G-band patterns of six species of mice belonging to subgenus &lt;i&gt;Mus&lt;/i&gt;

Hsü, T. C.; Markvong, Amara; Marshall, Joe T.

doi:10.1159/000130860

Cited by 26 publications

(15 citation statements)

References 3 publications

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“…No differences were found between the banding pattern of Malagasy mice and previous results published by Hsu et al (1978) for several species (domesticus, molossinus, caroli, cervicolor, cookii, booduga) belonging to subgenus Mus which has a karyotype known to be highly conservative; the presence of an HSR (homogeneously staining region) is not detected in Malagasy mice, but has been observed in different 'domesticus' populations by Hü bner et al (1994).…”

Section: Discussioncontrasting

confidence: 44%

Evidence for a mitochondrial lineage originating from the Arabian peninsula in the Madagascar house mouse (Mus musculus)

et al. 2002

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Various subspecies of the house mouse (Mus musculus sensu lato) are known to have contributed to its worldwide expansion. However, the origin of mice on some larger islands such as Madagascar has remained unknown, with several sources being possible. In order to classify the Malagasy house mouse, individuals were trapped in 13 different localities distributed throughout the island. For 33 individuals the control region (D-Loop) of the mitochondrial DNA was partially sequenced and 21 males were typed for a Zfy-2 polymorphism of the Y chromosome. Malagasy mt DNA lineages constitute a narrow monophyletic group which sug-

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Section: Discussioncontrasting

confidence: 44%

Evidence for a mitochondrial lineage originating from the Arabian peninsula in the Madagascar house mouse (Mus musculus)

et al. 2002

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“…Chromo somal variations within the genus Sigmodon is characterized by tandem and centric fu sions (E lder, 1980). In the genus Mus, the Old World equivalent of Peromyscus, some species have maintained identical karyotypes (Hsu et al, 1978), while in M. musculus, a minimum of 27 centric fusions have been established with no inversions or heterochromatic additions (Cappana et al, 1976). From these examples, one can see that the prob ability of such variations in frequency of certain types of rearrangements in rodents is not easily explained by stochastic pro cesses, and karyotypic orthoselection, as defined by W hitp.…”

Section: Discussionmentioning

confidence: 99%

An assessment of the nature of chromosomal rearrangements in 18 species of <i>Peromyscu</i><i>s</i> (Rodentia: Cricetidae)

Robbins¹,

Baker²

1981

Cytogenet Genome Res

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G- and C-banded karyotypes from 9 previously unstudied species of Peromyscus are described and compared to the 9 species described in the literature. Additional new data are presented for P. eremicus. A hypothetical evolutionary tree for the 18 species was constructed based on the assumption that, where possible, shared chromosomal rearrangements became established in a common ancestor. A minimum of 60 chromosomal rearrangements (34 heterochromatic additions and 26 pericentric inversions) were needed to construct the most parsimonious tree. Seven of the 18 species have heterochromatin in noncentromeric areas. Three times as many inversions have been identified in the 11 largest pairs as have been observed in the 12 smallest pairs. Peromyscine rodents are characterized by a pattern of chromosomal variation quite distinct from that described for other rodent genera, such as Sigmodon and Mus. Karyotypic orthoselection in rodents appears to be relatively common in closely related species.

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“…Nevertheless, the inversion system on chromosome 17 may provide a unique opportunity to study the phenomenon of inversion polymorphisms in natural populations of house mice. Classical cytogenetic investigations failed to detect these inversions (38,39) and have been generally unsuccessful in discovering rearrangements among species of Mus (40). However, inversions have been visualized by comparative in situ hybridizations with probes for loci within the proximal and distal inversions (41).…”

mentioning

confidence: 99%

Evolution of mouse chromosome 17 and the origin of inversions associated with t haplotypes.

Hammer

Schimenti

Silver

1989

Proc. Natl. Acad. Sci. U.S.A.

176

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Mouse t haplotypes are variant forms of chromosome 17 that exist at high frequendes in worldwide populations of several species of house mouse. They are known to differ from wild-type chromosomes with respect to two relative inversions referred to as proximal and distal. An untested assumption has been that these two inversions originated in the chromosomal lineage lading to present-day t haplotypes. To investigate the evolutionary origins of these inversions and the possibility of additional inversions, interspecific crosses were performed between Mus spretus or Mus abbotti and laboratory strains of Mus domesticus that carried wild-type and t haplotypes forms of chromosome 17. The results provide evidence for the existence of two additional nonoverlapping inversions-one between the proximal and distal inversions and one between the centromere and the proximal inversion. These four inversions span nearly the entire region of t haplotype recombination suppression. Considering the distribution of these inversions among the species studied as well as the organization of the D17Leh66 family of DNA elements, we infer that the proximal inversion occurred on the lineage leading to the common ancestor ofM. domesticus and M. abbott, and that the other three inversions occurred on the separate lineage leading to present-day t haplotypes.Alternative models for the evolution of t haplotypes are discussed in light of these fndings.Two forms of the proximal region of mouse chromosome 17 are found in natural populations of house mice. One form is considered wild type (+) and the other is known as a t haplotype (t) (1, 2). A t haplotype is able to propagate itself at the expense of its wild-type meiotic partner, in a clear departure from Mendel's first law. The integrity of a complete t haplotype is maintained by a suppression of recombination along its 15-centimorgan (cM) length from the DI7Leh48 locus to the H-2 complex (Fig. 1). These chromosomes have been identified in several house mouse species including Mus domesticus, Mus musculus (3), Mus molossinus (4), and Mus bactrianus (unpublished data). In surveys of M. domesticus from many geographical locations, t haplotypes have been found at frequencies between 10%o and 20%1o, even though they carry genes that cause homozygous male sterility, and some also carry embryonic lethal mutations (5, 6).The major selective force driving t haplotypes in populations is the high ratio of transmission from +/t heterozygous males (7). Genetic experiments have demonstrated the existence of at least five independent loci involved in this transmission ratio distortion (TRD) (refs. 8 and 9; see Fig. 1). In general, only t haplotypes with a complete set of TRD loci are transmitted at high ratios, and only high-ratio t haplotypes survive for significant periods of time in natural populations (7). Because the TRD loci are spread across a 15-cM chromosomal region, the continued presence of t haplotypes in populations depends as much on recombination suppression as on TRD.The discovery o...

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G-band patterns of six species of mice belonging to subgenus <i>Mus</i>

Abstract: The G-band patterns of six species and one subspecies in the subgenus Mus were compared. Other than the differences in the amount and distribution of C-bands, all species had the same bands.

Cited by 26 publications

References 3 publications

Evidence for a mitochondrial lineage originating from the Arabian peninsula in the Madagascar house mouse (Mus musculus)

Evidence for a mitochondrial lineage originating from the Arabian peninsula in the Madagascar house mouse (Mus musculus)

An assessment of the nature of chromosomal rearrangements in 18 species of <i>Peromyscu</i><i>s</i> (Rodentia: Cricetidae)

Evolution of mouse chromosome 17 and the origin of inversions associated with t haplotypes.

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