Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae)
Cytogenetic studies based upon somatic cells (bone marrow) have disclosed that the marmot hitherto designated Marmota caligata broweri Hall and Gilmore, occurring in the Brooks Range of Arctic Alaska, differs from M. c. caligata (Eschscholtz) in number of chromosomes (2n=36 as compared with 2n=42 in...
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1965
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ftunivnebraskali:oai:digitalcommons.unl.edu:parasitologyfacpubs-1549 2023-11-12T04:12:57+01:00 Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) Rausch, Robert L. Rausch, Virginia R. 1965-05-01T07:00:00Z application/pdf https://digitalcommons.unl.edu/parasitologyfacpubs/538 https://digitalcommons.unl.edu/context/parasitologyfacpubs/article/1549/viewcontent/Rausch_1965_CHROMOSOMA_Cytogeneic_Evidence_for_the_Specific_Distinction_of_an_Alaskan_Marmot.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/parasitologyfacpubs/538 https://digitalcommons.unl.edu/context/parasitologyfacpubs/article/1549/viewcontent/Rausch_1965_CHROMOSOMA_Cytogeneic_Evidence_for_the_Specific_Distinction_of_an_Alaskan_Marmot.pdf Faculty Publications from the Harold W. Manter Laboratory of Parasitology Parasitology text 1965 ftunivnebraskali 2023-10-30T10:43:25Z Cytogenetic studies based upon somatic cells (bone marrow) have disclosed that the marmot hitherto designated Marmota caligata broweri Hall and Gilmore, occurring in the Brooks Range of Arctic Alaska, differs from M. c. caligata (Eschscholtz) in number of chromosomes (2n=36 as compared with 2n=42 in M. caligata) and in proportions of chromosomal types. Typical karyograms for the two species are presented. It is concluded that the Brooks Range marmot is specifically distinct from M. caligata, the applicable name being Marmota broweri Hall and Gilmore. Also determined were diploid chromosome numbers for two other Nearctic species of marmots, M. flaviventris (Audubon and Bachman), with 42, and M. olympus (Merriam), with 40. It is suggested that M. broweri survived the last (Wisconsin) glaciations in the amphi-Beringian refugium, and that its closest affinities may be with one of the Eurasian species of Marmota. Text Arctic Brooks Range Alaska University of Nebraska-Lincoln: DigitalCommons@UNL Arctic Olympus ENVELOPE(156.767,156.767,-80.217,-80.217) |
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Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Parasitology |
spellingShingle |
Parasitology Rausch, Robert L. Rausch, Virginia R. Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) |
topic_facet |
Parasitology |
description |
Cytogenetic studies based upon somatic cells (bone marrow) have disclosed that the marmot hitherto designated Marmota caligata broweri Hall and Gilmore, occurring in the Brooks Range of Arctic Alaska, differs from M. c. caligata (Eschscholtz) in number of chromosomes (2n=36 as compared with 2n=42 in M. caligata) and in proportions of chromosomal types. Typical karyograms for the two species are presented. It is concluded that the Brooks Range marmot is specifically distinct from M. caligata, the applicable name being Marmota broweri Hall and Gilmore. Also determined were diploid chromosome numbers for two other Nearctic species of marmots, M. flaviventris (Audubon and Bachman), with 42, and M. olympus (Merriam), with 40. It is suggested that M. broweri survived the last (Wisconsin) glaciations in the amphi-Beringian refugium, and that its closest affinities may be with one of the Eurasian species of Marmota. |
format |
Text |
author |
Rausch, Robert L. Rausch, Virginia R. |
author_facet |
Rausch, Robert L. Rausch, Virginia R. |
author_sort |
Rausch, Robert L. |
title |
Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) |
title_short |
Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) |
title_full |
Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) |
title_fullStr |
Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) |
title_full_unstemmed |
Cytogenetic Evidence for the Specific Distinction of an Alaskan Marmot, Marmota broweri Hall and Gilmore (Mammalia: Sciuridae) |
title_sort |
cytogenetic evidence for the specific distinction of an alaskan marmot, marmota broweri hall and gilmore (mammalia: sciuridae) |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
1965 |
url |
https://digitalcommons.unl.edu/parasitologyfacpubs/538 https://digitalcommons.unl.edu/context/parasitologyfacpubs/article/1549/viewcontent/Rausch_1965_CHROMOSOMA_Cytogeneic_Evidence_for_the_Specific_Distinction_of_an_Alaskan_Marmot.pdf |
long_lat |
ENVELOPE(156.767,156.767,-80.217,-80.217) |
geographic |
Arctic Olympus |
geographic_facet |
Arctic Olympus |
genre |
Arctic Brooks Range Alaska |
genre_facet |
Arctic Brooks Range Alaska |
op_source |
Faculty Publications from the Harold W. Manter Laboratory of Parasitology |
op_relation |
https://digitalcommons.unl.edu/parasitologyfacpubs/538 https://digitalcommons.unl.edu/context/parasitologyfacpubs/article/1549/viewcontent/Rausch_1965_CHROMOSOMA_Cytogeneic_Evidence_for_the_Specific_Distinction_of_an_Alaskan_Marmot.pdf |
_version_ |
1782331192835571712 |