mutation for the gene sequence Hypervariable Region I (HVRI) was directly measured using >2,500 Adelie penguin families. Blood samples were collected from adults nesting penguins and their chicks at sites in Terra Nova Bay and Cape Bird.
Geographic Coverage
 N: -77.0 S: -78.0  E: 170.0  W: 165.0
 N: -74.5 S: -75.0  E: 165.0  W: 163.0

Temporal Coverage
Start Date: 2001-11-03
Stop Date: 2002-01-07

Start Date: 2002-12-04
Stop Date: 2003-01-06

Start Date: 2003-12-17
Stop Date: 2004-01-07

Start Date: 2004-12-16
Stop Date: 2005-01-11


Location Keywords
CONTINENT > ANTARCTICA > CAPE BIRD
CONTINENT > ANTARCTICA > CAPE ADARE
CONTINENT > ANTARCTICA > TERRA NOVA BAY
CONTINENT > ANTARCTICA > CRATER CIRQUE
CONTINENT > ANTARCTICA > INEXPRESSIBLE ISLAND
CONTINENT > ANTARCTICA > COULMAN ISLAND
CONTINENT > ANTARCTICA > EDISTO GLACIER
CONTINENT > ANTARCTICA > CAPE REYNOLDS
CONTINENT > ANTARCTICA > DUKE OF YORK ISLANDS
GEOGRAPHIC REGION > POLAR


Science Keywords
AGRICULTURE >ANIMAL SCIENCE >ANIMAL BREEDING AND GENETICS    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >BIRDS >PENGUINS
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >MUTATION RATES    [Definition]


ISO Topic Category
BIOTA


Platform
FIELD INVESTIGATION    [Information]


Quality
All data is held by the investigator. Please contact him for more information.


Keywords
FIELD SAMPLING


Data Set Progress
COMPLETE


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
DAVID LAMBERT
Role: INVESTIGATOR
Phone: +61 7 373 55298
Fax: +61 7 373 57459
Email: d.lambert at griffith.edu.at
Contact Address:
Griffith School of Environment
Griffith School of Biomolecular and Physical Science
Griffith University
170 Kessels Road
City: Nathan
Province or State: Queensland
Postal Code: 4111
Country: Australia


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Lambert, D., Millar, C., Swaminathan, S. And Baroni, C. 2010. Evolution on a frozen continent. American Scientist 98: 386-393.

Lambert, D.M. Ritchie, P.A. Millar, C.D. Holland, B. Drummond, A.J. Baroni, C. Rates of evolution in ancient DNA from Adélie penguins. Science 295(March): 2270-2273, 2002.

Ritchie, P.A. Millar, C.D. Gibb, G.C. Baroni, C. Lambert, D.M. Ancient DNA enables timing of the Pleistocene origin and Holocene expansion of two Adelie penguin lineages in Antarctica. Molecular biology and evolution 21(2): 240-248, 2004.

Roeder, A.D. Marshall, R.K. Mitchelson, A.J. Visagathilagar, T. Ritchie, P.A. Love, D.R. Pakai, T.J. McPartlan, H.C. Murray, N.D. Robinson, N.A. et al. Gene flow on the ice: genetic differentiation among Adélie penguin colonies around Antarctica. Molecular ecology 10: 1645-1656, 2001.

Roeder, A. Ritchie, P.A. Lambert, D.M. New DNA markers for penguins. Conservation genetics 3(3): 341-344, 2002.

Millar, C.D., Dodd, A., Anderson, J., Gibb, G.C., Ritchie, P.A., Baroni, C., Woodhams, M.D., Hendy, M.D. and Lambert, D.M. 2008. Mutation and evolutionary rates in Adélie penguins from the Antarctic. PLoS Genetics: in press.

Millar, C.D., Huynen, L., Subramanian, S., and Lambert, D.M. 2008. The ‘new frontier’ of ancient genomics. Trends in Ecology and Evolution 23(7): 386-393.

Creation and Review Dates
DIF Creation Date: 2008-10-06
Last DIF Revision Date: 2010-12-08


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