Chromosomal Studies in Twelve Species of Leptodactylidae and one Brachycephalidae

Lucca, Edmundo José de; Jim, Jorge; Foresti, Fausto

doi:10.1080/00087114.1974.10796573

Cited by 40 publications

(36 citation statements)

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“…In P. centralis and P. soaresi secondary constriction was reported in the smallest pair of the complement ( DENARO 1972;DE LUCCA et al 1974). Physalaemus albijrons was described by DENARO (1 972) as carrying a secondary constriction in pair 1 1 and in pair 2 but OLIVEIRA and YONENAGA-YASSUDA (1995) reported secondary constriction in pair 9 for specimens from another locality.…”

Section: Discussionmentioning

confidence: 99%

“…All species have a diploid number of 22 chromosomes. By examining the available karyograms (BECAK 1968;BECAK et al 1970;DENARO 1972;DE LUCCA et al 1974;SILVA 1998), it was possible to recognize two basic karyotypic formulas for the genus. One comprises only metacentrics and submetacentrics whereas the other, although very similar to the former, also includes a pair of small telocentric chromosomes.…”

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Nucleolus Organizer Regions in Physalaemus Cuvieri (Anura, Leptodactylidae), with Evidence of a Unique Case of Ag-NOR Variability

2004

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We studied ten specimens of Physuluemus cutiieri collected at different localities in Brazil using conventional staining and banding techniques. All specimens had 2n = 22. There were karyotypic variants: distinct patterns in the number and chromosome localization of Ag-NORs as well as in the corresponding secondary constrictions. Preliminary C-banding patterns obtained for specimens from two localities are also suggestive of karyotypic differentiation in P. cucieri.Sunue Kasahara,

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Section: Discussionmentioning

confidence: 99%

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Nucleolus Organizer Regions in Physalaemus Cuvieri (Anura, Leptodactylidae), with Evidence of a Unique Case of Ag-NOR Variability

2004

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“…The karyotype of Lithodytes lineatus, another taxon included in Leptodactylus by Frost et al (2006), are composed of 18 biarmed chromosomes (Bogart 1970) and Vanzolinius discodactylus has a 2n=22 karyotype very similar to the other Leptodactylus above referred (Heyer and Diment 1974). Results of Frost et al (2006) and Grant et al (2006) suggest that the clade including Paratelmatobius and Scythrophrys is the sister group of Leptodactylus, and in both genus karyotypes with 24 chromosomes were observed (De Lucca et al 1974, Lourenço et al 2000, 2001, 2003. Taking a conservative approach to the contents of Leptodactylus (i.e., excluding Adenomera, Lithodytes, and Vanzolinius) the distinct diploid number of L. silvanimbus could be interpreted according to two different hypotheses.…”

Section: Discussionmentioning

confidence: 99%

Karyotypes of eight species of Leptodactylus (Anura, Leptodactylidae) with a description of a new karyotype for the genus

et al. 2006

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“…The cytogenetic information on Paratelmatobius is restricted to the chromosome number and morphology of the karyotype of P. lutzii (DE LUCCA et al 1974). To provide more data for a phylogenetic analysis of this group, we have done a cytogenetic study of the living species of Paratelmatobius, P. cardosoi Pombal Jr. and Haddad and P. poecilogaster Giaretta and Castanho (see review by POMBAL JR. and HADDAD 1999).…”

Section: Shirlei Muriu Recco-pimentel Departamenin De Biologia Cellumentioning

confidence: 99%

“…The proximity between the genera Paratelmatobius and Scythrophrys, suggested by LYNCH (1971) andHEYER (1975), was also indicated by GARCIA (1996). Based on ecological and morphological characters, GARCIA (1 996) suggested a closer relationship between Scythrophrys and P. gaigeae ( = P. cardosoi sensu POMBAL JR. and HAD-DAD 1999) than between this species of Paratelmatobius and P. lutzii, and suggested a revision of both of these genera.The cytogenetic information on Paratelmatobius is restricted to the chromosome number and morphology of the karyotype of P. lutzii (DE LUCCA et al 1974). To provide more data for a phylogenetic analysis of this group, we have done a cytogenetic study of the living species of Paratelmatobius, P. cardosoi Pombal Jr. and Haddad and P. poecilogaster Giaretta and Castanho (see review by POMBAL JR. and HADDAD 1999).…”

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Cytogenetics of two Species of Paratelmatobius (Anura: Leptodactylidae), with Phylogenetic Comments

2004

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In this paper we provide a cytogenetic analysis of Paratelmatobius cardosoi and Paratelmatobius poecilogaster. The karyotypes of both species showed a diploid number of 24 chromosomes and shared some similarity in the morphology of some pairs. On the other hand, pairs 4 and 6 widely differed between these complements. These karyotypes also differed in their NOR number and location. Size heteromorphism was seen in all NOR-bearing chromosomes of the two karyotypes. In addition, both karyotypes showed small centromeric C-bands and a conspicuous heterochromatic band in the short arm of chromosome 1, although with a different size in each species. The P. curdosoi complement also showed other strongly stained non-centromeric C-bands, with no counterparts in the P. curdosoi karyotype. Chromosome staining with fluorochromes revealed heterogeneity in the base composition of two of the non-centromeric C-bands of P . curdosoi.Comparison of the chromosomal morphology of these Parutelmatohius karyotypes with that of P. Iutzii showed that the P . poeciloguster karyotype is more similar to that of P . lutzii than P. cardosoi. These cytogenetic results agree with the proposed species arrangements in the P. curdosoi and P. lutzii groups based on morphological and ecological data. SP, The genus Paratelmatobius Lutz and Carvalho is endemic to Brazil and comprises the species P. lutzii, P. gaigeae, P. poecilogaster, P. cardosoi and P. mantiqueira (see review by POMBAL JR. and HADDAD 1999). Paratelmatobius species are usually rare, and P. gaigeae, P. lutzii and P. mantiqueira may be considered as missing species (POMBAL JR. and HADDAD 1999). Based on morphological and ecological data, POMBAL JR. and HADDAD (1999) recognized two species groups, the P. cardosoi group and the P. lutzii group, in this genus. The former group contains P. cardosoi and P. mantiqueira and the P. lutzii group encompasses P. lutzii, P. poecilogaster, and probably P. gaigeae. Shirlei Muriu Recco-Pimentel, Departamenin de Biologia Cellular, IB Universidude Esradual de Cumpinas (UNICAMP)The intergeneric phylogenetic relationships of this group are not yet clear. LYNCH (1971) considered Paratelmatobius a member of the subfamily Leptodactylinae and pointed out some morphological similarities among Paratelmatobius, Scythrophrys, Physalaemus and, to a lesser extent, Zachaenus. This classification was followed by FROST (1999). HEYER (1975) Paratelmatobius grouped together with the genera Scythrophrys, Zuchaenus, Thoropa, Megaelosia, Hylodes, Cycloramphus, Crossodactylus, Crossodactylodes and Craspedoglossa. The proximity between the genera Paratelmatobius and Scythrophrys, suggested by LYNCH (1971) andHEYER (1975), was also indicated by GARCIA (1996). Based on ecological and morphological characters, GARCIA (1 996) suggested a closer relationship between Scythrophrys and P. gaigeae ( = P. cardosoi sensu POMBAL JR. and HAD-DAD 1999) than between this species of Paratelmatobius and P. lutzii, and suggested a revision of both of these genera.The cytogenetic informatio...

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Chromosomal Studies in Twelve Species of Leptodactylidae and one Brachycephalidae

Cited by 40 publications

References 10 publications

Nucleolus Organizer Regions in Physalaemus Cuvieri (Anura, Leptodactylidae), with Evidence of a Unique Case of Ag-NOR Variability

Nucleolus Organizer Regions in Physalaemus Cuvieri (Anura, Leptodactylidae), with Evidence of a Unique Case of Ag-NOR Variability

Karyotypes of eight species of Leptodactylus (Anura, Leptodactylidae) with a description of a new karyotype for the genus

Cytogenetics of two Species of Paratelmatobius (Anura: Leptodactylidae), with Phylogenetic Comments

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