Karyotype relationships between distantly related marsupials from South America and Australia

W. Rens; P. C.M. O'Brien; F. Yang; N. Solanky; P. Perelman; A. S. Graphodatsky; M. W.J. Ferguson; M. Svartman; A. A. De Leo; J. A.M. Graves; M. A. Ferguson-Smith

doi:10.1023/A:1016646629889

Karyotype relationships between distantly related marsupials from South America and Australia

W. Rens^*, P. C.M. O'Brien, F. Yang, N. Solanky, P. Perelman, A. S. Graphodatsky, M. W.J. Ferguson, M. Svartman, A. A. De Leo, J. A.M. Graves, M. A. Ferguson-Smith

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

Reciprocal chromosome painting and G-banding were used to compare the karyotypes of three Australian marsupials (Sminthopsis crassicaudata, Macropus eugenii, Trichosurus vulpecula) and one South American marsupial (Monodelphis domestica). The results revealed only a limited number of rearrangements between these species and that the four karyotypes can be described as different combinations of fifteen conserved segments. Five chromosomes are totally conserved between M. domestica (pairs 1, 2, 5, 8 and the X) and the presumed 2n = 14 Australian ancestral karyotype, while M. domestica pairs 3 and 6 and 4 and 7 would have been involved in fusion/fission rearrangements. Chromosome comparisons are presented in a chromosome homology map. Although the species studied diverged 70 million years ago, the karyotype of Monodelphis domestica is highly conserved in relation to those of Australian marsupials.

Original language	English
Pages (from-to)	301-308
Number of pages	8
Journal	Chromosome Research
Volume	9
Issue number	4
DOIs	https://doi.org/10.1023/A:1016646629889
Publication status	Published - 2001
Externally published	Yes

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title = "Karyotype relationships between distantly related marsupials from South America and Australia",

abstract = "Reciprocal chromosome painting and G-banding were used to compare the karyotypes of three Australian marsupials (Sminthopsis crassicaudata, Macropus eugenii, Trichosurus vulpecula) and one South American marsupial (Monodelphis domestica). The results revealed only a limited number of rearrangements between these species and that the four karyotypes can be described as different combinations of fifteen conserved segments. Five chromosomes are totally conserved between M. domestica (pairs 1, 2, 5, 8 and the X) and the presumed 2n = 14 Australian ancestral karyotype, while M. domestica pairs 3 and 6 and 4 and 7 would have been involved in fusion/fission rearrangements. Chromosome comparisons are presented in a chromosome homology map. Although the species studied diverged 70 million years ago, the karyotype of Monodelphis domestica is highly conserved in relation to those of Australian marsupials.",

keywords = "Chromosome homology, Chromosome painting, Macropus eugenii, Marsupials, Monodelphis domestica, Sminthopsis crassicaudata, Trichosurus vulpecula",

author = "W. Rens and O'Brien, {P. C.M.} and F. Yang and N. Solanky and P. Perelman and Graphodatsky, {A. S.} and Ferguson, {M. W.J.} and M. Svartman and {De Leo}, {A. A.} and Graves, {J. A.M.} and Ferguson-Smith, {M. A.}",

year = "2001",

doi = "10.1023/A:1016646629889",

language = "English",

volume = "9",

pages = "301--308",

journal = "Chromosome Research",

issn = "0967-3849",

publisher = "Springer Nature",

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T1 - Karyotype relationships between distantly related marsupials from South America and Australia

AU - Rens, W.

AU - O'Brien, P. C.M.

AU - Yang, F.

AU - Solanky, N.

AU - Perelman, P.

AU - Graphodatsky, A. S.

AU - Ferguson, M. W.J.

AU - Svartman, M.

AU - De Leo, A. A.

AU - Graves, J. A.M.

AU - Ferguson-Smith, M. A.

PY - 2001

Y1 - 2001

N2 - Reciprocal chromosome painting and G-banding were used to compare the karyotypes of three Australian marsupials (Sminthopsis crassicaudata, Macropus eugenii, Trichosurus vulpecula) and one South American marsupial (Monodelphis domestica). The results revealed only a limited number of rearrangements between these species and that the four karyotypes can be described as different combinations of fifteen conserved segments. Five chromosomes are totally conserved between M. domestica (pairs 1, 2, 5, 8 and the X) and the presumed 2n = 14 Australian ancestral karyotype, while M. domestica pairs 3 and 6 and 4 and 7 would have been involved in fusion/fission rearrangements. Chromosome comparisons are presented in a chromosome homology map. Although the species studied diverged 70 million years ago, the karyotype of Monodelphis domestica is highly conserved in relation to those of Australian marsupials.

AB - Reciprocal chromosome painting and G-banding were used to compare the karyotypes of three Australian marsupials (Sminthopsis crassicaudata, Macropus eugenii, Trichosurus vulpecula) and one South American marsupial (Monodelphis domestica). The results revealed only a limited number of rearrangements between these species and that the four karyotypes can be described as different combinations of fifteen conserved segments. Five chromosomes are totally conserved between M. domestica (pairs 1, 2, 5, 8 and the X) and the presumed 2n = 14 Australian ancestral karyotype, while M. domestica pairs 3 and 6 and 4 and 7 would have been involved in fusion/fission rearrangements. Chromosome comparisons are presented in a chromosome homology map. Although the species studied diverged 70 million years ago, the karyotype of Monodelphis domestica is highly conserved in relation to those of Australian marsupials.

KW - Chromosome homology

KW - Chromosome painting

KW - Macropus eugenii

KW - Marsupials

KW - Monodelphis domestica

KW - Sminthopsis crassicaudata

KW - Trichosurus vulpecula

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U2 - 10.1023/A:1016646629889

DO - 10.1023/A:1016646629889

M3 - Article

SN - 0967-3849

VL - 9

SP - 301

EP - 308

JO - Chromosome Research

JF - Chromosome Research

IS - 4

ER -

Karyotype relationships between distantly related marsupials from South America and Australia

Abstract

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