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Mammalia: Rodentia) Around Amasya, Turkey
Z. ATLI ŞEKEROĞLU, H. KEFELİOĞLU, V. ŞEKEROĞLU Turk J Zool 2011; 35(4): 593-598 © TÜBİTAK Research Article doi:10.3906/zoo-0910-4 Cytogenetic characteristics of Microtus dogramacii (Mammalia: Rodentia) around Amasya, Turkey Zülal ATLI ŞEKEROĞLU1,*, Haluk KEFELİOĞLU2, Vedat ŞEKEROĞLU1 1Ordu University, Faculty of Arts and Sciences, Department of Biology, 52200 Ordu - TURKEY 2Ondokuz Mayıs University, Faculty of Arts and Sciences, Department of Biology, 55139 Kurupelit, Samsun - TURKEY Received: 02.10.2009 Abstract: Th e banding patterns of chromosomes of Microtus dogramacii, a recently described vole species endemic to Turkey, were studied. G-, C-, and Ag-NOR-banded patterns of this species are reported here for the fi rst time. In this study, 2 karyotypical forms were determined. Each form had the same diploid chromosome numbers (2n = 48), but possessed diff erent autosomal morphologies. For this reason, the samples collected from the research area were karyologically separated into 2 groups, cytotype-1 (NF = 50) and cytotype-2 (NF = 52). All chromosomes possessed centromeric/pericentromeric heterochromatin bands in both karyotypical forms. It was shown that the acrocentric chromosomes of pair 8 in cytotype-1 have been transformed into metacentric chromosomes in cytotype-2 through pericentric inversion. Variation in the number of active NORs was also observed, but the modal number of active NORs was 8. Due to the chromosomal variation found in M. dogramacii, the cytogenetic results presented in this study may represent a process of chromosomal speciation. Key words: Microtus dogramacii, karyology, pericentric inversion, Turkey Amasya (Türkiye) çevresindeki Microtus dogramacii (Mammalia: Rodentia)’nin sitogenetik özellikleri Özet: Türkiye için endemik olan yeni tanımlanmış bir tarla faresi, Microtus dogramacii’nin kromozomlarının bantlı örnekleri çalışıldı. -
Further Assessment of the Genus Neodon and the Description of a New Species from Nepal
RESEARCH ARTICLE Further assessment of the Genus Neodon and the description of a new species from Nepal 1³ 2 2 3 Nelish PradhanID , Ajay N. Sharma , Adarsh M. Sherchan , Saurav Chhetri , 4 1³ Paliza Shrestha , C. William KilpatrickID * 1 Department of Biology, University of Vermont, Burlington, Vermont, United States of America, 2 Center for Molecular Dynamics±Nepal, Kathmandu, Nepal, 3 Department of Biology, Trinity University, San Antonio, Texas, United States of America, 4 Department of Plant and Soil Science, University of Vermont, Burlington, Vermont, United States of America a1111111111 ³ These authors are joint senior authors on this work. a1111111111 * [email protected] a1111111111 a1111111111 a1111111111 Abstract Recent molecular systematic studies of arvicoline voles of the genera Neodon, Lasiopod- omys, Phaiomys, and Microtus from Central Asia suggest the inclusion of Phaiomys leu- OPEN ACCESS curus, Microtus clarkei, and Lasiopodomys fuscus into Neodon and moving Neodon juldaschi into Microtus (Blanfordimys). In addition, three new species of Neodon (N. linz- Citation: Pradhan N, Sharma AN, Sherchan AM, Chhetri S, Shrestha P, Kilpatrick CW (2019) Further hiensis, N. medogensis, and N. nyalamensis) have recently been described from Tibet. assessment of the Genus Neodon and the Analyses of concatenated mitochondrial (Cytb, COI) and nuclear (Ghr, Rbp3) genes recov- description of a new species from Nepal. PLoS ered Neodon as a well-supported monophyletic clade including all the recently described ONE 14(7): e0219157. https://doi.org/10.1371/ and relocated species. Kimura-2-parameter distance between Neodon from western Nepal journal.pone.0219157 compared to N. sikimensis (K2P = 13.1) and N. irene (K2P = 13.4) was equivalent to genetic Editor: Johan R. -
Mammal Species Native to the USA and Canada for Which the MIL Has an Image (296) 31 July 2021
Mammal species native to the USA and Canada for which the MIL has an image (296) 31 July 2021 ARTIODACTYLA (includes CETACEA) (38) ANTILOCAPRIDAE - pronghorns Antilocapra americana - Pronghorn BALAENIDAE - bowheads and right whales 1. Balaena mysticetus – Bowhead Whale BALAENOPTERIDAE -rorqual whales 1. Balaenoptera acutorostrata – Common Minke Whale 2. Balaenoptera borealis - Sei Whale 3. Balaenoptera brydei - Bryde’s Whale 4. Balaenoptera musculus - Blue Whale 5. Balaenoptera physalus - Fin Whale 6. Eschrichtius robustus - Gray Whale 7. Megaptera novaeangliae - Humpback Whale BOVIDAE - cattle, sheep, goats, and antelopes 1. Bos bison - American Bison 2. Oreamnos americanus - Mountain Goat 3. Ovibos moschatus - Muskox 4. Ovis canadensis - Bighorn Sheep 5. Ovis dalli - Thinhorn Sheep CERVIDAE - deer 1. Alces alces - Moose 2. Cervus canadensis - Wapiti (Elk) 3. Odocoileus hemionus - Mule Deer 4. Odocoileus virginianus - White-tailed Deer 5. Rangifer tarandus -Caribou DELPHINIDAE - ocean dolphins 1. Delphinus delphis - Common Dolphin 2. Globicephala macrorhynchus - Short-finned Pilot Whale 3. Grampus griseus - Risso's Dolphin 4. Lagenorhynchus albirostris - White-beaked Dolphin 5. Lissodelphis borealis - Northern Right-whale Dolphin 6. Orcinus orca - Killer Whale 7. Peponocephala electra - Melon-headed Whale 8. Pseudorca crassidens - False Killer Whale 9. Sagmatias obliquidens - Pacific White-sided Dolphin 10. Stenella coeruleoalba - Striped Dolphin 11. Stenella frontalis – Atlantic Spotted Dolphin 12. Steno bredanensis - Rough-toothed Dolphin 13. Tursiops truncatus - Common Bottlenose Dolphin MONODONTIDAE - narwhals, belugas 1. Delphinapterus leucas - Beluga 2. Monodon monoceros - Narwhal PHOCOENIDAE - porpoises 1. Phocoena phocoena - Harbor Porpoise 2. Phocoenoides dalli - Dall’s Porpoise PHYSETERIDAE - sperm whales Physeter macrocephalus – Sperm Whale TAYASSUIDAE - peccaries Dicotyles tajacu - Collared Peccary CARNIVORA (48) CANIDAE - dogs 1. Canis latrans - Coyote 2. -
Ecological Niche Evolution and Its Relation To
514 G. Shenbrot Сборник трудов Зоологического музея МГУ им. М.В. Ломоносова Archives of Zoological Museum of Lomonosov Moscow State University Том / Vol. 54 Cтр. / Pр. 514–540 ECOLOGICAL NICHE EVOLUTION AND ITS RELATION TO PHYLOGENY AND GEOGRAPHY: A CASE STUDY OF ARVICOLINE VOLES (RODENTIA: ARVICOLINI) Georgy Shenbrot Mitrani Department of Desert Ecology, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev; [email protected] Relations between ecological niches, genetic distances and geographic ranges were analyzed by pair-wise comparisons of 43 species and 38 intra- specifi c phylogenetic lineages of arvicoline voles (genera Alexandromys, Chi onomys, Lasiopodomys, Microtus). The level of niche divergence was found to be positively correlated with the level of genetic divergence and negatively correlated with the level of differences in position of geographic ranges of species and intraspecifi c forms. Frequency of different types of niche evolution (divergence, convergence, equivalence) was found to depend on genetic and geographic relations of compared forms. Among the latter with allopatric distribution, divergence was less frequent and convergence more frequent between intra-specifi c genetic lineages than between either clo sely-related or distant species. Among the forms with parapatric dis- tri bution, frequency of divergence gradually increased and frequencies of both convergence and equivalence gradually decreased from intra-specifi c genetic lineages via closely related to distant species. Among species with allopatric distribution, frequencies of niche divergence, con vergence and equivalence in closely related and distant species were si milar. The results obtained allowed suggesting that the main direction of the niche evolution was their divergence that gradually increased with ti me since population split. -
Small Mammals from Sima De Los Huesos
Gloria Cuenca-Bescós Small mammals from Sima de los & César Laplana Huesos Conesa Paleontología. F. Ciencias, Universidad A small collection of rodents from Sima de los Huesos helps to clarify the de Zaragoza, 50009 Zaragoza, Spain, stratigraphic position of this famous human locality. The presence of Allocricetus and U.A. CSIC-U. Zaragoza, Museo bursae and Pliomys lenki relictus and the size of A. bursae, Apodemus sylvaticus and Nacional de Ciencias Naturales, Eliomys quercinus suggest a Middle Pleistocene age (Saalian) to the Clays where 28002 Madrid, Spain humans have been found. ? 1997 Academic Press Limited Jose Ignacio Canudo Museo de Paleontología, Universidad de Zaragoza, 50009 Zaragoza, Spain Juan Luis Arsuaga Dpto. de Paleontología, Universidad Complutense, 28006 Madrid, Spain Received 24 April 1996 Revision received 1 November 1996 and accepted 22 March 1997 Keywords: rodents, Middle Pleistocene, Atapuerca, Sima de los Huesos, Spain, micromammal biochronology. Journal of Human Evolution (1997) 33, 175–190 Introduction In 1974, René Lavocat wrote in this journal: ‘‘It may be rather surprising to read in a journal devoted to human evolution a paper on rodents. This contribution is justified by the fact that the study of rodents can provide excellent arguments’’ . of correlation and relative age assignment of fossil hominid sites (e.g., Lavocat, 1956; Chaline, 1971; Repenning & Fejfar, 1982; Carbonell et al., 1995) and can also tell us a great deal about past environments (Bishop, 1982; Andrews, 1990a,b). The Sima de los Huesos cave locality is one of the sites containing Pleistocene humans in the Sierra de Atapuerca (Burgos, Spain) karst system (Aguirre, 1995; Arsuaga et al., 1993; Bischoff et al., 1997; Carbonell et al., 1995 and references therein). -
Fossil Imprint 3.2017.Indb
FOSSIL IMPRINT • vol. 73 • 2017 • no. 3–4 • pp. 495–514 (formerly ACTA MUSEI NATIONALIS PRAGAE, Series B – Historia Naturalis) COMMENTS ON THE AGE AND DISPERSAL OF MICROTOSCOPTINI (RODENTIA: CRICETIDAE) We can know only that we know nothing. And that is the highest degree of human wisdom. Lev Nikolayevich Tolstoy, War and Peace LUTZ C. MAUL1,*, LEONID I. REKOVETS2, WOLF-DIETER HEINRICH3, ANGELA A. BRUCH4 1 Senckenberg Forschungsstation für Quartärpaläontologie, Am Jakobskirchhof 4, Weimar, Germany; e-mail: [email protected]. 2 Wrocław University of Environmental and Life Sciences, ul. C. K. Norwida 25, 50-375 Wrocław, Poland; e-mail: [email protected]. 3 Museum für Naturkunde – Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43, 10115 Berlin, Germany; e-mail: [email protected]. 4 The Role of Culture in Early Expansions of Humans, Senckenberg Forschungsinstitut, Senckenberganlage 25, 60325 Frankfurt/M., Germany; e-mail: [email protected]. * corresponding author Maul, L. C., Rekovets, L. I., Heinrich, W.-D., Bruch, A. A. (2017): Comments on the age and dispersal of Microtoscoptini (Rodentia: Cricetidae). – Fossil Imprint, 73(3-4): 495–514, Praha. ISSN 2533-4050 (print), ISSN 2533-4069 (on-line). Abstract: The tribe Microtoscoptini, comprising the genera Microtoscoptes from Eurasia and Paramicrotoscoptes and Goniodontomys from North America, is an enigmatic group of microtoid cricetids, which was widespread during the Late Miocene. Although fossil remains have been reported from 33 localities, their evolutionary and dispersal history is still poorly understood. Here we give an overview of sites and records and discuss temporal ranges and some aspects of the dispersal history. -
Ther5 1 017 024 Golenishchev.Pm6
Russian J. Theriol. 5 (1): 1724 © RUSSIAN JOURNAL OF THERIOLOGY, 2006 The developmental conduit of the tribe Microtini (Rodentia, Arvicolinae): Systematic and evolutionary aspects Fedor N. Golenishchev & Vladimir G. Malikov ABSTRACT. According to the recent data on molecular genetics and comparative genomics of the grey voles of the tribe Microtini it is supposed, that their Nearctic and Palearctic groups had independently originated from different lineages of the extinct genus Mimomys. Nevertheless, that tribe is considered as a natural taxon. The American narrow-skulled voles are referred to a new taxon, Vocalomys subgen. nov. KEY WORDS: homology, homoplasy, phylogeny, vole, Microtini, evolution, taxonomy. Fedor N. Golenishchev [[email protected]] and Vladimir G. Malikov [[email protected]], Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, Saint-Petersburg 199034, Russia. «Êàíàë ðàçâèòèÿ» ïîëåâîê òðèáû Microtini (Rodentia, Arvicolinae): ñèñòåìàòèêî-ýâîëþöèîííûé àñïåêò. Ô.Í. Ãîëåíèùåâ, Â.Ã. Ìàëèêîâ ÐÅÇÞÌÅ.  ñîîòâåòñòâèè ñ ïîñëåäíèìè äàííûìè ìîëåêóëÿðíîé ãåíåòèêè è ñðàâíèòåëüíîé ãåíîìè- êè ñåðûõ ïîëåâîê òðèáû Microtini äåëàåòñÿ âûâîä î íåçàâèñèìîì ïðîèñõîæäåíèè íåàðêòè÷åñêèõ è ïàëåàðêòè÷åñêèõ ãðóïï îò ðàçíûõ ïðåäñòàâèòåëåé âûìåðøåãî ðîäà Mimomys. Íåñìîòðÿ íà ýòî, äàííàÿ òðèáà ñ÷èòàåòñÿ åñòåñòâåííûì òàêñîíîì. Àìåðèêàíñêèå óçêî÷åðåïíûå ïîëåâêè âûäåëÿþòñÿ â ñàìîñòîÿòåëüíûé ïîäðîä Vocalomys subgen. nov. ÊËÞ×ÅÂÛÅ ÑËÎÂÀ: ãîìîëîãèÿ, ãîìîïëàçèÿ, ôèëîãåíèÿ, ïîëåâêè, Microtini, ýâîëþöèÿ, òàêñîíîìèÿ. Introduction The history of the group in the light of The Holarctic subfamily Arvicolinae Gray, 1821 is the molecular data known to comprise a number of transberingian vicari- ants together with a few Holarctic forms. Originally, The grey voles are usually altogether regarded as a the extent of their phylogenetic relationships was judged first-hand descendant of the Early Pleistocene genus on their morphological similarity. -
Diversification of Muroid Rodents Driven by the Late Miocene Global Cooling Nelish Pradhan University of Vermont
University of Vermont ScholarWorks @ UVM Graduate College Dissertations and Theses Dissertations and Theses 2018 Diversification Of Muroid Rodents Driven By The Late Miocene Global Cooling Nelish Pradhan University of Vermont Follow this and additional works at: https://scholarworks.uvm.edu/graddis Part of the Biochemistry, Biophysics, and Structural Biology Commons, Evolution Commons, and the Zoology Commons Recommended Citation Pradhan, Nelish, "Diversification Of Muroid Rodents Driven By The Late Miocene Global Cooling" (2018). Graduate College Dissertations and Theses. 907. https://scholarworks.uvm.edu/graddis/907 This Dissertation is brought to you for free and open access by the Dissertations and Theses at ScholarWorks @ UVM. It has been accepted for inclusion in Graduate College Dissertations and Theses by an authorized administrator of ScholarWorks @ UVM. For more information, please contact [email protected]. DIVERSIFICATION OF MUROID RODENTS DRIVEN BY THE LATE MIOCENE GLOBAL COOLING A Dissertation Presented by Nelish Pradhan to The Faculty of the Graduate College of The University of Vermont In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Specializing in Biology May, 2018 Defense Date: January 8, 2018 Dissertation Examination Committee: C. William Kilpatrick, Ph.D., Advisor David S. Barrington, Ph.D., Chairperson Ingi Agnarsson, Ph.D. Lori Stevens, Ph.D. Sara I. Helms Cahan, Ph.D. Cynthia J. Forehand, Ph.D., Dean of the Graduate College ABSTRACT Late Miocene, 8 to 6 million years ago (Ma), climatic changes brought about dramatic floral and faunal changes. Cooler and drier climates that prevailed in the Late Miocene led to expansion of grasslands and retreat of forests at a global scale. -
Karyotypic Relationships of the Tatra Vole (Microtus Tatricus)
Folia Zool. – 53(3): 279–284 (2004) Karyotypic relationships of the Tatra vole (Microtus tatricus) Natália MARTÍNKOVÁ1, Petra NOVÁ2, Olga V. SABLINA3, Alexander S. GRAPHODATSKY3 and Jan ZIMA1* 1 Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, CZ-603 65 Brno, Czech Republic; e-mail: [email protected]; [email protected] 2 Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ-128 44 Praha, Czech Republic; e-mail: [email protected] 3 Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk 6030090, Russia; e-mail: [email protected] Received 22 December 2003; Accepted 25 August 2004 A b s t r a c t . This study reports for the first time the banding pattern on chromosomes of the Tatra vole, Microtus tatricus, as revealed by G-, C-, and Ag-NOR staining procedures. The banded karyotype of M. tatricus was compared with Microtus (Terricola) subterraneus, M. (Stenocranius) gregalis, and M. (Blanfordimys) aghanus. The karyotype of M. tatricus possesses highly derived features, e.g., the low diploid number of chromosomes or unique combinations of arms in the biarmed autosomes. It is almost impossible to find clear relationships of M. tatricus with other extant vole species from the point of view of comparative karyology. The karyotypic changes in voles are apparently not accompanied by adequate divergence in morphological and genetic traits. Key words: chromosomes, banding pattern, phylogeny, M. subterraneus, M. gregalis, M. afghanus Introduction The Tatra vole, Microtus tatricus (Kratochvíl, 1952) is the only mammalian species endemic to the Carpathian Mountains. -
A-Nadachowski.Vp:Corelventura
Acta zoologica cracoviensia, 50A(1-2): 67-72, Kraków, 31 May, 2007 The taxonomic status of Schelkovnikov’s Pine Vole Microtus schelkovnikovi (Rodentia, Mammalia) Adam NADACHOWSKI Received: 11 March, 2007 Accepted: 20 April, 2007 NADACHOWSKI A. 2007. The taxonomic status of Schelkovnikov’s Pine Vole Microtus schelkovnikovi (Rodentia, Mammalia). Acta zoologica cracoviensia, 50A(1-2): 67-72. Abstract. A comparison of morphological and karyological traits as well as an analysis of ecological preferences and the distribution pattern support the opinion that Microtus schelkovnikovi does not belong to subgenus Terricola and is the sole member of its own taxonomic species group. Hyrcanicola subgen. nov. comprises a single species Microtus (Hyrcanicola) schelkovnikovi, an endemic and relict form, inhabiting the Hyrcanian broad-leaved forest zone of Azerbaijan and Iran. Key-words: Systematics, new taxon, voles, Hyrcanian forests. Adam NADACHOWSKI, Institute of Systematics and Evolution of Animals, Polish Acad- emy of Sciences, S³awkowska 17, 31-016 Kraków, Poland. E-mail: [email protected] I. INTRODUCTION Schelkovnikov’s Pine Vole (Microtus schelkovnikovi SATUNIN, 1907) is one of the most enig- matic voles represented in natural history collections by only 45-50 specimens globally. This spe- cies was described by K. A. SATUNIN, on the basis of a single male specimen collected by A. B. SHELKOVNIKOV, July 6, 1906 near the village of Dzhi, in Azerbaijan (SATUNIN 1907). Next, 14 specimens from Azerbaijan, were found by KH.M.ALEKPEROV 50 years later in 1956 and 1957 (ALEKPEROV 1959). ELLERMAN (1948) described a new subspecies of Pine Vole Pitymys subterra- neus dorothea, on the basis of 3 females, collected by G. -
Plio-Pleistocene Biogeography of Italian Mainland Micromammals
Tassos Kotsakis1, Laura Abbazzi2, Chiara Angelone1, Patrizia Argenti3, Giancarlo Barisone1, Flaviano Fanfani2, Federica Marcolini4 & Federico Masini5 1 Università di Roma Tre 2 Università di Firenze 3 Università di Perugia 4 Università di Pisa 5 Università di Palermo Plio-Pleistocene biogeography of Italian mainland micromammals Kotsakis, T., Abbazzi, L., Angelone, C., Argenti, P., Barisone, G., Fanfani, F., Marcolini, F. & Masini, F., 2003 - Plio-Pleistocene biogeography of Italian mainland micromammals - in: Reumer, J.W.F. & Wessels, W. (eds.) - DISTRIBUTION AND MIGRATION OF TERTIARY MAMMALS IN EURASIA. A VOLUME IN HONOUR OF HANS DE BRUIJN - DEINSEA 10: 313-342 [ISSN 0923-9308] Published 1 December 2003 The analysis of the distribution of small mammals in the Italian mainland during the Plio- Pleistocene and their immigration in the Peninsula indicates the presence of many species of orien- tal European origin, a few iberoccitanic elements and some emdemic species. The Italian penin- sula belongs to a western Mediterranean bioprovince. The north-eastern region of Italy is a transi- tional biogeographical zone between this province and the central European and Balcanic areas. Correspondence: Tassos Kotsakis, Chiara Angelone & Giancarlo Barisone: Università di Roma Tre, Dipartimento di Scienze Geologiche, Largo San Leonardo Murialdo 1, Roma 00146, Italy, e- mail [email protected]; [email protected]; Laura Abbazzi & Flaviano Fanfani, Università di Firenze, Dipartimento di Scienze della Terra, Via La Pira 4, 50121 Firenze, Italy, -
Sex Chromosome Translocations
RESEARCH ARTICLE Rapid Karyotype Evolution in Lasiopodomys Involved at Least Two Autosome ± Sex Chromosome Translocations Olga L. Gladkikh1☯, Svetlana A. Romanenko1,2☯*, Natalya A. Lemskaya1, Natalya A. Serdyukova1, Patricia C. M. O'Brien3, Julia M. Kovalskaya4, Antonina V. Smorkatcheva5, Feodor N. Golenishchev6, Polina L. Perelman1,2, Vladimir A. Trifonov1,2, Malcolm A. Ferguson-Smith3, Fengtang Yang7, Alexander S. Graphodatsky1,2 a11111 1 Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia, 2 Novosibirsk State University, Novosibirsk, Russia, 3 Cambridge Resource Centre for Comparative Genomics, Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom, 4 Severtzov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia, 5 Department of Vertebrate Zoology, Saint Petersburg State University, Saint Petersburg, Russia, 6 Zoological Institute, Russian Academy of Sciences, Saint Petersburg, Russia, 7 Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom ☯ These authors contributed equally to this work. OPEN ACCESS * [email protected] Citation: Gladkikh OL, Romanenko SA, Lemskaya NA, Serdyukova NA, O'Brien PCM, Kovalskaya JM, et al. (2016) Rapid Karyotype Evolution in Abstract Lasiopodomys Involved at Least Two Autosome ± Sex Chromosome Translocations. PLoS ONE 11 The generic status of Lasiopodomys and its division into subgenera Lasiopodomys (L. man- (12): e0167653. doi:10.1371/journal. pone.0167653 darinus, L. brandtii) and Stenocranius (L. gregalis, L. raddei) are not generally accepted because of contradictions between the morphological and molecular data. To obtain cyto- Editor: Igor V. Sharakhov, Virginia Tech, UNITED STATES genetic evidence for the Lasiopodomys genus and its subgenera and to test the autosome to sex chromosome translocation hypothesis of sex chromosome complex origin in L.