New PDF release: An Atlas of Mammalian Chromosomes: Volume 2

By T. C. Hsu, Kurt Benirschke (auth.)

ISBN-10: 1461564247

ISBN-13: 9781461564249

ISBN-10: 1468479946

ISBN-13: 9781468479942

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Chromosomes of the white-tailed rat (Mystromys albicaudatus, Wagner, 1841). S. Afr. J. Sci. 21:143, 1954. : Mystromys albicaudatus (The African white-tailed rat) as a laboratory species. Lab. Animal Care 11:180, 1967. Order: Family: RODENTIA CRICETIDAE Mystromys albicaudatus (White-tailed rat) 2n=32 x y xX Volume 2, Folio 60, 1968 Order: RODENTIA Family: CRICETIDAE Neotoma albigula (White-throated wood rat) 2n = 52 Volume 2, Folio 61, 1968 Order: RODENTIA Family: CRICETIDAE Neotoma albigula (White-throated wood rat) 2n=52 AUTOSOMES: 4 Large subtelocentrics 4 Small subtelocentrics 42 Acrocentrics or telocentrics of varying sizes SEX CHROMOSOMES: X Large submetacentric Y Medium-sized subtelocentric Identification of the sex elements is unequivocal.

Order: CHIROPTERA Family: VESPERTILIONIDAE Myotis grisescens (Gray myotis) 2n=44 • XY XX Volume 2, Folio 57, 1968 Order: RODENTIA Family: HETEROMYIDAE Perognathus penicillatus (Desert pocket mouse) 2n = 46 Volume 2, Folio 58, 1968 Order: RODENTIA Family: HETEROMYIDAE Perognathus penicillatus (Desert pocket mouse) 2n=46 AUTOSOMES: 10 Large metacentrics and submetacentrics 2 Small subtelocentrics 32 Acrocentrics or telocentrics of varying sizes, 2 of which are minutes SEX CHROMOSOMES: X Medium-sized submetacentric Y Small acrocentric The karyotypes presented here are gifts of Mr.

James T. Mascarello, the karyotype of Neotoma albigula appears rather stable except the Y chromosome which varies in size. Intraspecific variation therefore exists in this species. Order: Family: RODENTIA CRICETIDAE Neotoma albigula (White-throated wood rat) 2n=52 x y , x X Volume 2, Folio 61, 1968 Order: RODENTIA Family: CRICETIDAE N eotoma micropus (Southern Plains wood rat) 2n = 52 Volume 2, Folio 62, 1968 Order: RODENTIA Family: CRICETIDAE Neotoma micropus (Southern Plains wood rat) 2n=52 AUTOSOMES: 2 Large submetacentrics 4 Small subtelocentrics 44 Acrocentrics or telocentrics of varying sizes SEX CHROMOSOMES: X Large subtelocentric Y Acrocentric Identification of the X chromosome is unequivocal, but the Y chromosome is not distinguishable from the two smallest autosomes.

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An Atlas of Mammalian Chromosomes: Volume 2 by T. C. Hsu, Kurt Benirschke (auth.)


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