Meiotic analysis of XX/XY and neo-XX/XY sex chromosomes in Phyllostomidae by cross-species chromosome painting revealing a common chromosome 15-XY rearrangement in Stenodermatinae

Noronha, Renata Coelho Rodrigues; Nagamachi, Cleusa Yoshiko; O’Brien, Patricia C.; Ferguson‐Smith, Malcolm A.; Pieczarka, Júlio César

doi:10.1007/s10577-010-9146-7

Cited by 15 publications

(8 citation statements)

References 27 publications

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“…Considering that all species of the genus Micronycteris, except Micronycteris hirsuta, have a bi-armed X chromosome, it is likely that the acrocentric shape of the X is an autapomorphic character of this species, as previously suggested by Rodrigues et al [38] and Noronha et al [39]. In contrast, the primitive condition of X for phyllostomids would be a bi-armed form as found in Macrotus waterhousii , Phyllostomus discolor and P. hastatus [28,29,38,40].…”

Section: Discussionmentioning

confidence: 65%

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon

et al. 2013

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BackgroundThe genus Micronycteris is a diverse group of phyllostomid bats currently comprising 11 species, with diploid number (2n) ranging from 26 to 40 chromosomes. The karyotypic relationships within Micronycteris and between Micronycteris and other phyllostomids remain poorly understood. The karyotype of Micronycteris hirsuta is of particular interest: three different diploid numbers were reported for this species in South and Central Americas with 2n = 26, 28 and 30 chromosomes. Although current evidence suggests some geographic differentiation among populations of M. hirsuta based on chromosomal, morphological, and nuclear and mitochondrial DNA markers, the recognition of new species or subspecies has been avoided due to the need for additional data, mainly chromosomal data.ResultsWe describe two new cytotypes for Micronycteris hirsuta (MHI) (2n = 26 and 25, NF = 32), whose differences in diploid number are interpreted as the products of Robertsonian rearrangements. C-banding revealed a small amount of constitutive heterochromatin at the centromere and the NOR was located in the interstitial portion of the short arm of a second pair, confirmed by FISH. Telomeric probes hybridized to the centromeric regions and weakly to telomeric regions of most chromosomes. The G-banding analysis and chromosome painting with whole chromosome probes from Carollia brevicauda (CBR) and Phyllostomus hastatus (PHA) enabled the establishment of genome-wide homologies between MHI, CBR and PHA.ConclusionsThe karyotypes of Brazilian specimens of Micronycteris hirsuta described here are new to Micronycteris and reinforce that M. hirsuta does not represent a monotypic taxon. Our results corroborate the hypothesis of karyotypic megaevolution within Micronycteris, and strong evidence for this is that the entire chromosome complement of M. hirsuta was shown to be derivative with respect to species compared in this study.

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Section: Discussionmentioning

confidence: 65%

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon

et al. 2013

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“…However, additionally to the Mazama genus, there are other reports of sexautosome translocations among Cervidae family, including muntjacs (Muntiacus muntjak and M. crinifrons) and the tufted deer ( Elaphodus cephalophus) [Wurster and Benirschke, 1970;Shi et al, 1991;Yang et al, 1995;Cao et al, 2005]. This type of chromosomal rearrangement is also described in bats, rodents, bovids, and primates [Ratomponirina et al, 1986;Dobigny et al, 2004;Solari and Rahn, 2005;Noronha et al, 2010;Veyrunes et al, 2014;Vozdova et al, 2016].…”

Section: Discussionmentioning

confidence: 90%

Intrapopulation Chromosomal Polymorphism in <b><i>Mazama gouazoubira</i></b> (Cetartiodactyla; Cervidae): The Emergence of a New Species?

Valeri

Tomazella

Duarte³

2018

Cytogenet Genome Res

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Mazama gouazoubira is a small deer species widely distributed in South America. Previous studies have shown that this species presents intraspecific chromosomal polymorphisms, which could affect fertility due to the effects of chromosomal rearrangements on gamete formation. Important aspects regarding the karyotype evolution of this species and the genus remain undefined due to the lack of information concerning the causes of this chromosomal variation. Nineteen individuals belonging to the Mazama gouazoubira population located in the Pantanal were cytogenetically evaluated. Among the individuals analyzed, 9 had B chromosomes and 5 carried a heterozygous centric fusion (2n = 69 and FN = 70). In 3 individuals, the fusion occurred between chromosomes X and 16, in 1 individual between chromosomes 7 and 21, and in another individual between chromosomes 4 and 16. These striking polymorphisms could be explained by several hypotheses. One is that the chromosome rearrangements in this species are recent and not fixed in the population yet, and another hypothesis is that they represent a balanced polymorphism and that heterozygotes have an adaptive advantage. On the other hand, these polymorphisms may negatively influence fertility and raise questions about sustainability or reproductive isolation of the population.

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“…All karyotypes already described for large Artibeus have a XY1Y2 system, but there is variation in Dermanura : toltecus and aztecus have a XY1Y2 system (Baker, 1973 [ 57 ]) while watsoni and phaeotis have neo-XY (Baker, 1967 [ 58 ]; Hsu et al 1968 [ 59 ]). A. cinereus has a XY1Y2 system in Central America (Baker, 1973 [ 57 ]) and neo-XY in South America (Souza & Araujo, 1990 [ 45 ]; Noronha et al 2010 [ 60 ]). The neo-XY in Dermanura represents a third fusion between the Y and 15.…”

Section: Discussionmentioning

confidence: 99%

Chromosomal phylogeny of Vampyressine bats (Chiroptera, Phyllostomidae) with description of two new sex chromosome systems

et al. 2016

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BackgroundThe subtribe Vampyressina (sensu Baker et al. 2003) encompasses approximately 43 species and seven genera and is a recent and diversified group of New World leaf-nosed bats specialized in fruit eating. The systematics of this group continues to be debated mainly because of the lack of congruence between topologies generated by molecular and morphological data. We analyzed seven species of all genera of vampyressine bats by multidirectional chromosome painting, using whole-chromosome-painting probes from Carollia brevicauda and Phyllostomus hastatus. Phylogenetic analyses were performed using shared discrete chromosomal segments as characters and the Phylogenetic Analysis Using Parsimony (PAUP) software package, using Desmodontinae as outgroup. We also used the Tree Analysis Using New Technology (TNT) software.ResultsThe result showed a well-supported phylogeny congruent with molecular topologies regarding the sister taxa relationship of Vampyressa and Mesophylla genera, as well as the close relationship between the genus Chiroderma and Vampyriscus.ConclusionsOur results supported the hypothesis that all genera of this subtribe have compound sex chromosome systems that originated from an X-autosome translocation, an ancestral condition observed in the Stenodermatinae. Additional rearrangements occurred independently in the genus Vampyressa and Mesophylla yielding the X1X1X2X2/X1X2Y sex chromosome system. This work presents additional data supporting the hypothesis based on molecular studies regarding the polyphyly of the genus Vampyressa and its sister relationship to Mesophylla.Electronic supplementary materialThe online version of this article (doi:10.1186/s12862-016-0689-x) contains supplementary material, which is available to authorized users.

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Meiotic analysis of XX/XY and neo-XX/XY sex chromosomes in Phyllostomidae by cross-species chromosome painting revealing a common chromosome 15-XY rearrangement in Stenodermatinae

Cited by 15 publications

References 27 publications

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon

Intrapopulation Chromosomal Polymorphism in <b><i>Mazama gouazoubira</i></b> (Cetartiodactyla; Cervidae): The Emergence of a New Species?

Chromosomal phylogeny of Vampyressine bats (Chiroptera, Phyllostomidae) with description of two new sex chromosome systems

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