Chromosomes of five artiodactyl mammals

Chandra, H. Sharat; Hungerford, David A.; Wagner, Joyce; Snyder, Robert L.

doi:10.1007/bf00343646

Cited by 24 publications

(12 citation statements)

References 7 publications

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“…Our analysis of cytotype A is consistent with earlier reports by Chandra et al [1967], Seluja et al [1985], Benirschke and Kumamoto [1987], Ryder et al [1989] and Kumamoto [1990Kumamoto [ , 1994 all of whom document a 2n = 46, FN = 48 chromosomal complement. However, the mo- …”

Section: Discussionsupporting

confidence: 82%

“…For example, Chandra et al [1967] reported a 2n = 46, FN = 48 karyotype for M. kirkii originating from East Africa (housed in the Philadelphia Zoo collection) whose karyotype included a single pair of large submetacentric chromosomes. In contrast, Platt and Soukup [1977] recorded a female Kirk's dik-dik (origin unknown and held in the Cincinnati Zoo) to have 2n = 48, FN = 52, but in this instance the karyotype comprised 2 pairs of metacentrics, the remaining chromosomes being acrocentric.…”

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confidence: 99%

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Cytotypes of Kirk’s Dik-Dik (Madoqua kirkii,Bovidae) Show Multiple Tandem Fusions

Černohorská

Kubı́čková

Váhala³

et al. 2010

Cytogenet Genome Res

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Madoqua kirkii, a miniature African antelope, is noted for extensive chromosomal variation that has been categorized in four distinct cytotypes (A–D). In this investigation, we analyzed the A cytotype (2n = 46, FN = 48) using a suite of molecular cytogenetic approaches that entailed (i) whole chromosome and subchromosomal painting by fluorescence in situ hybridization (FISH), (ii) the study of Madoqua centromeric-specific DNA derived from pooled DNA obtained from the centromeric regions of the acrocentric chromosomes, and (iii) DNA from the telomere:centromere junctions of tandemly fused chromosomes. DNA from these sources was used to probe for the persistence of interstitial satellite DNA and residual centromeric sequences in the tandem and centric fusion junctions by PCR and FISH. The analyses show centromeric sequences at two of the six tandem fusion junctions. These data, and those of hybrid specimens (A × B cytotypes) in conjunction with published information permitted an interpretation of the probable sequence of chromosomal rearrangements among the M. kirkii cytotypes. We discuss the findings in the context of chromosomal evolution in these antelopes, and the implications that these hold for ex-situ breeding programs of the species.

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Section: Discussionsupporting

confidence: 82%

mentioning

confidence: 99%

Cytotypes of Kirk’s Dik-Dik (Madoqua kirkii,Bovidae) Show Multiple Tandem Fusions

Černohorská

Kubı́čková

Váhala³

et al. 2010

Cytogenet Genome Res

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“…Some species of the Cervidae have been cytogenetically investigated (Benirschke et al 1963;Chandra et al 1967;Wurster and Benirschke 1967a, b ;Fraccaro et al 1968;Sundt 1968, 1969;Omura and Fukumoto 1983). Within those species, it has been shown that the following two species, C. lama (the fallow deer) and C. elaphus (the red deer) have the same chromosome number and karyotype (2n=68, Wurster and Benirschke 1967a, b ;Gustavsson and Sundt 1968) as that of C. yesoensis Heude.…”

Section: Results and Remarksmentioning

confidence: 99%

A chromosome study of the Ezo deer (Cervus yesoensis heude).

Miyake

Abe

Kosuge

et al. 1983

Proceedings of the Japan Academy. Ser. B: Physical and Biologic

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“…), the Manchurian sika deer (Cervits nippon hortnlornm Swinhoe), the fallow deer (Damn damn), the axis deer (A xis axis) and the Chinese water deer (Hydropotes inermis). The same applies to the X chromosome of the sambar (Cervits nnicolor), as described by Chandra et al (1967). However, Dr. K. Benirschke tells us that he found unusually large sex chro mosomes in the Sitatunga deer from Africa as well as in the blackbuck from India (W urster et al, 1968).…”

Section: Discussionmentioning

confidence: 95%

Chronology of DNA replication in the sex chromosomes of the reindeer (Rangifer tarandus L.)

Fraccaro¹,

Gustavsson²,

Hultén³

et al. 1968

Cytogenet Genome Res

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The chromosomes of the reindeer (2n = 70) were studied with special reference to the chronology of DNA replication of the sex chromosomes. The X chromosome was metacentric and nearly of the duplicate type, being about 9% in length of the total complement. All the other chromosomes, including the Y, were acrocentric except one submetacentric pair. The X and Y chromosomes were apparently terminally associated at first meiotic metaphase in the male. A single, rather large chromocenter was observed in the majority of cultured female cells. The male cells were predominately negative but occasionally demonstrated a somewhat smaller, distinct chromocenter. Autoradiography showed that in the female cultured cells the ‘one entire X plus half of the other X heavily labelled’ pattern was conspicuously present at the end of the S period. A quantitative analysis indicated that one hour from the end of the S period both X chromosomes were uniformely labelled. One X was still completely labelled, while one arm of the other was not 45 min before the end of S, and at 30 min only one arm in each X chromosome was labelled. The two X chromosomes then seemed to be slightly asynchronous until the very end of S. In the male cells semiquantitative analysis indicated that one arm of the X and the entire Y chromosome were synchronous in terminating DNA synthesis.

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Chromosomes of five artiodactyl mammals

Cited by 24 publications

References 7 publications

Cytotypes of Kirk’s Dik-Dik (<i>Madoqua kirkii</i>,Bovidae) Show Multiple Tandem Fusions

Cytotypes of Kirk’s Dik-Dik (<i>Madoqua kirkii</i>,Bovidae) Show Multiple Tandem Fusions

A chromosome study of the Ezo deer (Cervus yesoensis heude).

Chronology of DNA replication in the sex chromosomes of the reindeer (<i>Rangifer tarandus</i> L.)

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