Chromosomal differentiation of populations of Lysapsus limellus limellus, L. l. bolivianus, and of Lysapsus caraya (Hylinae, Hylidae)

Busin, Carmen Silvia; Lima, Albertina P.; Prado, Cynthia P. A.; Strüssmann, Christine; Júnior, Sérgio Siqueira; Recco‐Pimentel, Shirlei Maria

doi:10.1016/j.micron.2005.11.009

Cited by 23 publications

(41 citation statements)

References 22 publications

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“…To pre- 298 serve the chromosome homeology suggested by previous authors, the orders of some chromosome pairs were altered in Dendropsophus and Lysapsus species. The telocentric chromosomes of Dendropsophus were ordered following the proposal of Bogart [1973], whereas the second and third pairs of L. laevis were altered following Busin et al [2006]. The short and long arms of the chromosomes are termed p and q, respectively.…”

Section: Analysis Of Karyotypes and Banding Patternsmentioning

confidence: 99%

“…cardosoi karyotype (2n = 28; FN = 48) is an autapomorphic condition due to Robertsonian rearrangements [Busin et al, 2000[Busin et al, , 2008. L. caraya differs from other taxa having all metacentric chromosomes and NORs on 6p [Busin et al, 2006], whereas the remaining species with 2n = 24 have nuclear constrictions and NORs on pair 7q [Busin et al, 2000;present work]. Although P. cardosoi bears the NORs on 5q [Busin et al, 2000[Busin et al, , 2008, these chromosomes should be considered homeologous to 7q chromosomes of other Lysapsus and Pseudis karyotypes, as the different location in the karyotype would be a consequence of the fissions of pairs 1 and 4 that originated the 28-chromosome karyotype [Busin et al, 2000].…”

Section: Lysapsus Pseudis and Scarthyla: Homeology Robertsonian Reamentioning

confidence: 99%

“…Although P. cardosoi bears the NORs on 5q [Busin et al, 2000[Busin et al, , 2008, these chromosomes should be considered homeologous to 7q chromosomes of other Lysapsus and Pseudis karyotypes, as the different location in the karyotype would be a consequence of the fissions of pairs 1 and 4 that originated the 28-chromosome karyotype [Busin et al, 2000]. Additional NORs were detected on 1q and 8q pairs in L. bolivianus and on 7q in L. caraya [Busin et al, 2006].…”

Section: Lysapsus Pseudis and Scarthyla: Homeology Robertsonian Reamentioning

confidence: 99%

“…The C-banding patterns in species of Lysapsus and Pseudis include centromeric bands on most chromosome pairs [Busin et al, 2000[Busin et al, , 2006[Busin et al, , 2008present work]. Additionally, interstitial and distal C-bands are present on chromosome pairs 1-3 and 6-8 [Busin et al, 2000[Busin et al, , 2006[Busin et al, , 2008present work].…”

Section: Lysapsus Pseudis and Scarthyla: Homeology Robertsonian Reamentioning

confidence: 99%

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Chromosome Evolution in Dendropsophini (Amphibia, Anura, Hylinae)

Suárez

Cardozo

Baldo

et al. 2013

Cytogenet Genome Res

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Dendropsophini is the most species-rich tribe within Hylidae with 234 described species. Although cytogenetic information is sparse, chromosome numbers and morphology have been considered as an important character system for systematic inferences in this group. Using a diversity of standard and molecular techniques, we describe the previously unknown karyotypes of the genera Xenohyla, Scarthyla and Sphaenorhynchus and provide new information on Dendropsophus and Lysapsus. Our results reveal significant karyotype diversity among Dendropsophini, with diploid chromosome numbers ranging from 2n = 22 in S. goinorum, 2n = 24 in Lysapsus, Scinax, Xenohyla, and almost all species of Sphaenorhynchus and Pseudis, 2n = 26 in S.carneus, 2n = 28 in P.cardosoi, to 2n = 30 in all known Dendropsophus species. Although nucleolar organizer regions (NORs) and C-banding patterns show a high degree of variability, NOR positions in 2n = 22, 24 and 28 karyotypes and C-banding patterns in Lysapsus and Pseudis are informative cytological markers. Interstitial telomeric sequences reveal a diploid number reduction from 24 to 22 in Scarthyla by a chromosome fusion event. The diploid number of X.truncata corroborates the character state of 2n = 30 as a synapomorphy of Dendropsophus.

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Section: Analysis Of Karyotypes and Banding Patternsmentioning

confidence: 99%

Section: Lysapsus Pseudis and Scarthyla: Homeology Robertsonian Reamentioning

confidence: 99%

Section: Lysapsus Pseudis and Scarthyla: Homeology Robertsonian Reamentioning

confidence: 99%

Section: Lysapsus Pseudis and Scarthyla: Homeology Robertsonian Reamentioning

confidence: 99%

See 2 more Smart Citations

Chromosome Evolution in Dendropsophini (Amphibia, Anura, Hylinae)

Suárez

Cardozo

Baldo

et al. 2013

Cytogenet Genome Res

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“…Numerous studies about chromosome analyses have provided information for studies in taxonomy and phylogeny, and are also used as a fundamental characteristic in species identification (Busin et al 2001;Aguiar et al 2002Aguiar et al , 2004Busin et al 2006Busin et al , 2008Lourenço et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Redescription of the karyotype of five species of the family Bufonidae (Amphibia: Anura) from central area of Argentina

et al. 2011

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In this study karyotypic features of the five species of the family Bufonidae from the central area of Argentina are described. The species are Rhinella achalensis, Rhinella arenarum, Rhinella fernandezae, Rhinella schneideri and Melanophryniscus stelzneri. The metaphases were obtained from intestinal and testis cells, using conventional techniques. Twenty metaphasic figures per individual were analyzed and the total length of each chromosome and the length of the four arms were measured. The obtained measurements were processed using Excel 2000 to obtain the average length of the arms p and q, the arm ratio, the centromeric index, the relative chromosome length and the relative arm length. All species showed karyotype 2n = 22, and karyotype formula of 6 : 5. Pairs one to six were large, with a relative chromosome length between 18.64-7.59%; pairs seven to eleven were small, with a relative chromosome length between 7.18-2.42%. In all species the chromosome morphology was metacentric or submetacentric. Karyotype and ideograms were made for all species, based on morphometric parameters of the chromosome complement. Finally, discriminant analysis was used to separate the five species analyzed, with a highly significant classification rate of 80% and P < 0.0001. These results agree, in general, with those presented by other authors, however, in M. stelzneri detailed karyological studied have not been made so far, thus this work represents a significant contribution to the karyotypic decryption features of this species and the Rhinellla species from central area of Argentina.

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The karyotypes of five species of the Scinax perpusillus group (Amphibia, Anura, Hylidae) of southeastern Brazil show high levels of chromosomal stabilization in this taxon

et al. 2015

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Based on morphological, bioacoustics, and morphological traits, the genus Scinax has been subdivided into two major clades: S. catharinae and S. ruber. The first clade includes S. catharinae and S. perpusillus groups, whereas the second clade includes S. rostratus and S. uruguayus groups. Chromosome morphology, NOR and C-banding patterns of variation support these clades. This study aims the cytogenetic characterization of five species currently included in the S. perpusillus group: Scinax sp. (gr. perpusillus), S. arduous, S. belloni, S. cosenzai, and S. v-signatus, including standard cytogenetic techniques and repetitive DNA FISH probes. All species had 2n = 24 chromosomes. Nucleolar organizing regions occurred in chromosome pair 6 in all species, but differed in their locations among some species, suggesting a putative synaponomastic character for the clade. In S. belloni, the first chromosome pair was a metacentric, contrasting with the submetacentric first pair reported in all other species of the genus. Scinax sp. (gr. perpusillus) and S. v-signatus had similar karyotypic formulae, suggesting they are related species. Scinax cosenzai had a divergent C-banding pattern. Repetitive DNA probes hybridized more frequently in chromosomal subtelomeric regions in all species indicating recent cladogenesis in these species. Karyotypic evidence indicates unreported high levels of stabilization within S. perpusillus and in S. catharinae clade, resulting in a wealth of characters potentially informative for higher phylogenetic analyses.

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Chromosomal differentiation of populations of Lysapsus limellus limellus, L. l. bolivianus, and of Lysapsus caraya (Hylinae, Hylidae)

Cited by 23 publications

References 22 publications

Chromosome Evolution in Dendropsophini (Amphibia, Anura, Hylinae)

Chromosome Evolution in Dendropsophini (Amphibia, Anura, Hylinae)

Redescription of the karyotype of five species of the family Bufonidae (Amphibia: Anura) from central area of Argentina

The karyotypes of five species of the Scinax perpusillus group (Amphibia, Anura, Hylidae) of southeastern Brazil show high levels of chromosomal stabilization in this taxon

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