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Research Article
Comparative cytogenetics of two species of Dermanura (Chiroptera, Phyllostomidae) in Midwestern Brazil
expand article infoRicardo Firmino de Sousa, Paulo Cesar Venere, Karina de Cassia Faria
‡ Universidade Federal do Mato Grosso, Cuiabá, Brazil
Open Access

Abstract

Dermanura Gervais, 1856 is represented by small frugivorous bats of the Stenodermatinae subfamily. The taxonomy of this group presents controversies and has been subject to changes, especially since the morphological characters evaluated have left gaps that are difficult to fill regarding good species characterization. Previous studies performed in Dermanura cinerea Gervais, 1856 found that the karyotype of this species has a diploid number of chromosomes equal to 30 and 56 autosomal arms. The objective of the present study was to describe, for the first time, the karyotypes of the species Dermanura anderseni (Osgood, 1916) and Dermanura gnoma (Handley, 1987) based on classical cytogenetic markers. For both species, the diploid number found was 2n = 30 and NFa = 56. Two pairs of chromosomes showed markings of the nucleolus organizing regions (AgNORs) in the species D. anderseni and only one pair in D. gnoma, differing from what has already been described for D. cinerea. The two species analyzed here also showed differences in the sex chromosome system, with D. gnoma showing a neo-XY type system while in D. anderseni the classic XY sexual system was observed. In both species, visualization of the constitutive heterochromatin occurred in the pericentromeric region of all chromosomes, as well as in the short arms of the subtelocentric chromosomes. The present work represents an important expansion of karyotypic information for the subfamily Stenodermatinae, bringing chromosomal features that are possible to use in the taxonomic implications of the group.

Keywords

Bats, Stenodermatinae, Dermanura gnoma, Dermanura anderseni, karyotype

Introduction

Among bat families, Phyllostomidae Gray, 1825 is the most morphologically and ecologically diverse, with more than 200 species arranged in 60 genera and 11 subfamilies (Solari and Martinez-Arias 2014; Baker et al. 2016). The subfamily Stenodermatinae Gervais, 1856 is represented in Brazil by 13 genera and 35 species (Nogueira et al. 2014; Pereira et al. 2017). Some genera of this subfamily are complex regarding their phylogenetic relationship, as is the case of Artibeus Leach, 1821, for which several questions have been raised (Van-Den-Bussche et al. 1993; Hoofer et al. 2008). Owen (1991) divided this genus into three taxa based on morphological characters: Artibeus Leach, 1821 (species with large body), Dermanura Gervais, 1856 (species with small body) and Koopmania Owen, 1991 (with one representative: Artibeus concolor Peters, 1865, with intermediate body size). Through analyses of the mitochondrial gene cytochrome-b and satellite DNA sequences, Van-Den-Bussche et al. (1998) suggested that Artibeus and Dermanura are sister groups.

The genus Dermanura has 11 described species (Hoofer et al. 2008; Solari et al. 2009). Of these, four occur in Brazil: Dermanura anderseni (Osgood, 1916), Dermanura bogotensis (Andersen, 1906), Dermanura cinerea (Gervais, 1856) and Dermanura gnoma (Handley, 1987) (Nogueira et al. 2014). The taxonomy of this group presents controversies and has been subject to alterations based on the character set evaluated (Redondo et al. 2008). In general, species identification has been based on morphological and metric characteristics (skull, body size, forearm and weight measurements), which makes taxonomic identification and the establishment of phylogenetic relationships difficult (Sotero-Caio et al. 2017a).

With the advancement in molecular techniques, and cytogenetic approaches, the integrative analysis becomes important, since more robust proposals are provided to identify the group’s diversification and evolution patterns (Sotero-Caio et al. 2015; Tavares et al. 2015; Bassantes et al. 2020). Comparative karyotypic studies in bats, especially within Phyllostomidae, have indicated great examples of species with a high level of chromosomal reorganization, diverging from the ancestral species (Pieczarka et al. 2013; Sotero-Caio et al. 2017a, b).

However, knowledge about karyotype data is still scarce for some bat species, and little data has been published for species from South America. Recent studies have been complementing data on chromosomal banding for some species (Calixto et al. 2014; Corrêa and Bonvicino 2016; Sousa et al. 2017; Souza et al. 2017; Côrrea et al. 2017), with karyotype descriptions for species that do not present chromosomal data in the literature (Santos et al. 2002; Garcia and Pessôa 2010; Almeida et al. 2016, Gomes et al. 2016).

Even for many species of Chiroptera, which currently have a reasonable amount of karyotype data, some important gaps can be detected through a detailed data survey. These gaps highlight the importance of expanding chromosomal studies with bats in order to make the information available for the order more robust, especially regarding knowledge about Chiroptera’s chromosomal evolution (Marchesin and Morielle-Versute 2004; Garcia and Pessôa 2010; Sotero-Caio et al. 2017a).

In Dermanura, the only chromosome set ever described is for D. cinerea whose analyses revealed a diploid number of chromosomes equal to 30 and 56 autosomal arms (Santos and Souza 1998b; Noronha 2010). The present work aims to describe the karyotypes of the species Dermanura anderseni and Dermanura gnoma based on classic cytogenetic markers (conventional staining with Giemsa, C-banding and silver nitrate impregnation) in order to identify chromosomal morphology of these species and contribute to the cytogenetic knowledge of bat species.

Material and methods

Specimens were collected in the municipalities of Nova Xavantina (14°42'28.8"S, 52°21'03.9"W) and Chapada dos Guimarães (15°18'25.57"S, 55°49'06.33"W), both in the state of Mato Grosso – Brazil (Fig. 1), which presented two Cerrado Biome phytophysiognomies: (I) Cerradão, a forest type in the Central Brazilian Plateau, with close treetops and a plant community that presents a closed appearance, but with spacing between trees that allows sun to penetrate through and tree heights ranging from 10 to 15 m (Rizzini 1997). (II) Cerrado stricto sensu, which is composed of more spaced out, smaller, and twisted trees, providing the appearance of grasses and subshrubs with low vegetation prevailing (Rizzini 1997). Trees in these areas are usually 3 to 6 m high and can reach up to 10 m (Ribeiro and Walter 2008). Five specimens of Dermanura anderseni Osgood, 1916 were analyzed, three (2 females and 1 male) captured in the municipality of Nova Xavantina and two (1 male and 1 female) captured in Chapada dos Guimarães. For Dermanura gnoma Handley, 1987, two male specimens captured in Nova Xavantina were analyzed. Bats were captured with mist nets (9 × 3 m, with 16 mm mesh) set up from 18:00h to 00:00h in possible bat routes, which were inspected every 30 minutes. The animals were recorded and identified to species level following specialized bibliography (Vizotto and Taddei 1973; Gardner 2008; Reis et al. 2013; Nogueira et al. 2014; Reis et al. 2017). Both species have very evident white facial stripes, however, among other differences, they have different sizes (with forearm 38 to 40 mm in D. anderseni and 34 to 38 mm in D. gnoma) and different dental formulas (I2 / 2, C1 / 1, P2 / 2, M2 / 2 = 32 for D. anderseni and I2 / 2, C1 / 1, P2 / 2, M2 / 3 = 30 for D. gnoma). Specimens captured in Nova Xavantina were deposited in the scientific collection of the Laboratório de Genética at the Universidade do Estado de Mato Grosso Nova Xavantina campus under the following collection numbers: RM 216, 234, 302 (D. anderseni) and 257, 333 (D. gnoma) (License No. 18276-1 – IBAMA/SISBIO/MT) and specimens captured in Chapada dos Guimarães were deposited in the zoological collection of the Instituto de Biociências at the Universidade Federal de Mato Grosso, Cuiabá campus, under license no. 46359-1 – ICMBio/SISBIO/MT (UFMT-PNCG 863 and 866, D. anderseni).

Figure 1.

Capture locations of the species Dermanura anderseni and Dermanura gnoma 1 Nova Xavantina, in Cerradão and Cerrado stricto sensu areas and 2 Chapada dos Guimarães in a Cerrado stricto sensu area, Mato Grosso, Brazil.

Chromosomal preparations were obtained through direct bone marrow extraction, according to the procedure described in Morielle-Versute et al. (1996), with minor adjustments during routine work in the laboratory. To observe the metaphases, conventional staining with Giemsa was performed. The technique for visualizing constitutive heterochromatin (C-banding) was performed according to the protocol proposed by Sumner (1972); staining with propidium iodide and silver nitrate impregnation (AgNORs) followed Howell and Black (1980).

The slides with chromosomal preparations were analyzed using optical microscopy. Slides that showed good quality metaphases were photographed under an Olympus BX51 microscope (Tokyo, Japan). The free edition of Adobe Photoshop Cs6 portable program was used to assemble karyotypes. Afterwards, chromosomes were measured and classified according to the position of the centromere, following Levan et al. (1964).

Results

The diploid number found for Dermanura gnoma Handley, 1987 was 2n = 30 and the number of autosomal chromosome arms was NFa = 56. The karyotypes are composed of ten pairs of meta-submetacentric chromosomes (1, 2, 3, 4, 8, 9, 11, 12, 13 and 14) and four subtelocentric chromosome pairs (5, 6, 7 and 10) (Fig. 2A). The X chromosome is a large subtelocentric and the Y chromosome is a small metacentric. With silver nitrate staining, the nucleolus organizing regions (AgNORs) were observed only in the number 14 pair, in the interstitial position of the long arm (Fig. 2A). In this species, C-banding showed constitutive heterochromatin markings in the pericentromeric regions of all autosomal chromosomes and in X and Y sex chromosomes. Small blocks of heterochromatin were also observed in interstitial regions in the short arms of pairs 5, 6, 7, 10 and on chromosome X (Fig. 2C).

Figure 2.

A, B karyotypes of male individuals stained with Giemsa, highlighted in the boxes the AgNORs marks and the pair of sex chromosomes of A Dermanura gnoma (2n = 30 and NFa= 56) and B Dermanura anderseni (2n = 30 and NFa = 56) C, D karyotypes showing the distribution of constitutive heterochromatin for both species studied C D. gnoma and D D. anderseni. Scale bar: 5 μm.

The karyotype of the species Dermanura anderseni Osgood, 1916 also presented the diploid number 2n = 30 and the number of autosomal chromosome arms NFa = 56. Similar to D. gnoma, the karyotype of this species also presents ten pairs of metacentric chromosomes (1, 2, 3, 4, 8, 9, 11, 12, 13 and 14) and four pairs of subtelocentric chromosomes (5, 6, 7 and 10). The X chromosome is a medium metacentric and the Y chromosome is a small acrocentric. AgNORs were observed in two chromosome pairs: in the short arm of subtelocentric pair no. 7 and in the interstitial position of the long arm of chromosome 13 (Fig. 2B). The constitutive heterochromatin regions presented pericentromeric markings on all autosomal chromosomes and on the X and Y sex chromosomes, in addition to small blocks on the short arms of the subtelocentric pairs 5, 6, 7 and 10 (Fig. 2D).

Discussion

The cytogenetic analyses presented here indicated that for both species, D. anderseni and D. gnoma, the diploid number found was 2n = 30 and NFa = 56. Among the four species of Dermanura that occur in Brazil, only the D. cinerea karyotype was previously known, with karyotype form also described as 2n = 30 and NFa = 56 (Tucker 1986; Souza and Araújo 1990; Santos and Souza 1998b; Santos et al. 2002; Calixto et al. 2014; Sotero-Caio et al. 2017b). However, the analysis of the band patterns showed relevant differences on the C-banding, AgNORs patterns, and on chromosome morphologies of the sexual pair between these species.

Our results verified that the sexual system described as neo-XY was found in D. gnoma, while in D. anderseni the classic XY sexual system was observed, where X is a medium metacentric and Y is a small acrocentric. The classic XY sexual system is the most common for bat species studied to date (Baker 1970; Varella-Garcia et al. 1989; Pieczarka et al. 2005; Calixto et al. 2014). According to Tucker’s proposal (1986), the neo-XY sexual system had its origin when the short arm of the X chromosome underwent fission and there was fusion with the Y chromosome, forming a small metacentric Y and the X chromosome is represented by a large subtelocentric. This system was also observed by Souza and Araújo (1990) in D. cinerea, suggesting that this condition is apomorphic in relation to the condition observed in D. anderseni.

Regarding the location of the ribosomal sites, Santos et al. (2002) described multiple AgNORs for D. cinerea involving pairs 10 (medium metacentric) and 13 (small metacentric). In the present study, multiple AgNORs were observed for D. anderseni, however, involving pairs 7 (medium subtelocentric) and 13 (small metacentric). In D. gnoma the AgNORs are localized in a single and different pair of chromosomes (pair 14 – small metacentric). Thus, this marker is relatively well informative for this group of bats and can, if used with caution, be a good species-specific indicator.

Observations of the nucleolus organizing regions can be performed through FISH (fluorescence in situ hybridization) using probes for rDNA 5S, 18S and 45S (Calixto et al. 2014). In the genus Dermanura, FISH for rDNA 18S were only observed in D. cinerea in pairs 9, 10 and 13 (Santos et al. 2002), confirming the occurrence of a multiple system of rDNA sites. However, this technique has not yet been applied to other species within the genus.

Studies on the distribution pattern of constitutive heterochromatins (C+ bands) agreed with what is generally observed among bats; that is, the presence of blocks of C+ bands in the pericentromeric regions of all chromosomes and in the terminal regions of the subtelocentric chromosome pairs (Souza and Araújo 1990; Santos and Souza 1998b; Rodrigues et al. 2003; Silva et al. 2005; Garcia and Pessôa 2010; Lemos-Pinto et al. 2012; Calixto et al. 2014).

For the family Phyllostomidae, the C+ bands are located in the pericentromeric regions of the chromosomes (Varella-Garcia et al. 1989; Rodrigues et al. 2000; Barros et al. 2009; Sbragia et al. 2010); however, additional conspicuous heterochromatic blocks have been found in interstitial and telomeric regions in several species, such as Carollia perspicillata (Linnaeus, 1758), Choeroniscus minor (Peters, 1868), Glossophaga soricina (Pallas, 1766), Artibeus lituratus (Olfers, 1818), A. planirostris (Spix, 1823), Dermanura cinerea (Gervais, 1856), Sturnira lilium (É. Geoffroy, 1810), Platyrrhinus lineatus (É. Geoffroy, 1810), Uroderma magnirostrum Davis, 1968, U. bilobatum Peters, 1866, Diaemus youngi (Jentnik, 1893), Desmodus rotundus (É. Geoffroy, 1810) and Diphylla ecaudata (Spix, 1823) (Varella-Garcia et al. 1989; Souza and Araújo 1990; Santos and Souza 1998a, b; Neves et al. 2001; Santos et al. 2001; Silva et al. 2005). The constitutive heterochromatin observed in the chromosomes of D. gnoma and D. anderseni follows a distribution pattern similar to that found in bats of the Phyllostomidae family.

Studies conducted with chromosomal mapping of different bat families have revealed that this group is characterized by karyotypic conservation, caused by slow chromosomal evolution (Baker et al. 1980; Varella-Garcia et al. 1989; Souza and Araújo 1990; Morielle-Versute et al. 1996; Pieczarka et al. 2005). However, in a general analysis of the chromosomal data available for the different species already studied, it seems that this conservatism is not a rule. In Phyllostomidae, several subfamilies seem to have relatively divergent karyotypes, at least in their microstructure. In addition, there is a diversity of karyotypic formulas that are quite interesting when comparing different subfamily groups, which supports karyotype studies as an important study area (Pieczarka et al. 2013; Ribas et al. 2015; Sotero-Caio et al. 2015, 2017a).

Overall, the data presented herein expands the cytogenetic knowledge of bats in the Stenodermatinae subfamily and is the first work to analyze the karyotypes of Dermanura gnoma and D. anderseni. The comparative analysis of the species of this subfamily reveals high conservation for this group and reinforces its position as a well-established phylogenetic unit within the order Chiroptera.

Acknowledgments

We grateful to the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – CAPES) for providing the first author with a graduate stipend, the Fundação de Amparo a Pesquisa do Estado de Mato Grosso – FAPEMAT [process 738631/2008] and Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq) [process 4469252014-4].

References

  • Almeida B, Novaes RLM, Aguieiras M, Souza RF, Esbérard CEL, Geise L (2016) Karyotype of three Lonchophylla species (Chiroptera, Phyllostomidae) from Southeastern Brazil. Comparative Cytogenetics 10(1): 109–115. https://doi.org/10.3897/CompCytogen.v10i1.6646
  • Baker RJ, Bickham JW (1980) Karyotypic evolution in bats: Evidence of extensive and conservative chromosomal evolution in closely related taxa. Systematic Zoology 29: 239–253. https://doi.org/10.1093/sysbio/29.3.239
  • Barros HMDR, Sotero-Caio CG, Santos N, Souza MJ (2009) Comparative cytogenetic analysis between Lonchorhina aurita and Trachops cirrhosus (Chiroptera, Phyllostomidae). Genetics and Molecular Biology 32(4): 748–752. https://doi.org/10.1590/S1415-47572009005000095
  • Basantes M, Tinoco N, Velazco PM, Hofmann MJ, Rodríguez-Posada ME, Camacho MA (2020) Systematics and Taxonomy of Tonatia saurophila Koopman & Williams, 1951 (Chiroptera, Phyllostomidae). ZooKeys 915: 59–86. https://doi.org/10.3897/zookeys.915.46995
  • Calixto MS, Andrade IS, Cabral-de-Mello DC, Santos N, Martin C, Loreto V, Souza MJ (2014) Patterns of rDNA and telomeric sequences diversification: contribution to repetitive DNA organization in Phyllostomidae bats. Genetic 142(1): 49–58. https://doi.org/10.1007/s10709-013-9753-2
  • Corrêa MM, Dias D, Mantilla-Meluk H, Lazar A, Bonvicino CR (2017) Karyotypic and phylogeographic analyses of Cormura brevirostris (Chiroptera, Emballonuridae). Journal of Mammalogy 98(5): 1330–1339. https://doi.org/10.1093/jmammal/gyx098
  • Garcia JP, Pessôa LM (2010) Karyotypic composition of bats from the Brazilian nuclear power plant, state of Rio de Janeiro. Chiroptera Neotropical 16(1): 617–628.
  • Gomes AJB, Nagamachi CH, Rodrigues LRR, Benathar TCM, Ribas TFA, O’Brien PCM, Yang F, Ferguson-Smith MA, Pieczarka JC (2016) Chromosomal phylogeny of Vampyressine bats (Chiroptera, Phyllostomidae) with description of two new sex chromosome systems. BMC Evolutionary Biology 16(1): 1–11. https://doi.org/10.1186/s12862-016-0689-x
  • Hoofer SR, Solari S, Larsen PA, Bradley RD, Baker RJ (2008) Phylogenetics of the fruit-eating bats (Phyllostomidae: Artibeina) inferred from mitochondrial DNA sequences. Occasional Papers, Museum of Texas Tech University 277(1): 1–15. https://doi.org/10.5962/bhl.title.156929
  • Howell WMT, Black DA (1980) Controlled silver-staining of nucleolus organizer regions with a protective colloidal developer: a 1-step method. Cellular and Molecular Life Sciences 36: 1014–1015. https://doi.org/10.1007/BF01953855
  • Lemos-Pinto MM, Calixto MS, Souza MJ, Araújo APT, Langguth A, Santos N (2012) Cytotaxonomy of the subgenus Artibeus (Phyllostomidae, Chiroptera) by characterization of species-specific markers. Comparative Cytogenetics 6: 17–28. https://doi.org/10.3897/compcytogen.v6i1.1510
  • Marchesin SRC, Morielle-Versute E (2004) Chromosome studies of Brazilian vespertilionids Lasiurus cinereus and Lasiurus ega (Mammalia, Chiroptera). Iheringia, Série Zoologia 94(4): 443–446. https://doi.org/10.1590/S0073-47212004000400016
  • Morielle-Versute E, Varella-Garcia M, Taddei VA (1996) Karyotypic patterns of seven species of molossid bats (Molossidae, Chiroptera). Cytogenetics and Cell Genetics 72(1): 26–33. https://doi.org/10.1159/000134154
  • Neves ACB, Pieczarka JC, Barros RMS, Marques-Aguiar S, Rodrigues LRR, Nagamachi CY (2001) Cytogenetic studies on Choeroniscus minor (Chiroptera, Phyllostomidae) from the Amazon region. Cytobios 105(409): 91–98.
  • Nogueira MR, Lima IP, Moratelli R, Tavares VC, Gregorin R, Peracchi AL (2014) Checklist of Brazilian bats, with comments on original records. Check List 10(4): 808–821. https://doi.org/10.15560/10.4.808
  • Noronha RC, Nagamachi CY, O’Brien PCM, Ferguson-Smith MA, Pieczarka JC (2010) Meiotic analysis of XX/XY and neo-XX/XY sex chromosomes in Phyllostomidae by cross-species chromosome painting revealing a common chromosome Neo-XY rearrangement in Stenodermatinae. Chromosome Research 18(6): 667–676. https://doi.org/10.1007/s10577-010-9146-7
  • Owen RD (1991) The systematic status of Dermanura concolor (Peters, 1965) (Chiroptera: Phyllostomidae), with description of a new genus. Contributions to Mammalogy in Honor of Karl F. Koopman. Bulletin of the American Museum of Natural History 206(3): 1–432.
  • Pereira AD, Bordignon MO, Tavares VC (2017) Subfamília Stenodermatinae Gervais, 1856 In: Reis NR, Peracchi AL, Batista CB, Lima IP, Pereira AD (Eds) História Natural dos Morcegos Brasileiros: Chave de Identificação de Espécies. Technical Books Editora. Rio de Janeiro, 208–247.
  • Pieczarka JC, Nagamachi CY, O’brien PCM, Yang F, Rens W, Barro RMS, Noronha RCR, Rissino JD, Oliveira EHC, Ferguson-Smith MA (2005) Reciprocal chromosome painting between two South American bats: Carollia brevicauda and Phyllostomus hastatus (Phyllostomidae, Chiroptera). Chromosome Research 13(4): 339–347. https://doi.org/10.1007/s10577-005-2886-0
  • Pieczarka JC, Gomes AJB, Nagamachi CY, Rocha DCC, Rissino JD, O’Brien PCM, Yang F, Ferguson-Smith MA (2013) A phylogenetic analysis using multidirectional chromosome painting of three species (Uroderma magnirostrum, U. bilobatum and Artibeus obscurus) of subfamily Stenodermatinae (Chiroptera Phyllostomidae). Chromosome Research 21: 383–392. https://doi.org/10.1007/s10577-013-9365-9
  • Reis NR, Fregonezi MN, Peracchi AL (2013) Sobre a identificação de morcegos em campo. In: Reis NR, Fregonezi MN, Peracchi AL, Shibatta OA (Eds) Morcegos do Brasil: Guia de Campo. Technical Books Editora. Rio de Janeiro, 19–21.
  • Reis NR, Peracchi AL, Batista CB, Lima IP, Pereira AD (2017) História Natural dos Morcegos Brasileiros: Chave de Identificação de Espécies. Technical Books Editora. Rio de Janeiro, 416 pp.
  • Ribas T, Rodrigues L, Nagamachi C, Gomes A, Rissino J, O’Brien P, Yang F, Ferguson-Smith M, Pieczarka J (2015) Phylogenetic reconstruction by cross-species chromosome painting and G-banding in four species of Phyllostomini tribe (Chiroptera, Phyllostomidae) in the Brazilian Amazon: An independent evidence for monophyly. PLoS ONE 10(3): e0122845. https://doi.org/10.1371/journal.pone.0122845
  • Ribeiro JF, Walter BMT (2008) As principais fitofisionomias do bioma Cerrado. In: Sano SM, Almeida SP, Ribeiro JF (Eds) Cerrado: Ecologia e Flora. Embrapa. Brasília, 151–212.
  • Rizzini CT (1997) Tratado de Fitogeografia do Brasil: Aspectos Ecológicos, Sociológicos e Florísticos. Âmbito Cultural Edições Ltda. Rio de Janeiro, 747 pp.
  • Redondo RAF, Brina LPS, Silva RF, Ditch-Field A, Santos FR (2008) Molecular systematics of the genus Artibeus (Chiroptera: Phyllostomidae). Molecular Phylogenetics and Evolution 49(1): 44–58. https://doi.org/10.1016/j.ympev.2008.07.001
  • Rodrigues LRR, Barros RMS, Assis MFL, Marques-Aguiar AS, Pieczarka JC, Nagamachi CY (2000) Chromosome comparison between two species of Phyllostomus (Chiroptera-Phyllostomidae) from eastern Amazonia, with some phylogenetic insights. Genetics Molecular Biology 23(3): 595–599. https://doi.org/10.1590/S1415-47572000000300016
  • Rodrigues LRR, Barros RMS, Marques-Aguiar S, Assis MDFL, Pieczarka JC, Nagamachi CY (2003) Comparative cytogenetics of two phyllostomids bats. A new hypothesis to the origin of the rearranged X chromosome from Artibeus lituratus (Chiroptera, Phyllostomidae). Caryologia 56(4): 413–419. https://doi.org/10.1080/00087114.2003.10589352
  • Solari S, Martínez-Arias V (2014) Cambios recientes en la sistemática y taxonomía de murciélagos Neotropicales (Mammalia: Chiroptera). Therya 5(1): 167–196. https://doi.org/10.12933/therya-14-180
  • Santos N, Fagundes V, Yonenaga-Yassuda Y, Souza MJ (2001) Comparative karyology of Brazilian vampire bats Desmodus rotundus and Diphylla ecaudata (Phyllostomidae, Chiroptera): Banding patterns, base-specific fluorochromes and FISH of ribossomal genes. Hereditas 134(3): 189–194. https://doi.org/10.1111/j.1601-5223.2001.00189.x
  • Santos N, Souza MJ (1998a) Characterization of the constitutive heterochromatin of Carollia perspicillata (Phyllostomidae, Chiroptera) using the base-specific fluorochromes, CMA3 (GC) and DAPI (AT). Caryologia 51(1): 51–60. https://doi.org/10.1080/00087114.1998.10589119
  • Santos N, Souza MJ (1998b) Use of fluorochromes Chromomycin A3 and DAPI to study constitutive heterochromatin and NORs in four species of bats (Phyllostomidae). Caryologia 51(3): 265–278. https://doi.org/10.1080/00087114.1998.10797418
  • Sbragia IA, Corrêa MMO, Pessôa LM, Oliveira JA (2010) The karyotype of Macrophyllum macrophyllum (Schinz, 1821) (Phyllostomidae: Phyllostominae) from the State of Bahia, Brazil. Chiroptera Neotropical 23(1): 35–42.
  • Silva AM, Marques-Aguiar SA, Barros RMS, Nagamachi CY, Pieczarka JC (2005) Comparative cytogenetic analysis in the species Uroderma magnirostrum and U. bilobatum (cytotype 2n = 42) (Phyllostomidae, Stenodermatinae) in the Brazilian Amazon. Genetics and Molecular Biology 28(2): 248–253. https://doi.org/10.1590/S1415-47572005000200012
  • Solari S, Hoofer SR, Larsen PA, Brown AD, Bull RJ, Guerrero JA, Ortega J, Carrera JP, Bradley RD, Baker RJ (2009) Operational criteria for genetically defined species: analysis of the diversification of the small fruit-eating bats, Dermanura (Phyllostomidae: Stenodermatinae). Acta Chiropterologica 11(2): 279–288. https://doi.org/10.3161/150811009X485521
  • Sotero-Caio CG, Volleth M, Hoffmann FG, Scott L, Wichman HA, Yang F, Baker RJ (2015) Integration of molecular cytogenetics, dated molecular phylogeny, and model-based predictions to understand the extreme chromosome reorganization in the neotropical genus Tonatia (Chiroptera: Phyllostomidae). BMC Evolutionary Biology 15: (220) 1–15. https://doi.org/10.1186/s12862-015-0494-y
  • Sotero-Caio CG, Cabral-de-Mello D, Calixto MS, Valente GT, Martins C, Loreto V, Souza MJ, Santos N (2017b) Centromeric enrichment of LINE-1 retrotransposons and its significance for the chromosome evolution of phyllostomid bats. Chromosome Research 25(2–3): 313–325. https://doi.org/10.1007/s10577-017-9565-9
  • Sousa MJ, Araújo MCP (1990) Conservative pattern of the G-bands and diversity of C-banding partterns and NORs in Estenodermatinae (Chiroptera-Phyllostomatidae). Revista Brasileira de Genética 13(2): 255–268.
  • Sousa RF, Faria KC, Venere PC (2017) Application of differential staining techniques in Vampyrum spectrum (Linnaeus, 1758) (Phyllostomidae, Chiroptera, Mammalia). Caryologia 70(3): 284–288. https://doi.org/10.1080/00087114.2017.1345573
  • Souza EMS, Gross MC, Silva CEF, Sotero-Caio CG, Feldberg E (2017) Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil. Comparative Cytogenetics 11(4): 613–626. https://doi.org/10.3897/CompCytogen.v11i4.14562
  • Tavares JR, Sousa TP, Silva JM, Venere PC, Faria KC (2015) Cytogenetics and DNA barcoding of the Round-eared bats, Tonatia (Chiroptera: Phyllostomidae): a new karyotype for Tonatia bidens. Zoologia 32(5): 371–379. https://doi.org/10.1590/S1984-46702015000500006
  • Tucker PK (1986) Sex chromosome autosome translocations in the leaf-nosed bats, family Phyllostomidae. I. Mitotic analyses of the subfamilies Stenodermatinae and Phyllostominae. Cytogenetics and Cell Genetics 43(1–2): 19–27. https://doi.org/10.1159/000132293
  • Van-Den-Bussche RA, Baker RJ (1993) Molecular phylogenetics of the new world bat genus Phyllostomus based on cytochrome DNA sequence variation. J Mammal 74(3): 793–802. https://doi.org/10.2307/1382304
  • Van-Den-Bussche RA, Hudgeons JL, Baker RJ (1998) Phyllogenetic accuracy, stability, and congruence. Relatioships within and among the New World bat genera Artibeus, Dermanura and Koopmania. In: Kunz TH, Racey PA (Eds) Bat Biology and Conservation. Smithsonian Institution Press. Washington, 59–71.
  • Vizotto LD, Taddei VA (1973) Chave para a determinação de quirópteros brasileiros. Revista da Faculdade de Filosofa, Ciências e Letras, São José do Rio Preto – Boletim de Ciências 1(1): 1–72.
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