Cytogenetic studies of the somatic and germ-line cells in sand rats (Psammomys obesus)

Pen Ming L. Ming; Jacqueline Whang-Peng

doi:10.1007/BF01212250

Cytogenetic studies of the somatic and germ-line cells in sand rats (Psammomys obesus)

Pen Ming L. Ming, Jacqueline Whang-Peng

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

1 Citation (Scopus)

Abstract

The chromosomes in both somatic and germ-line cells of the sand rat (Psammomys obesus) were studied. The diploid number of chromosomes was 48. The autosomes consisted of 4 pairs of large metacentric chromosomes, 10 pairs of medium to small metacentric and submetacentric chromosomes and 9 pairs of telocentric chromosomes. The X chromosomes in both sexes were the largest of the entire complement. The Y chromosome was a mediumsized metacentric chromosome. The two X chromosomes in the female cells were similar in size and morphology but differed in the DNA replication pattern. Studies of the meiotic chromosomes in the male germ-line cells revealed 23 autosome bivalents and the sex chromosomes either as an XY bivalent or X and Y univalents.

Original language	English
Pages (from-to)	361-365
Number of pages	5
Journal	Diabetologia
Volume	6
Issue number	3
DOIs	https://doi.org/10.1007/BF01212250
Publication status	Published - Jun 1 1970
Externally published	Yes

Keywords

autoradiography
cytogenetics
diabetes
karyotype
meiotic cromosomes
mitotic chromosomes
Psammomys obesus
Sand rat

ASJC Scopus subject areas

Internal Medicine
Endocrinology, Diabetes and Metabolism

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/BF01212250

Cite this

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title = "Cytogenetic studies of the somatic and germ-line cells in sand rats (Psammomys obesus)",

abstract = "The chromosomes in both somatic and germ-line cells of the sand rat (Psammomys obesus) were studied. The diploid number of chromosomes was 48. The autosomes consisted of 4 pairs of large metacentric chromosomes, 10 pairs of medium to small metacentric and submetacentric chromosomes and 9 pairs of telocentric chromosomes. The X chromosomes in both sexes were the largest of the entire complement. The Y chromosome was a mediumsized metacentric chromosome. The two X chromosomes in the female cells were similar in size and morphology but differed in the DNA replication pattern. Studies of the meiotic chromosomes in the male germ-line cells revealed 23 autosome bivalents and the sex chromosomes either as an XY bivalent or X and Y univalents.",

keywords = "autoradiography, cytogenetics, diabetes, karyotype, meiotic cromosomes, mitotic chromosomes, Psammomys obesus, Sand rat",

author = "Ming, {Pen Ming L.} and Jacqueline Whang-Peng",

year = "1970",

month = jun,

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doi = "10.1007/BF01212250",

language = "English",

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journal = "Diabetologia",

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T1 - Cytogenetic studies of the somatic and germ-line cells in sand rats (Psammomys obesus)

AU - Ming, Pen Ming L.

AU - Whang-Peng, Jacqueline

PY - 1970/6/1

Y1 - 1970/6/1

N2 - The chromosomes in both somatic and germ-line cells of the sand rat (Psammomys obesus) were studied. The diploid number of chromosomes was 48. The autosomes consisted of 4 pairs of large metacentric chromosomes, 10 pairs of medium to small metacentric and submetacentric chromosomes and 9 pairs of telocentric chromosomes. The X chromosomes in both sexes were the largest of the entire complement. The Y chromosome was a mediumsized metacentric chromosome. The two X chromosomes in the female cells were similar in size and morphology but differed in the DNA replication pattern. Studies of the meiotic chromosomes in the male germ-line cells revealed 23 autosome bivalents and the sex chromosomes either as an XY bivalent or X and Y univalents.

AB - The chromosomes in both somatic and germ-line cells of the sand rat (Psammomys obesus) were studied. The diploid number of chromosomes was 48. The autosomes consisted of 4 pairs of large metacentric chromosomes, 10 pairs of medium to small metacentric and submetacentric chromosomes and 9 pairs of telocentric chromosomes. The X chromosomes in both sexes were the largest of the entire complement. The Y chromosome was a mediumsized metacentric chromosome. The two X chromosomes in the female cells were similar in size and morphology but differed in the DNA replication pattern. Studies of the meiotic chromosomes in the male germ-line cells revealed 23 autosome bivalents and the sex chromosomes either as an XY bivalent or X and Y univalents.

KW - autoradiography

KW - cytogenetics

KW - diabetes

KW - karyotype

KW - meiotic cromosomes

KW - mitotic chromosomes

KW - Psammomys obesus

KW - Sand rat

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Cytogenetic studies of the somatic and germ-line cells in sand rats (Psammomys obesus)

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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